MCP4461T-104E/ST Microchip Technology, MCP4461T-104E/ST Datasheet
MCP4461T-104E/ST
Specifications of MCP4461T-104E/ST
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MCP4461T-104E/ST Summary of contents
Page 1
... Wide Bandwidth (-3 dB) Operation MHz (typical) for 5.0 kΩ device • Extended temperature range (-40°C to +125°C) • Package Types: 4x4 QFN-20, TSSOP-20 and TSSOP-14 © 2010 Microchip Technology Inc. MCP444X/446X 2 C Digital POT with Nonvolatile Memory Package Types (Top View) ...
Page 2
... P2A P2W P2B P3A P3W P3B V DD Wiper Operating - R (2) Range W (Ω) 75 129 1.8V to 5.5V 75 129 1.8V to 5.5V 75 129 2.7V to 5.5V 75 129 2.7V to 5.5V 75 257 1.8V to 5.5V 75 257 1.8V to 5.5V 75 257 2.7V to 5.5V 75 257 2.7V to 5.5V © 2010 Microchip Technology Inc. ...
Page 3
... Maximum Junction Temperature (T ) ......................... +150°C J © 2010 Microchip Technology Inc. † Notice: Stresses above those listed under “Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operational listings of this specification is not implied ...
Page 4
... Write all 0’s to volatile Wiper 5.5V 100 kHz DD SCL EE Write Current (Write Cycle) (Nonvolatile device only 5.5V 400 kHz, DD SCL Write all 0’s to Nonvolatile Wiper 0 SCL = Serial Interface Inactive, (Stop condition, SCL = SDA = Wiper = 5.5V, HVC/ specification. PU © 2010 Microchip Technology Inc. ...
Page 5
... The MCP44X1 is externally connected to match the configurations of the MCP44X2, and then tested. 8: POR/BOR is not rate dependent. 9: 10: Supply current is independent of current through the resistor network. 11: When HVC/ the I IHH © 2010 Microchip Technology Inc. –40°C ≤ +2.7V to 5.5V, 5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ devices. DD Min Typ Max Units 4 ...
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... R = 8000Ω AB(MIN 0V 5.5V 40000Ω AB(MIN 0V 5.5V 80000Ω AB(MIN) MCP44X1 PxA = PxW = PxB = V SS MCP44X2 PxB = PxW = V SS Terminals Disconnected (R0A = R0W = R0B = 0; R1A = R1W = R1B = 0; R2A = R2W = R2B = 0; R3A = R3W = R3B = 0) specification. PU © 2010 Microchip Technology Inc. ...
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... The MCP44X1 is externally connected to match the configurations of the MCP44X2, and then tested. 8: POR/BOR is not rate dependent. 9: 10: Supply current is independent of current through the resistor network. 11: When HVC/ the I IHH © 2010 Microchip Technology Inc. –40°C ≤ +2.7V to 5.5V, 5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ devices. DD Min Typ Max Units -6 ...
Page 8
... I = 450 µA W 3.0V 240 µA W (Note 7) 50 kΩ 8-bit 5.5V µA W 3.0V µA W (Note 7) 7-bit 5.5V µA W 3.0V µA W (Note 7) 100 kΩ 8-bit 5.5V µA W 3.0V µA W (Note 7) 7-bit 5.5V µA W 3.0V µA W (Note 7) specification. PU © 2010 Microchip Technology Inc. ...
Page 9
... The MCP44X1 is externally connected to match the configurations of the MCP44X2, and then tested. 8: POR/BOR is not rate dependent. 9: 10: Supply current is independent of current through the resistor network. 11: When HVC/ the I IHH © 2010 Microchip Technology Inc. –40°C ≤ +2.7V to 5.5V, 5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ devices. DD Min Typ Max Units -0.5 ± ...
Page 10
... All inputs except SDA and SCL V < 2.0V DD 100 kHz ≥ 2. SDA V < 2.0V DD and 400 kHz ≥ 2. SCL 1.7 MHz 3.4 Mhz Threshold for WiperLock Technology Pin can tolerate V or less. MAX V < 2.0V mA ≥ 2.0V specification. PU © 2010 Microchip Technology Inc. ...
