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 (top view) Resistances options of: R AB -5k MCP41X1 MCP41X2 -10k Single Potentiometer Single Rheostat -50k CS 1 V CS 1 V 8 8 DD DD SCK 7 P0B SCK 7 SDO 2 2 - 100 k SDI/SDO 3 6 P0W SDI 3 6 P0B Zero Scale to Full-Scale Wiper operation V 4 5 P0A V 4 5 P0W SS SS Low Wiper Resistance: 75 (typical) PDIP, SOIC, MSOP PDIP, SOIC, MSOP Low Tempco: - Absolute (Rheostat): 50 ppm typical CS 1 8 V CS 1 8 V DD DD (0C to 70C) SCK 2 7 P0B SCK 2 7 SDO EP EP - Ratiometric (Potentiometer): 15 ppm typical 9 9 SDI/SDO 3 6 P0W SDI 3 6 P0B SPI Serial Interface (10 MHz, modes 0,0 & 1,1) V P0A V P0W 4 5 4 5 SS SS - High-Speed Read/Writes to wiper registers 3x3 DFN* 3x3 DFN* - SDI/SDO multiplexing (MCP41X1 only) Resistor Network Terminal Disconnect Feature via: MCP42X1 Dual Potentiometers ) - Shutdown pin (SHDN - Terminal Control (TCON) Register 16 15 14 13 Brown-out reset protection (1.5V typical) V CS 1 14 DD SCK WP 13 SDO 1 12 SCK 2 Serial Interface Inactive current (2.5 uA typical) SDI 12 SHDN 3 SDI NC 2 11 EP High-Voltage Tolerant Digital Inputs: Up to 12.5V V 11 WP 4 SS 17 V P0B P0B 3 10 Supports Split Rail Applications P1B 5 10 SS P1W P0W 6 9 V P0W 4 9 SS Internal weak pull-up on all digital inputs P0A P1A 7 8 56 7 8 Wide Operating Voltage: PDIP, SOIC, TSSOP - 2.7V to 5.5V - Device Characteristics Specified 4x4 QFN* - 1.8V to 5.5V - Device Operation Wide Bandwidth (-3 dB) Operation: MCP42X2 Dual Rheostat - 2 MHz (typical) for 5.0 k device CS V 1 10 DD CS 10 V 1 DD Extended temperature range (-40C to +125C) 9 SDO SCK 2 SCK SDO 2 9 8 P0B EP SDI 3 SDI P0B 3 8 V 7 P0W 11 4 SS P1W P1B 5 6 V 4 7 P0W SS 6 P1W P1B 5 MSOP, DFN 3x3 DFN* * Includes Exposed Thermal Pad (EP) see Table 3-1. 2008 Microchip Technology Inc. DS22060B-page 1 P1B CS P1W V DD P1A SDO SHDN P0AMCP413X/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. DS22060B-page 2 2008 Microchip Technology Inc. of POTs Control Interface Memory Type WiperLock Technology POR Wiper Setting of Steps