MCP454X/456X/464X/466X 2 7/8-Bit Single/Dual I C Digital POT with Nonvolatile Memory Features Description Single or Dual Resistor Network Options The MCP45XX and MCP46XX devices offer a wide 2 Potentiometer or Rheostat Configuration Options range of product offerings using an I C interface. This Resistor Network Resolution family of devices support 7-bit and 8-bit resistor - 7-bit: 128 Resistors (129 Steps) networks, nonvolatile memory configurations, and - 8-bit: 256 Resistors (257 Steps) Potentiometer and Rheostat pinouts. R Resistances Options of: AB WiperLock Technology allows application-specific -5k calibration settings to be secured in the EEPROM. -10k -50k Package Types (top view) -100k MCP45X1 MCP45X2 Zero-Scale to Full-Scale Wiper Operation Single Potentiometer Single Rheostat Low Wiper Resistance: 75 (typical) Low Tempco: V HVC / A0 1 8 DD HVC / A0 1 8 V DD - Absolute (Rheostat): 50 ppm typical SCL 7 P0B SCL 7 A1 2 2 (0C to 70C) SDA 3 6 P0W SDA 3 6 P0B V 45 P0A V 45 P0W - Ratiometric (Potentiometer): 15 ppm typical SS SS Nonvolatile Memory MSOP MSOP - Automatic Recall of Saved Wiper Setting - WiperLock Technology HVC / A0 1 8 V HVC / A0 1 8 V DD DD - 10 General Purpose Memory Locations SCL P0B SCL A1 2 7 2 7 EP EP 2 I C Serial Interface 9 9 SDA P0W SDA P0B 3 6 3 6 - 100 kHz, 400 kHz and 3.4 MHz Support V P0A V P0W 4 5 4 5 SS SS Serial Protocol Allows: DFN 3x3 (MF) * DFN 3x3 (MF) * - High-Speed Read/Write to Wiper - Read/Write to EEPROM MCP46X1 Dual Potentiometers - Write Protect to be Enabled/Disabled V HVC/A0 1 14 DD - WiperLock to be Enabled/Disabled A1 13 SCL 2 Resistor Network Terminal Disconnect Feature SDA 12 A2 3 via the Terminal Control (TCON) Register V 11 WP 4 SS 16 15 14 13 P0B P1B 5 10 SCL 1 12 WP Write Protect Feature: P1W P0W 6 9 SDA NC 2 11 - Hardware Write Protect (WP) Control Pin EP P0A P1A 7 8 17 P0B V 3 10 - Software Write Protect (WP) Configuration Bit SS TSSOP V 4 P0W 9 SS Brown-out Reset Protection (1.5V typical) 56 7 8 Serial Interface Inactive Current (2.5 uA typical) High-Voltage Tolerant Digital Inputs: Up to 12.5V Wide Operating Voltage: QFN-16 4x4 (ML) * - 2.7V to 5.5V - Device Characteristics Specified - 1.8V to 5.5V - Device Operation MCP46X2 Dual Rheostat Wide Bandwidth (-3dB) Operation: HVC / A0 1 10 V - 2 MHz (typ.) for 5.0 k Device V DD HVC/A0 1 10 DD 9 A1 SCL 2 Extended Temperature Range (-40C to +125C) SCL 2 9 A1 SDA P0B 3 8 EP SDA 3 8 P0B P0W V 4 7 11 SS V 4 7 P0W P1W SS P1B 5 6 P1B 5 6 P1W MSOP DFN 3x3 (MF) * * Includes Exposed Thermal Pad (EP) see Table 3-1. 2008-2013 Microchip Technology Inc. DS22107B-page 1 P1B HVC/A0 P1W V DD P1A A1 A2 P0AMCP454X/456X/464X/466X Device Block Diagram V Power-up/ P0A DD Resistor Brown-out Network 0 V SS Control (Pot 0) P0W 2 Wiper 0 A2 I C Serial & TCON Interface A1 Register Module & P0B HVC/A0 Control SCL Logic (WiperLock SDA 2 P1A I C Interface Resistor Technology) Network 1 WP (Pot 1) P1W Wiper 1 Memory (16x9) & TCON Wiper0 (V & NV) Register P1B Wiper1 (V & NV) TCON For Dual Resistor Network STATUS Devices Only Data EEPROM (10 x 9-bits) Device Features Resistance (typical) V DD Wiper Wiper Device Operating Configuration (2) R Options (k ) - R Range AB W ( ) (3) (1) 2 MCP4531 1 Potentiometer I C RAM No Mid-Scale 5.0, 10.0, 50.0, 100.0 75 129 1.8V to 5.5V (3) 2 MCP4532 1 Rheostat I C RAM No Mid-Scale 5.0, 10.0, 50.0, 100.0 75 129 1.8V to 5.5V (1) 2 MCP4541 1 Potentiometer I C EE Yes NV Wiper 5.0, 10.0, 50.0, 100.0 75 129 2.7V to 5.5V 2 MCP4542 1 Rheostat I C EE Yes NV Wiper 5.0, 10.0, 50.0, 100.0 75 129 2.7V to 5.5V (3) (1) 2 MCP4551 1 Potentiometer I C RAM No Mid-Scale 5.0, 10.0, 50.0, 100.0 75 257 1.8V to 5.5V (3) 2 MCP4552 1 Rheostat I C RAM No Mid-Scale 5.0, 10.0, 50.0, 100.0 75 257 1.8V to 5.5V (1) 2 MCP4561 1 Potentiometer I C EE Yes NV Wiper 5.0, 10.0, 50.0, 100.0 75 257 2.7V to 5.5V 2 MCP4562 1 Rheostat I C EE Yes NV Wiper 5.0, 10.0, 50.0, 100.0 75 257 2.7V to 5.5V (3) (1) 2 MCP4631 2 Potentiometer I C RAM No Mid-Scale 5.0, 10.0, 50.0, 100.0 75 129 1.8V to 5.5V (3) 2 MCP4632 2 Rheostat I C RAM No Mid-Scale 5.0, 10.0, 50.0, 100.0 75 129 1.8V to 5.5V (1) 2 MCP4641 2 Potentiometer I C EE Yes NV Wiper 5.0, 10.0, 50.0, 100.0 75 129 2.7V to 5.5V 2 MCP4642 2 Rheostat I C EE Yes NV Wiper 5.0, 10.0, 50.0, 100.0 75 129 2.7V to 5.5V (3) (1) 2 MCP4651 2 Potentiometer I C RAM No Mid-Scale 5.0, 10.0, 50.0, 100.0 75 257 1.8V to 5.5V (3) 2 MCP4652 2 Rheostat I C RAM No Mid-Scale 5.0, 10.0, 50.0, 100.0 75 257 1.8V to 5.5V (1) 2 MCP4661 2 Potentiometer I C EE Yes NV Wiper 5.0, 10.0, 50.0, 100.0 75 257 2.7V to 5.5V 2 MCP4662 2 Rheostat I C 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 DS22107B-page 2 2008-2013 Microchip Technology Inc. of POTs Control Interface Memory Type WiperLock Technology POR Wiper Setting of Steps