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... The MCP44X1 is externally connected to match the configurations of the MCP44X2, and then tested. 8: POR/BOR is not rate dependent. 9: 10: Supply current is independent of current through the resistor network. 11: When HVC/ the I IHH © 2010 Microchip Technology Inc. –40°C ≤ +2.7V to 5.5V, 5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ devices. DD Min Typ Max Units — ...
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... All parameters apply across the specified operating ranges unless noted +2.7V to 5.5V, 5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ devices. DD Typical specifications represent values for V Min Typ Max Units 50 — — ns — — ≤ +125°C (extended 5.5V +25° Conditions © 2010 Microchip Technology Inc. ...
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... HD STO Hold time 94 T HVC to SCL Setup time HVCSU 95 T SCL to HVC Hold time HVCHD © 2010 Microchip Technology Inc. MCP444X/446X Standard Operating Conditions (unless otherwise specified) –40°C ≤ T Operating Temperature Operating Voltage V range is described in DD Min Max Units Standard Mode ...
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... MHz mode 320 3.4 MHz mode 160 — 102 92 110 ≤ +125°C (Extended) A AC/DC characteristics Units Conditions ns 1.8V-5.5V ns 2.7V-5.5V ns 4.5V-5.5V ns 4.5V-5.5V ns 1.8V-5.5V ns 2.7V-5.5V ns 4.5V-5.5V ns 4.5V-5.5V 2 C-bus system, but the 2 C bus specification) before specification, but © 2010 Microchip Technology Inc. ...
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... A Master Transmitter must provide a delay to ensure that difference between SDA and SCL fall times do 6: not unintentionally create a Start or Stop condition. Ensured by the T 3.4 MHz specification test © 2010 Microchip Technology Inc. MCP444X/446X Standard Operating Conditions (unless otherwise specified) –40°C ≤ T Operating Temperature Operating Voltage V range is described in ...
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... Cb = 100 pF, Note 1, Note 400 pF, Note 1, Note 100 pF, Note 1 ns Time the bus must be free before a new transmission ns can start Philips Spec states N. Spike suppression ns Spike suppression 2 C-bus system, but the 2 C bus specification) before specification, but © 2010 Microchip Technology Inc. ...
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... Electrical Specifications: Unless otherwise indicated, V Parameters Temperature Ranges Specified Temperature Range Operating Temperature Range Storage Temperature Range Thermal Package Resistances Thermal Resistance, 14L-TSSOP Thermal Resistance, 20L-QFN Thermal Resistance, 20L-TSSOP © 2010 Microchip Technology Inc. MCP444X/446X = +2.7V to +5.5V Sym Min Typ Max Units T -40 — ...
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... MCP444X/446X NOTES: DS22265A-page 18 © 2010 Microchip Technology Inc. ...
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... Device Current ( (HVC/ vs. Ambient Temperature 500 400 5.5V 300 200 2.7V 100 0 - Ambient Temperature (°C) FIGURE 2-3: Write Current (I Ambient Temperature and © 2010 Microchip Technology Inc 250 200 150 100 120 vs FIGURE 2-4: DD Resistance (R A0 Input Voltage (V 12.0 10.0 8 ...
Page 20
... Rw -40C INL 25C INL 85C INL 125C INL 6 -40C DNL 25C DNL 85C DNL 125C DNL INL -40°C 25°C DNL 85° 128 160 192 224 256 Wiper Setting (decimal) Ω Ω Rheo Mode – 3.0V). DD © 2010 Microchip Technology Inc. ...
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... A 5300 5250 5200 5150 5100 5050 - Ambient Temperature (°C) Ω FIGURE 2-10 – Nominal Resistance Ω vs. Ambient Temperature and V AB © 2010 Microchip Technology Inc 6000 5000 2.7V 4000 3000 2000 1000 5. 120 0 32 FIGURE 2-11: . Setting and Ambient Temperature ...
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... R PPM/°C vs BW(code=n, 125°C) BW(code=n, - /165°C * 1,000,000) = 190 µA). W CH1 CH3 64 96 128 160 192 224 256 Wiper Code Ω – R PPM/°C vs BW(code=n, 125°C) BW(code=n, - /165°C * 1,000,000) = 190 µA). W © 2010 Microchip Technology Inc. ...
