MCP413X/415X/423X/425X 7/8-Bit Single/Dual SPI Digital POT with Volatile Memory Features Description Single or Dual Resistor Network options The MCP41XX and MCP42XX devices offer a wide range of product offerings using an SPI interface. This Potentiometer or Rheostat configuration options family of devices support 7-bit and 8-bit resistor Resistor Network Resolution networks, and Potentiometer and Rheostat pinouts. - 7-bit: 128 Resistors (129 Steps) - 8-bit: 256 Resistors (257 Steps) Package Types Resistances options of: R AB MCP41X1 MCP41X2 -5k Single Potentiometer Single Rheostat -10k CS 1 V CS 1 V 8 8 DD DD -50k SCK 7 P0B SCK 7 SDO 2 2 SDI/SDO 3 6 P0W SDI 3 6 P0B - 100 k V 4 5 P0A V 4 5 P0W SS SS Zero Scale to Full Scale Wiper operation PDIP, SOIC, MSOP, PDIP, SOIC, MSOP, Low Wiper Resistance: 75 (typ.) 3x3 DFN 3x3 DFN Low Tempco: MCP42X1 Dual Potentiometers - Absolute (Rheostat): 50 ppm typical V (0C to 70C) CS 14 1 DD SDO SCK 13 2 - Ratiometric (Potentiometer): 15 ppm typical SDI 12 SHDN 3 SPI Serial Interface (10 MHz, modes 0,0 & 1,1) V 11 NC SS 4 P0B P1B 5 10 - High-Speed Read/Writes to wiper registers P1W 9 P0W 6 - SDI/SDO multiplexing (MCP41X1 only) P0A P1A 8 7 Resistor Network Terminal Disconnect Feature PDIP, SOIC, TSSOP via: ) - Shutdown pin (SHDN - Terminal Control (TCON) Register Brown-out reset protection (1.5V typical) 13 15 14 16 SCK 12 1 NC Serial Interface Inactive current (2.5 uA typ.) 11 NC SDI 2 High-Voltage Tolerant Digital Inputs: Up to 12.5V P0B V 3 10 SS Supports Split Rail Applications V 9 P0W 4 SS Internal weak pull-up on all digital inputs 78 5 6 Wide Operating Voltage: - 2.7V to 5.5V - Device Characteristics Specified 4x4 QFN - 1.8V to 5.5V - Device Operation MCP42X2 Dual Rheostat Wide Bandwidth (-3 dB) Operation: CS 1 10 V DD - 2 MHz (typ.) for 5.0 k device SCK 9 SDO 2 SDI 8 P0B 3 Extended temperature range (-40C to +125C) V 4 7 P0W SS P1W P1B 5 6 MSOP, DFN 2007 Microchip Technology Inc. DS22060A-page 1 P1B CS P1W V DD P1A SDO P0A SHDNMCP413X/415X/423X/425X Device Block Diagram V Power-up/ P0A DD Resistor Brown-out Network 0 V SS Control (Pot 0) P0W Wiper 0 CS SPI Serial & TCON Interface SCK Register Module & P0B SDI Control SDO Logic (WiperLock P1A Resistor Technology) NC Network 1 SHDN (Pot 1) P1W For Dual Potentiometer Wiper 1 Devices Only Memory (4x9) & TCON Wiper0 Register P1B Wiper1 TCON For Dual Resistor Network STATUS Devices Only Device Features Resistance (typical) V DD Wiper Wiper Device Operating Configuration (2) R Options (k) - R Range AB W () (3) (1) MCP4131 1 Potentiometer SPI RAM No Mid-Scale 5.0, 10.0, 50.0, 100.0 75 129 1.8V to 5.5V (3) MCP4132 1 Rheostat SPI RAM No Mid-Scale 5.0, 10.0, 50.0, 100.0 75 129 1.8V to 5.5V (1) MCP4141 1 Potentiometer SPI EE Yes NV Wiper 5.0, 10.0, 50.0, 100.0 75 129 2.7V to 5.5V MCP4142 1 Rheostat SPI EE Yes NV Wiper 5.0, 10.0, 50.0, 100.0 75 129 2.7V to 5.5V (3) (1) MCP4151 1 Potentiometer SPI RAM No Mid-Scale 5.0, 10.0, 50.0, 100.0 75 257 1.8V to 5.5V (3) MCP4152 1 Rheostat SPI RAM No Mid-Scale 5.0, 10.0, 50.0, 100.0 75 257 1.8V to 5.5V (1) MCP4161 1 Potentiometer SPI EE Yes NV Wiper 5.0, 10.0, 50.0, 100.0 75 257 2.7V to 5.5V MCP4162 1 Rheostat SPI EE Yes NV Wiper 5.0, 10.0, 50.0, 100.0 75 257 2.7V to 5.5V (3) (1) MCP4231 2 Potentiometer SPI RAM No Mid-Scale 5.0, 10.0, 50.0, 100.0 75 129 1.8V to 5.5V (3) MCP4232 2 Rheostat SPI RAM No Mid-Scale 5.0, 10.0, 50.0, 100.0 75 129 1.8V to 5.5V (1) MCP4241 2 Potentiometer SPI EE Yes NV Wiper 5.0, 10.0, 50.0, 100.0 75 129 2.7V to 5.5V MCP4242 2 Rheostat SPI EE Yes NV Wiper 5.0, 10.0, 50.0, 100.0 75 129 2.7V to 5.5V (3) (1) MCP4251 2 Potentiometer SPI RAM No Mid-Scale 5.0, 10.0, 50.0, 100.0 75 257 1.8V to 5.5V (3) MCP4252 2 Rheostat SPI RAM No Mid-Scale 5.0, 10.0, 50.0, 100.0 75 257 1.8V to 5.5V (1) MCP4261 2 Potentiometer SPI EE Yes NV Wiper 5.0, 10.0, 50.0, 100.0 75 257 2.7V to 5.5V MCP4262 2 Rheostat SPI EE Yes NV Wiper 5.0, 10.0, 50.0, 100.0 75 257 2.7V to 5.5V Note 1: Floating either terminal (A or B) allows the device to be used as a Rheostat (variable resistor). 2: Analog characteristics only tested from 2.7V to 5.5V unless otherwise noted. 3: Please check Microchip web site for device release and availability. DS22060A-page 2 2007 Microchip Technology Inc. of POTs Control Interface Memory Type WiperLock Technology POR Wiper Setting of Steps