MCP79402T-I/ST Microchip Technology, MCP79402T-I/ST Datasheet
MCP79402T-I/ST
Specifications of MCP79402T-I/ST
Related parts for MCP79402T-I/ST
MCP79402T-I/ST Summary of contents
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... Million Erase/Write Cycles for Unique ID • Packages include 8-Lead SOIC, TSSOP, 2x3 TDFN, MSOP • Pb-Free and RoHS Compliant • Temperature Ranges: - Industrial (I): -40°C to +85°C 2011 Microchip Technology Inc. MCP79400/MCP79401/MCP79402 and Battery Switchover Description: The MCP7940X series of low-power Real-Time Clocks Unique ID ...
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... DS25009B-page MFP 2 I C™ SCL SDA SYSTEM Note MFP SCL BAT SDA SS Suggested Values: C1 100nF CX1, CX2 See Text C2 100pF R1 R2 Schottky BAT Backup Supply X1 32.768 kHz Crystal (See Text MFP SCL SDA 10K 2.2K 1K 2011 Microchip Technology Inc. ...
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... Voltage Range BAT BAT (Note 1) D16 COSC Oscillator Pin Capacitance Note 1: This parameter is periodically sampled and not 100% tested. 2: Standby with oscillator running. 2011 Microchip Technology Inc. Electrical Characteristics: Industrial (I +1.8V to 5.5V CC Min. Typ. Max. Units — — — 0.7 V — ...
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... V 5.5V CC 1.8V V < 2.5V CC 2.5V V 5.5V CC 1.8V V < 2.5V CC 2.5V V 5.5V CC 1.8V V < 2.5V CC 2.5V V 5.5V CC (Note 1 and Note 2) — = 5.5V Page mode CC (Note 3) 2011 Microchip Technology Inc. ...
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... FIGURE 1-2: BUS TIMING DATA 5 SCL 7 3 SDA SDA Out 2011 Microchip Technology Inc MCP7940X DS25009B-page 5 ...
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... X1, X2 External Crystal Pins. 2.4 MFP Open drain pin used for alarm and clock-out. 2.5 V BAT Input for backup supply to maintain RTCC and SRAM during the time when V is below V CC TRIP DS25009B-page 6 Table 2-1. . 2011 Microchip Technology Inc. ...
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... SCL SDA Start Condition 2011 Microchip Technology Inc. 3.1.1.4 Data Valid (D) The state of the data line represents valid data when, after a Start condition, the data line is stable for the duration of the high period of the clock signal. The data on the line must be changed during the low period of the clock signal ...
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... ADDRESS BYTE R/W X • • • Data from transmitter Receiver must release the SDA line at this point so the Transmitter can continue sending data. (Figure 3-3). The upper address bits are Upon receiving an ‘1010111’ • • • 0 2011 Microchip Technology Inc. or ...
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... See Figure 3-4 for the flow diagram. FIGURE 3-4: ACKNOWLEDGE POLLING FLOW Send ID Write Command Send Stop Condition to Initiate ID Write Cycle Send Start Send Control Byte with R Did Device Acknowledge (ACK = 0)? YES Next Operation 2011 Microchip Technology Inc. NO MCP7940X DS25009B-page 9 ...
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... The detailed memory map is shown in DS25009B-page 10 FIGURE 4-1: 0x00 0x06 0x07 0x09 0x0A 0x10 0x11 0x17 0x18 0x1F 0x20 0x5F 0x60 0xFF Table 4-1. MEMORY MAP Time and Date Configuration and Calibration Alarm 0 Alarm 1 Time-Stamp SRAM (64 Bytes) 2011 Microchip Technology Inc. ...
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... Minutes 19h 10 Hour 12/24 AM/PM 1Ah 10 Date 1Bh Day 1Ch 10 Minutes 1Dh 10 Hour 12/24 AM/PM 1Eh 10 Date 1Fh Day 2011 Microchip Technology Inc. Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Seconds Minutes 10 Hour Hour V VBATEN Day BAT Date 10 Month Month Year ALM0 ...
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... MFP when used for alarms is the inverse of ALM1POL. • ALMxIF: This is the Alarm Interrupt Fag. This bit is set in hardware if the alarm was triggered. The bit is cleared in software. Section 4.2.2 “Calibra- process is fully detailed in Sequence”. 2011 Microchip Technology Inc. ...
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... BAT software. Note strongly recommended that the timesaver function only be used when the oscillator is running. This will ensure accurate functionality. 2011 Microchip Technology Inc. 4.2 FEATURES 4.2.1 UNLOCK SEQUENCE The unique ID location is user accessible by using the unlock ID sequence. The unique ID location is 64-bits (8 bytes) and is stored in EEPROM locations 0xF0 to 0xF7 ...
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... Calibration register. The MFP waveform will appear as: Delay RS0 Output Signal 32768 (32768 +/- (2 * CALREG)) T input = clock period of MFP output signal = clock period of input signal = decimal value of Calibration register setting and the sign is determined by the MSB of Calibration register. 2011 Microchip Technology Inc. ...