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... FIGURE 2-18 – Low-Voltage Decrement Wiper Settling Time (V (1 µs/Div). Ω FIGURE 2-19 – Power-Up Wiper Response Time (20 ms/Div). © 2010 Microchip Technology Inc FIGURE 2-20: = 2.7V) Increment Wiper Settling Time ( µs/Div). FIGURE 2-21: = 5.5V) Increment Wiper Settling Time ( µ ...
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... W = 5.5V -40C Rw 25C Rw 85C Rw 125C Rw -40C INL 25C INL 85C INL 125C INL -40C DNL 25C DNL 85C DNL 125C DNL 3 INL DNL -40°C 85°C 25°C -2 Wiper Setting (decimal) Ω Ω Rheo Mode – 3.0V). DD © 2010 Microchip Technology Inc. ...
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... Ambient Temperature (°C) Ω FIGURE 2-26 – Nominal Resistance Ω vs. Ambient Temperature and V AB © 2010 Microchip Technology Inc 12000 10000 8000 6000 4000 2000 0 80 120 0 FIGURE 2-27: . Setting and Ambient Temperature ...
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... R PPM/°C vs BW(code=n, 125°C) BW(code=n, - /165°C * 1,000,000) = 150 µA). W CH1 CH3 64 96 128 160 192 224 256 Wiper Code Ω – R PPM/°C vs BW(code=n, 125°C) BW(code=n, - /165°C * 1,000,000) = 150 µA). W © 2010 Microchip Technology Inc. ...
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... FIGURE 2-33 – Low-Voltage Decrement Wiper Settling Time (V (1 µs/Div). Ω FIGURE 2-34 – Low-Voltage Decrement Wiper Settling Time (V (1 µs/Div). © 2010 Microchip Technology Inc FIGURE 2-35: = 2.7V) Increment Wiper Settling Time ( µs/Div). FIGURE 2-36: = 5.5V) Increment Wiper Settling Time ( µ ...
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... INL 125C INL 0.75 -40C DNL 25C DNL 85C DNL 125C DNL INL 0.5 DNL 0.25 0 -0. -0.5 -40°C -0.75 25°C 85° 128 160 192 224 256 Wiper Setting (decimal) Ω Ω Rheo Mode – 3.0V). DD © 2010 Microchip Technology Inc ...
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... Ambient Temperature (°C) Ω FIGURE 2-41 – Nominal Resistance Ω vs. Ambient Temperature and V AB © 2010 Microchip Technology Inc 60000 50000 40000 30000 20000 10000 0 80 120 0 FIGURE 2-42: . Setting and Ambient Temperature ...
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... Wiper Code Ω – R PPM/°C vs BW(code=n, 125°C) BW(code=n, - /165°C * 1,000,000 µA). W CH1 CH3 64 96 128 160 192 224 256 Wiper Code Ω – R PPM/°C vs BW(code=n, 125°C) BW(code=n, - /165°C * 1,000,000 µA). W © 2010 Microchip Technology Inc. ...
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... FIGURE 2-48 – Low-Voltage Decrement Wiper Settling Time (V (1 µs/Div). Ω FIGURE 2-49 – Low-Voltage Decrement Wiper Settling Time (V (1 µs/Div). © 2010 Microchip Technology Inc FIGURE 2-50: = 2.7V) Increment Wiper Settling Time ( µs/Div). FIGURE 2-51: = 5.5V) Increment Wiper Settling Time ( µ ...
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... DD 0.6 25C Rw 85C Rw 125C Rw 25C INL 85C INL 125C INL 25C DNL 85C DNL 125C DNL 0.4 INL 0 -0.4 -40°C 25°C -0.6 96 128 160 192 224 256 Ω 100 k Rheo Mode – 3.0V). DD © 2010 Microchip Technology Inc. ...
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... Ambient Temperature (°C) Ω FIGURE 2-56: 100 k – Nominal Ω Resistance ( vs. Ambient Temperature AB and © 2010 Microchip Technology Inc 120000 100000 80000 60000 40000 20000 0 80 120 0 FIGURE 2-57: Setting and Ambient Temperature (V = 5.5V 120000 ...
