MCP4431-104E/ML Microchip Technology, MCP4431-104E/ML Datasheet - Page 10

• Manufacturer Part Number: MCP4431-104E/ML
• Description: IC POT 100K QUAD 7BIT 20QFN
• Manufacturer: Microchip Technology

Specifications of MCP4431-104E/ML

• Package / Case: 20-VFQFN Exposed Pad
• Resistance (ohms): 100K
• Taps: 129
• Number Of Circuits: 4
• Temperature Coefficient: *
• Memory Type: Volatile
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 1.8 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Number Of Pots: Quad
• Taps Per Pot: 129
• Resistance: 100 KOhms
• Wiper Memory: Volatile
• Digital Interface: I2C
• Operating Supply Voltage: 1.8 V to 5.5 V
• Supply Current: 600 uA
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 1.8 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

I
The I
drivers are open drain. This protocol supports reads and
writes using only the interface’s two wires. The I
allows multiple devices on the I
has a unique device address. The I
host controller firmware overhead than the SPI protocol, but
requires less hardware resources (2 pins vs. 3 or 4 pins).
The I
the need to increase the number of I/O pins dedicated by the
master controller. The typical I
of the Microchip digital potentiometer devices support high
voltage commands. This function requires an additional host
controller output pin.
Many microcontrollers offer this interface as a dedicated
hardware module, which eases the software requirement of
the protocol.
High voltage commands require the HVC/A0 pin forced to
the V
WiperLock Technology bit can be enabled and disabled.
Controller to Multiple Peripherals (Multiple Chip Selects)
Digital Potentiometer Solutions
2
C™ Interface
10
2
2
IHH
C interface is a two wire interface, where the output
C protocol allows many devices on the I
voltage, instead of the V
Digital Potentiometer Design Guide
2
C interface is shown. Several
2
C bus, where each device
IL
voltage. In this state, the
2
C protocol requires more
2
C bus without
2
C protocol
Controller to Single Peripheral