MCP4351-103E/ST Microchip

MCP433X/435X 7/8-Bit Quad SPI Digital POT with Volatile Memory Package Types (Top View) Features Quad Resistor Network MCP43X1 Quad Potentiometers TSSOP Potentiometer or Rheostat Configuration Options P2A P3A 1 20 Resistor Network Resolution: P2W P3W 2 19 - 7-bit: 128 Resistors (129 Taps) P2B P3B 3 18 V - 8-bit: 256 Resistors (257 Taps) CS 4 17 DD SDO 16 SCK 5 R Resistances Options of: AB SDI 15 RESET 6 -5k V 7 14 NC SS P0B P1B 8 13 -10k P1W 12 P0W 9 -50k P0A P1A 10 11 -100k Zero Scale to Full Scale Wiper Operation MCP43X1 Quad Potentiometers Low Wiper Resistance: 75 (typical) 4x4 QFN* Low Tempco: - Absolute (Rheostat): 50 ppm typical (0C to 70C) 19 18 17 16 20 - Ratiometric (Potentiometer): 15 ppm typical 15 V DD P3B 1 SPI Serial Interface (10 MHz, Modes 0,0 and 1,1): 14 SDO CS 2 - High-Speed Read/Writes to wiper registers 13 RESET EP SCK 3 Resistor Network Terminal Disconnect Feature 21 NC 12 SDI 4 via Terminal Control (TCON) Register P0B 11 V 5 Reset Input Pin SS Brown-out Reset Protection (1.5V typical) 89 10 67 Serial Interface Inactive Current (2.5 A typical) High-Voltage Tolerant Digital Inputs: Up to 12.5V Supports Split Rail Applications Internal Weak Pull-up on all Digital Inputs MCP43X2 Quad Rheostat Wide Operating Voltage: TSSOP - 2.7V to 5.5V Device Characteristics P3W P2W 1 14 Specified 13 P2B P3B 2 12 V - 1.8V to 5.5V Device Operation 3 CS DD 11 4 SDO SCK Wide Bandwidth (-3 dB) Operation: SDI 5 10 P0B - 2 MHz (typical) for 5.0 k device V 6 9 P0W SS 7 8 P1W P1B Extended Temperature Range (-40C to +125C) * Includes Exposed Thermal Pad (EP) see Table 3-1. 2010 Microchip Technology Inc. DS22242A-page 1 P1B P3W P3A P1W P1A P2A P0A P2W P0W P2BMCP433X/435X Device Block Diagram V Power-up/ P0A DD Resistor Brown-out Network 0 V SS Control (Pot 0) P0W Wiper 0 CS SPI Serial and TCON0 Interface SCK Register Module and P0B SDI Control SDO Logic P1A RESET Resistor Network 1 (Pot 1) Memory (16x9) P1W Wiper 1 Wiper0 (V) and TCON0 Wiper1 (V) Register Wiper2 (V) P1B Wiper3 (V) TCON0 P2A Resistor TCON1 Network 2 (Pot 2) P2W Wiper 2 and TCON1 Register P2B P3A Resistor Network 3 (Pot 3) P3W Wiper 3 and TCON1 Register P3B Device Features Resistance (typical) V DD Wiper Wiper Device Operating Configuration (2) R Options (k ) - R Range AB W ( ) (1) MCP4331 4 Potentiometer SPI RAM No Mid-Scale 5.0, 10.0, 50.0, 100.0 75 129 1.8V to 5.5V MCP4332 4 Rheostat SPI RAM No Mid-Scale 5.0, 10.0, 50.0, 100.0 75 129 1.8V to 5.5V (1) MCP4341 4 Potentiometer SPI EE Yes NV Wiper 5.0, 10.0, 50.0, 100.0 75 129 2.7V to 5.5V MCP4342 4 Rheostat SPI EE Yes NV Wiper 5.0, 10.0, 50.0, 100.0 75 129 2.7V to 5.5V (1) MCP4351 4 Potentiometer SPI RAM No Mid-Scale 5.0, 10.0, 50.0, 100.0 75 257 1.8V to 5.5V MCP4352 4 Rheostat SPI RAM No Mid-Scale 5.0, 10.0, 50.0, 100.0 75 257 1.8V to 5.5V (1) MCP4361 4 Potentiometer SPI EE Yes NV Wiper 5.0, 10.0, 50.0, 100.0 75 257 2.7V to 5.5V MCP4362 4 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. DS22242A-page 2 2010 Microchip Technology Inc. of POTs Control Interface Memory Type WiperLock Technology POR Wiper Setting of Taps