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... R PPM/°C vs BW(code=n, 125°C) BW(code=n, - /165°C * 1,000,000 µA). W CH0 CH1 CH2 CH3 64 96 128 160 192 224 256 Wiper Code Ω 100 k – R PPM/°C vs BW(code=n, 125°C) BW(code=n, - /165°C * 1,000,000 µA). W © 2010 Microchip Technology Inc. ...
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... FIGURE 2-63: 100 k – Low-Voltage Decrement Wiper Settling Time (V (1 µs/Div). Ω FIGURE 2-64: 100 k – Low-Voltage Decrement Wiper Settling Time (V (1 µs/Div). © 2010 Microchip Technology Inc FIGURE 2-65: = 2.7V) Increment Wiper Settling Time ( µs/Div). FIGURE 2-66: = 5.5V) ...
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... Temperature (°C) FIGURE 2-68: V (SDA, SCL) vs Temperature. DS22265A-page 230 210 190 170 150 130 110 -40 80 120 and FIGURE 2-69: DD Temperature (I 80 120 and DD 2.7V 5. 120 Temperature (°C) V (SDA) vs. V and mA). OL © 2010 Microchip Technology Inc. ...
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... Cycle Time vs. V and Temperature. DD 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 - Temperature (°C) FIGURE 2-71: POR/BOR Trip point vs. V and Temperature. © 2010 Microchip Technology Inc 2.1 Test Circuits V IN Offset GND 80 120 FIGURE 2-72: Test. floating ...
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... MCP444X/446X NOTES: DS22265A-page 38 © 2010 Microchip Technology Inc. ...
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... The QFN package has a contact on the bottom of the package. This contact is conductively connected to 2: the die substrate, and therefore should be unconnected or connected to the same ground as the device’s V pin. SS © 2010 Microchip Technology Inc. MCP444X/446X Table 3-1. Weak Pull-up/ Buffer ...
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... This pad could be SS used to assist as a heat sink for the device when connected to a PCB heat sink. and SS is connected to the internal and interface’s Address 1 pin. Along ) < V (2.7V), the electrical DD min © 2010 Microchip Technology Inc. ...
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... The volatile wiper register is loaded with value in the corresponding nonvolatile wiper register • The TCON registers are loaded with their default value • The device is capable of digital operation © 2010 Microchip Technology Inc. 4.1.2 BROWN-OUT RESET When the device powers down, the device V cross the V ...
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... Factory (2) Initialization — — — — 8-bit 80h 7-bit 40h 8-bit 80h 7-bit 40h — — — — — — 8-bit 80h 7-bit 40h 8-bit 80h 7-bit 40h — 000h 000h 000h 000h 000h IHH © 2010 Microchip Technology Inc. ...
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... Mid scale 80h 40h -104 100.0 kΩ Mid scale 80h 40h © 2010 Microchip Technology Inc. 4.2.1.4 Special Features There are 5 nonvolatile bits that are not directly mapped into the address space. These bits control the following functions: • EEPROM Write Protect • ...
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... R-0 R-x (1) (1) WL2 EEWA WL1 U = Unimplemented bit, read as ‘0’ ‘0’ = Bit is cleared x = Bit is unknown Section 5.3 “WiperLock Technology” Section 5.3 “WiperLock Technology” R-x R-1 R-x (1) (1) WL0 — WP bit 0 for for © 2010 Microchip Technology Inc. ...
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... Requires a High Voltage command to modify the state of this bit (for Nonvolatile devices only). This bit is Note 1: not directly written, but reflects the system state (for this feature). © 2010 Microchip Technology Inc. MCP444X/446X Section 5.3 “WiperLock Technology” Section 5.3 “WiperLock Technology” ...
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... R2HW, R2A, R2W, and R2B are inhibited POR/BOR these registers are loaded with 1FFh (9-bit), for all terminals connected. The Host Controller needs to detect the POR/BOR event and then update the Volatile TCON register values. © 2010 Microchip Technology Inc. ...
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... This bit connects/disconnects the Resistor 0 Terminal B to the Resistor 0 Network 1 = P0B pin is connected to the Resistor 0 Network 0 = P0B pin is disconnected from the Resistor 0 Network These bits do not affect the wiper register values. Note 1: © 2010 Microchip Technology Inc. (1) R/W-1 R/W-1 R/W-1 R1W ...