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... MSB of the Calibration register. Since the calibration is done every cycle, the frequency of the output MFP waveform is constant. 2011 Microchip Technology Inc. 4.2.3 MFP Pin multi-function pin and supports the following functions: • Use of the OUT bit in the Control register for single bit I/O • ...
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... Please also consult with the crystal specification to observe correct handling and reflow conditions and for information on ideal capacitor values. For more information please see AN1365, “RTCC Best Practices Application Note” (DS01365). 2011 Microchip Technology Inc. CX2 Value 12pF 8 pF www/microchip.com/ ...
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... V TRIP(max) V TRIP(min) Power-Down Time-Stamp 2011 Microchip Technology Inc. • The first set, located at 0x18h through 0x1Bh, is loaded at the time when V and the RTCC operates on the V (register 0x03h bit 4) bit is also set at this time. voltage and is • The second set of registers, located at 0x1Ch ...
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... CONTROL ADDRESS A BYTE BYTE ADDRESS BYTE DATA BYTE Note: Entering an address past 5F for an SRAM operation will result in the MCP7940X not acknowledging the address. . BAT supply is present and BAT supply for retention. BAT S T DATA DATA BYTE 2011 Microchip Technology Inc. ...
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... After a Byte Write command, the internal address counter will point to the address location following the one that was just written. Note: Addressing undefined ID locations will result in the MCP7940X not acknowledg- ing the address. 2011 Microchip Technology Inc. MCP7940X MCP7940X DS25009B-page 19 ...
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... This Address Pointer allows the entire memory contents to be serially read during one operation. The internal Address Pointer will automatically roll over to the start of the block. S DATA T BYTE O P • • • DATA (Figure 5-5). After a random read 2011 Microchip Technology Inc. ...
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... The unique ID area is protected to prevent unintended writes to these locations. The unlock sequence is detailed in Section 4.2.1 “Unlock Sequence”. The unique ID can be factory programmed on some devices to provide a unique IEEE EUI-48 or EUI-64 value. In addition, customer-provided codes can also be programmed. 2011 Microchip Technology Inc ADDRESS CONTROL A BYTE BYTE R ...
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... DS25009B-page 22 Example: 79400I Example: Example: Example: 1st Line Marking Codes TSSOP MSOP TDFN 9400 79400T AAS 9401 79401T AAT 9402 79402T AAU 1133 13F 9400 I133 13F 79401I 13313F AAS 133 2011 Microchip Technology Inc. ...
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... Microchip Technology Inc. MCP7940X DS25009B-page 23 ...
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... MCP7940X DS25009B-page 24 2011 Microchip Technology Inc. ...
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... Microchip Technology Inc. MCP7940X DS25009B-page 25 ...
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... MCP7940X D N NOTE DS25009B-page φ L 2011 Microchip Technology Inc. ...
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... Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging 2011 Microchip Technology Inc. MCP7940X DS25009B-page 27 ...
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... MCP7940X D N NOTE DS25009B-page φ L 2011 Microchip Technology Inc. ...
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... Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging 2011 Microchip Technology Inc. MCP7940X DS25009B-page 29 ...
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... MCP7940X DS25009B-page 30 2011 Microchip Technology Inc. ...
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... Microchip Technology Inc. MCP7940X DS25009B-page 31 ...
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... MCP7940X DS25009B-page 32 2011 Microchip Technology Inc. ...
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... APPENDIX A: REVISION HISTORY Revision A (04/2011) Original release of this document. Revision B (08/2011) Added Figure 1-2; Added Parameter D16 to Table 1-1; Added Sections 2.3-2.5; Added Figure 4.1; Revised Section 4.1.1; Revised Sections 4.2.4-4.2.6. 2011 Microchip Technology Inc. MCP7940X DS25009B-page 33 ...
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... MCP7940X NOTES: DS25009B-page 34 2011 Microchip Technology Inc. ...
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... To register, access the Microchip web site at www.microchip.com. Under “Support”, “Customer Change Notification” and follow the registration instructions. 2011 Microchip Technology Inc. CUSTOMER SUPPORT Users of Microchip products can receive assistance through several channels: • Distributor or Representative • Local Sales Office ...
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... What deletions from the document could be made without affecting the overall usefulness there any incorrect or misleading information (what and where)? 7. How would you improve this document? DS25009B-page 36 FAX: (______) _________ - _________ N Total Pages Sent ________ DS25009B Literature Number: 2011 Microchip Technology Inc. ...
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... Device: MCP79400 = 1.8V - 5.5V I MCP79400T = 1.8V - 5.5V I (Tape and Reel) MCP79401 = 1.8V - 5.5V I MCP79401T = 1.8V - 5.5V I (Tape and Reel) MCP79402 = 1.8V - 5.5V I MCP79402T = 1.8V - 5.5V I (Tape and Reel) Temperature I = -40°C to +85°C Range: Package 8-Lead Plastic Small Outline (3.90 mm body) ST ...
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... MCP7940X NOTES: DS25009B-page 38 2011 Microchip Technology Inc. ...
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... 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. © 2011, Microchip Technology Incorporated, Printed in the U ...
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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: 886-3-5778-366 Fax: 886-3-5770-955 Taiwan - Kaohsiung Tel: 886-7-536-4818 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 2011 Microchip Technology Inc. 08/02/11 ...