MCP4461T-502E/ML Microchip Technology, MCP4461T-502E/ML Datasheet - Page 67

• Manufacturer Part Number: MCP4461T-502E/ML
• Description: IC DGTL POT 257TAPS 5K 20QFN
• Manufacturer: Microchip Technology

Specifications of MCP4461T-502E/ML

• Package / Case: 20-VFQFN Exposed Pad
• Temperature Coefficient: 150 ppm/°C Typical
• Taps: 257
• Resistance (ohms): 5K
• Number Of Circuits: 4
• Memory Type: Non-Volatile
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Number Of Pots: Quad
• Taps Per Pot: 257
• Resistance: 5 KOhms
• Wiper Memory: Non Volatile
• Buffered Wiper: Buffered
• Digital Interface: I2C
• Operating Supply Voltage: 2.7 V to 5.5 V
• Supply Current: 600 uA
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Description/function: Quad I2C Digital POT with Nonvolatile Memory
• Mounting Style: SMD/SMT
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.7 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

FIGURE 7-4:
FIGURE 7-5:
© 2010 Microchip Technology Inc.
S
Note 1: Master Device is responsible for A / A signal. If a A signal occurs, the MCP44XX will abort this
Note 1: Master Device is responsible for A / A signal. If a A signal occurs, the MCP44XX will abort this
0 1 0
0 1 0
Fixed
Address
S
2: The Master Device will Not Acknowledge, and the MCP44XX will release the bus so the
3: The MCP44XX retains the last “Device Memory Address” that it has received. This is the
4: The Device Memory Address pointer defaults to 00h on POR and BOR conditions.
2: The Master Device will Not Acknowledge, and the MCP44XX will release the bus so the Mas-
3: The MCP44XX retains the last “Device Memory Address” that it has received. This is the
0 1 0
Control Byte
Fixed
Address
transfer and release the bus.
Master Device can generate a Stop or Repeated Start condition.
MCP44XX does not “corrupt” the “Device Memory Address” after Repeated Start or Stop
conditions.
transfer and release the bus.
ter Device can generate a Stop or Repeated Start condition.
MCP44XX does not “corrupt” the “Device Memory Address” after Repeated Start or Stop
conditions.
Control Byte
1
I
Control Byte
1
I
2
2
C Read (Last Memory Address Accessed).
C Random Read.
1 A1 A0 1 A
1 A1 A0 1
1
Variable
Address
1 A1 A0 0
Variable
Address
Read bit
Read bit
A
Write bit
0
0
A
0
0 0
AD AD AD AD
3
0
Device
Memory
Address
2
READ Command
0
0
1
0
0
0
0
0
Command
1
0 D8 A
0 D8 A
1
Read bits
x X A Sr
Read bits
1
1
D7 D6 D5 D4
Read Data bits
D7 D6 D5 D4
Read Data bits
MCP444X/446X
Repeated Start bit
D3
D3
D2 D1 D0 A
D2 D1 D0 A
DS22265A-page 67
STOP bit
STOP bit
2
2
P
P