Page 48
... P2B pin is disconnected from the Resistor 2 Network These bits do not affect the wiper register values. Note 1: DS22265A-page 48 (1) R/W-1 R/W-1 R/W-1 R3W R3B R2HW U = Unimplemented bit, read as ‘0’ ‘0’ = Bit is cleared R/W-1 R/W-1 R/W-1 R2A R2W R2B bit Bit is unknown © 2010 Microchip Technology Inc. ...
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... FIGURE 5-1: Resistor Block Diagram. © 2010 Microchip Technology Inc. 5.1 Resistor Ladder Module The resistor ladder is a series of equal value resistors (R ) with a connection point (tap) between the two S resistors. The total number of resistors in the series ...
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... POR/BOR OPERATION WHEN WIPERLOCK TECHNOLOGY ENABLED The WiperLock Technology state is not affected by a POR/BOR event. A POR/BOR event will load the Volatile Wiper register value with the Nonvolatile Wiper register value, refer to Section 4.1. Modify Write © 2010 Microchip Technology Inc. ...
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... In other words, the RxHW bit does not corrupt the state of the RxA, RxW, and RxB bits. © 2010 Microchip Technology Inc. The RxHW bit does NOT corrupt the values in the Volatile Wiper Registers nor the TCON register. When the Shutdown mode is exited (RxHW bit = “ ...
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... MCP444X/446X NOTES: DS22265A-page 52 © 2010 Microchip Technology Inc. ...
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... This pin could be tied high, low, or connected to an I/O pin of the Host Controller. 2 FIGURE 6-1: Typical I C Interface Block Diagram. © 2010 Microchip Technology Inc. MCP444X/446X 2 C) 6.1 Signal Descriptions 2 The I C interface uses up to four pins (signals). These are: • ...
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... After device has received address and command A After device has received address and command, and valid condi- tions for EEPROM write 2 N. Module Resets “Don’t Care” if the colli- sion occurs on the Master’s “Start bit” © 2010 Microchip Technology Inc. ...
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... Data allowed START Condition to change 2 FIGURE 6- Data States and Bit Sequence. © 2010 Microchip Technology Inc. 6.2.1.5 The Stop bit (see Data Transfer Sequence. The Stop bit is defined as the SDA signal rising when the SCL signal is “High”. A Stop bit resets the I devices ...
Page 56
... As the device transitions from HS mode to FS mode, the slope control parameter will change from the HS specification to the FS specification. For Fast (FS) and High-Speed (HS) modes, the device has a spike suppression and a Schmidt trigger at SDA and SCL inputs. © 2010 Microchip Technology Inc. Table 6-2 Comment Supports devices. (Note ...
Page 57
... R/W = Read/Write bit P = Stop bit (Stop condition terminates HS Mode) FIGURE 6-10: HS Mode Sequence. © 2010 Microchip Technology Inc. After switching to the High-Speed mode, the next transferred byte is the I the device to communicate with, and any number of data bytes plus acknowledgements. The Master ...
Page 58
... Any other code is Not Acknowledged. Note 1: These codes may be used by other devices on the I The 7-bit command always appends a “0” form 8-bits. “d” is the D8 bit for the 9-bit write value. 3: Comment 2 C bus. © 2010 Microchip Technology Inc. ...
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... Write Next Byte (Third Byte) to TCON Register. The Following is a “Hardware General Call” Format General Call Address FIGURE 6-11: General Call Formats. © 2010 Microchip Technology Inc. Second Byte “7-bit Command” Specification - Philips # 9398 393 40011, Ver. 2.1 January 2000) Second Byte ...
Page 60
... MCP444X/446X NOTES: DS22265A-page 60 © 2010 Microchip Technology Inc. ...
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... WiperLock Technology and the software Write Protect feature. © 2010 Microchip Technology Inc. MCP444X/446X Normal serial commands are those where the HVC pin is driven to V Commands, the HVC pin is driven to V mode, there are four possible commands. ...
Page 62
... Wiper Lock 3 Enable nn nnnn nnnn nn nnnn nnnn nn nnnn nnnn nn nnnn nnnn nn nnnn nnnn nn nnnn nnnn nn nnnn nnnn nn nnnn nnnn nn nnnn nnnn nn nnnn nnnn nn nnnn nnnn nn nnnn nnnn — Write Protect Disable — Write Protect Enable © 2010 Microchip Technology Inc. ...
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... Write Protect is enabled. If the command is executed using with address 02h, 03h 08h, or 09h; that corresponding wiper is unlocked with address 0Fh, then Write Protect is disabled. © 2010 Microchip Technology Inc. MCP444X/446X 7.3 Error Condition If the four address bits received (AD3:AD0) and the two ...
Page 64
... High Voltage operational state. High Voltage commands allow the device’s WiperLock Technology and write protect features to be enabled and disabled. The HVC pin has an internal resistor connection to the MCP44XXs internal nonvolatile ) Control Byte. signal. DD © 2010 Microchip Technology Inc. ...
Page 65
... WRITE Command Only functions when writing the volatile wiper registers (AD3:AD0 = 00h, 01h, 06h, and Note: 07h) or the TCON registers (AD3:AD0 = 04h and 0Ah) 2 FIGURE 7- Continuous Volatile Wiper Write. © 2010 Microchip Technology Inc. Device Memory Command Write “Data” bits Address ...
Page 66
... SDA signal. All signals will be ignored until the next valid Start condition and Control Byte are received. signal TRANSMISSION 2 C © 2010 Microchip Technology Inc. ...
Page 67
... The MCP44XX retains the last “Device Memory Address” that it has received. This is the MCP44XX does not “corrupt” the “Device Memory Address” after Repeated Start or Stop conditions. 2 FIGURE 7- Random Read. © 2010 Microchip Technology Inc. MCP444X/446X Read Data bits ...
Page 68
... The Master Device will Not Acknowledge, and the MCP44XX will release the bus so the Master Device can generate a Stop or Repeated Start condition. 2 FIGURE 7- Continuos Reads. DS22265A-page 68 Read Data bits Read bits Read Data bits Read Data bits STOP bit © 2010 Microchip Technology Inc. ...
Page 69
... Read, or Write). 2 FIGURE 7- Increment Command Sequence. © 2010 Microchip Technology Inc. The advantage of using an Increment Command instead of a read-modify-write series of commands is speed and simplicity. The wiper will transition after each Command Acknowledge when accessing the volatile wiper registers ...
Page 70
... Address Command DECR Command (n-1) DECREMENT OPERATION VS. VOLATILE WIPER VALUE Decrement Wiper (W) Command Properties Operates? Reserved No (Full-Scale (W = A)) Full-Scale ( Yes (Mid-Scale) Yes Zero Scale ( (~8.5V) on the IHH level to the 1st edge IHH signal DECR Command (n-2) © 2010 Microchip Technology Inc. ...
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... TCON1 register not changed (1) 0Bh - 0Eh Reserved 0Fh WP is enabled Reserved addresses: Increment or Decrement commands are invalid for these addresses. Note 1: © 2010 Microchip Technology Inc. MCP444X/446X 7.8.1 SINGLE MODIFY (ENABLE OR DISABLE) WRITE PROTECT OR WIPERLOCK TECHNOLOGY (HIGH VOLTAGE) Figure 7-9 (Disable) and the formats for a single Modify Write Protect or Wiper-Lock Technology command ...
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... I C Disable Command Sequence. Fixed Address Control Byte 2 FIGURE 7-10 Enable Command Sequence. DS22265A-page 72 Write bit Device Variable Memory Address Command (Increment) Address Disable Command Write bit Device Variable Memory Address Command (Decrement) Address Enable Command © 2010 Microchip Technology Inc. ...
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... C 2 FIGURE 8-1: Using the TC1240A to Generate the V Voltage. IHH © 2010 Microchip Technology Inc. MCP444X/446X The circuit in Figure 8-2 MCP402X Nonvolatile Digital Potentiometer Evaluation Board (Part Number: MCP402XEV). This method requires that the system voltage be approximately 5V. This ensures that when the PIC10F206 enters a brown- out condition, there is an insufficient voltage level on the HVC/A0 pin to change the stored value of the wiper ...
Page 74
... This sequence does not effect any other I which may be on the bus, as they should disregard this as an invalid command Interface state state machine Nine bits of ‘1’ Start bit Stop bit Software Reset Sequence bus activity. The 2 C devices © 2010 Microchip Technology Inc. ...
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... C command completed to completing the next I I2CDLY FIGURE 8-6: Example Comparison of “Normal Operation” vs. “General Call Operation” Wiper Updates. © 2010 Microchip Technology Inc. Figure 8-5 shows two I cases, the single I adequate. For applications that do not want all the MCP44XX devices to do General Call support or have a conflict with General Call commands, the multiple I bus configuration would be used ...
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... CALCULATIONS (VOLTAGE OUT Ratio OUT IN 0.70795 0.79433 0.89125 dB CALCULATIONS (RESISTANCE) - CASE 1 Figure 8- CALCULATIONS (RESISTANCE) - CASE 2 to Ground B2GND ( ( B2GND AB B2GND red text. At lower © 2010 Microchip Technology Inc. ...
Page 77
... Attenuation values do not include errors from Digital Potentiometer errors, such as Full Scale Error or Zero Note 1: Scale Error. © 2010 Microchip Technology Inc. MCP444X/446X -2 dB Steps Calculated Desired Wiper Attenuation Attenuation Code Attenuation ( 256 203 -2.015 162 -3.975 128 -6.021 102 -7.993 dB ...
Page 78
... Note 1: Pin 15 (RESET) is the Address A2 (A2) pin on the MCP46x1 device. FIGURE 8-9: Package) vs. Dual Pinout. of providing. Particularly harsh 20 P2A 19 P2W 18 P2B RESET (1) 14 MCP42X1 Pinout WP 12 P0B 12 P0W P0A 11 14 P2W 13 P2B MCP42X2 Pinout P0B 9 P0W 8 P1W Quad Pinout (TSSOP © 2010 Microchip Technology Inc. ...
Page 79
... MCP44X1 MCP46X1 Rheostat Devices MCP46X2 MCP44X2 FIGURE 8-10: Layout to Support Quad and Dual Devices. © 2010 Microchip Technology Inc. MCP444X/446X 8.6.2.3 PCB Area Requirements In some applications, PCB area is a criteria for device selection. Table 8-2 shows the package dimensions and area for the different package options. The table also shows the relative area factor compared to the smallest area ...
Page 80
... Technical Briefs, and Design Guides. some of these documents. Table 9-1. Part # TSSOP20EV MCP46XXDM-PTPLS (2) MCP46XXEV include Application Notes, Table 9-2 shows Supported Devices MCP44XX MCP46XX MCP46X1 Literature # DS01316 DS01080 DS00737 DS00692 DS00691 DS00219 DS22017 DS21825 © 2010 Microchip Technology Inc. ...
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... In the event the full Microchip part number cannot be marked on one line, it will Note: be carried over to the next line, thus limiting the number of available characters for customer-specific information. © 2010 Microchip Technology Inc. MCP444X/446X Example 4462502E 1035 ...
Page 82
... MCP444X/446X Note: DS22265A-page 82 © 2010 Microchip Technology Inc. ...
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... Note: © 2010 Microchip Technology Inc. MCP444X/446X DS22265A-page 83 ...
Page 84
... MCP444X/446X For the most current package drawings, please see the Microchip Packaging Specification located at Note: http://www.microchip.com/packaging DS22265A-page 84 © 2010 Microchip Technology Inc. ...
Page 85
... D TOP VIEW A3 1RWHV © 2010 Microchip Technology Inc. EXPOSED PAD NOTE 1 BOTTOM VIEW A A1 MCP444X/446X PP %RG\ >4) DS22265A-page 85 ...
Page 86
... MCP444X/446X 1RWH DS22265A-page 86 © 2010 Microchip Technology Inc. ...
Page 87
... D N NOTE 1RWHV © 2010 Microchip Technology Inc. MCP444X/446X PP %RG\ >76623 φ L DS22265A-page 87 ...
Page 88
... MCP444X/446X For the most current package drawings, please see the Microchip Packaging Specification located at Note: http://www.microchip.com/packaging DS22265A-page 88 © 2010 Microchip Technology Inc. ...
Page 89
... APPENDIX A: REVISION HISTORY Revision A (September 2010) • Original Release of this Document. © 2010 Microchip Technology Inc. MCP444X/446X DS22265A-page 89 ...
Page 90
... MCP444X/446X NOTES: DS22265A-page 90 © 2010 Microchip Technology Inc. ...
Page 91
... For the MCP444X/446X devices, the analog operation is specified at a minimum of 2.7V. Device testing has Terminal A connected to the device V potentiometer configuration only) and Terminal B connected © 2010 Microchip Technology Inc. MCP444X/446X B.1 Low-Voltage Operation This appendix semiconductor characteristics at lower voltages. This is important ...
Page 92
... This may affect the )/ and R Measurement resistor is a series of 256 R AB Figure B-7. The wiper , V and V ). Temperature also G W WCn resistors WCn , V and V . The wiper switch voltage determines how strongly WCn will be high will be in the typical range. W © 2010 Microchip Technology Inc ...
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... WCn FIGURE B-7: Wiper Switch. © 2010 Microchip Technology Inc. So looking at the wiper voltage (V 3.0V and 1.8V data gives the graphs in Figure B-9. In the 1.8V graph, as the V 0.8V, the voltage increases nonlinearly. Since and the current (I device resistance increased nonlinearly at around wiper code 160 ...
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... NMOS and PMOS , R ) and NMOS PMOS ) VS NMOS PMOS R W 0.6 1.2 1.8 2.4 3.0 V Voltage IN NMOS and PMOS , R ) and NMOS PMOS ) VS NMOS PMOS R W 0.3 0.6 0.9 1.2 1.5 1.8 V Voltage IN NMOS and PMOS , R ) and NMOS PMOS ) VS © 2010 Microchip Technology Inc. ...
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... DD DD range. With respect to the voltages on the resistor network node, at 1.8V the V voltage would range from W 0.29V to 0.38V. These voltages cause the wiper resistance the linear region (see © 2010 Microchip Technology Inc Let’s say OUT to 0 FIGURE B-15: ...
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... EXAMPLE #2 VOLTAGE CALCULATIONS Variation Min Typ R1 10,000 10,000 R2 10,000 10,000 R (max) 8,000 10,000 FS) 0.667 V 0.643 V OUT ZS) 0.50 V 0.50 V OUT FS) 0.333 V 0.286 ZS Legend: FS – Full Scale, ZS – Zero Scale DS22265A-page 96 Max 10,000 10,000 12,000 0.687 0.375 © 2010 Microchip Technology Inc. ...
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... MCP4442T-104E/XX: T/R, 100 kΩ, a) MCP4461-502E/XX: b) MCP4461T-502E/XX: T/R, 5 kΩ, 20-LD Device c) MCP4461-103E/XX: d) MCP4461T-103E/XX: T/R, 10 kΩ, 20-LD Device e) MCP4461-503E/XX: f) MCP4461T-503E/XX: T/R, 50 kΩ, 20-LD Device g) MCP4461-104E/XX: h) MCP4461T-104E/XX: T/R, 100 kΩ, a) MCP4462-502E/XX: b) MCP4462T-502E/XX: T/R, 5 kΩ, 14-LD Device c) MCP4462-103E/XX: d) MCP4462T-103E/XX: T/R, 10 kΩ, 14-LD Device ...
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... MCP444X/446X NOTES: DS22265A-page 98 © 2010 Microchip Technology Inc. ...
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... PICtail, REAL ICE, rfLAB, Select Mode, Total Endurance, TSHARC, UniWinDriver, WiperLock and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. ...
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... Philippines - Manila Tel: 63-2-634-9065 Fax: 63-2-634-9069 Singapore Tel: 65-6334-8870 Fax: 65-6334-8850 Taiwan - Hsin Chu Tel: 886-3-6578-300 Fax: 886-3-6578-370 Taiwan - Kaohsiung Tel: 886-7-213-7830 Fax: 886-7-330-9305 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350 © 2010 Microchip Technology Inc. 08/04/10 ...