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 2008-2013 Microchip Technology Inc. DS22096B-page 1

MCP453X/455X/463X/465X

Features:

• Single or Dual Resistor Network Options

• Potentiometer or Rheostat Configuration Options

• Resistor Network Resolution

- 7-bit: 128 Resistors (129 Steps)

- 8-bit: 256 Resistors (257 Steps)

• RAB Resistances Options of:

- 5 k

- 10 k

- 50 k

- 100 k

• Zero-Scale to Full-Scale Wiper Operation

• Low Wiper Resistance: 75 (typical)

• Low Tempco:

- Absolute (Rheostat): 50 ppm typical

(0°C to 70°C)

- Ratiometric (Potentiometer): 15 ppm typical

• I2C Serial Interface

- 100 kHz, 400 kHz and 3.4 MHz Support

• Serial Protocol Allows:

- High-Speed Read/Write to Wiper

- Increment/Decrement of Wiper

• Resistor Network Terminal Disconnect Feature

via the Terminal Control (TCON) Register

• Brown-Out Reset Protection (1.5V typical)

• Serial Interface Inactive Current (2.5 uA typical)

• High-Voltage Tolerant Digital Inputs: up to 12.5V

• Wide Operating Voltage:

- 2.7V to 5.5V - Device Characteristics Specified

- 1.8V to 5.5V - Device Operation

• Wide Bandwidth (-3dB) Operation:

- 2 MHz (typical) for 5.0 k Device

• Extended Temperature Range (-40°C to +125°C)

Description:

The MCP45XX and MCP46XX devices offer a wide

range of product offerings using an I

2C interface. This

family of devices support 7-bit and 8-bit resistor

networks, volatile memory configurations, and

Potentiometer and Rheostat pinouts.

Package Types (top view)

4 5

P0W

P0B

P0A

VSS

VDD

MCP45X1

Single Potentiometer

MSOP

HVC / A0

SDA

SCL

4 5

P0B

P0W

VDD

MSOP

411

MCP46X1 Dual Potentiometers

TSSOP

10 P0W

P0B

P0A

P1A

P1W

P1B

VSS

HVC / A0

SDA

SCL

VSS

HVC/A0

SDA

SCL

QFN-16 4x4 (ML) *

MCP46X2 Dual Rheostat

MSOP

MCP45X2

Single Rheostat

DFN 3x3 (MF) *

SDA

SCL

VSS

P0B

5 P0W

VDD

HVC / A0

* Includes Exposed Thermal Pad (EP); see Table 3-1.

DFN 3x3 (MF) *

SDA

SCL

VSS

P0B

P0W

5 P0A

VDD

HVC / A0

VSS

SCL NC

P1B

P0B

P1W

P1A

P0A

P0W

HVC/A0

VDD

SDA EP

15 1314

5 6 7 8

SDA

SCL

VSS

P0B

7 P0W

VDD

HVC / A0

P1B 5 6 P1W

VDD

5 6

P0B

P0W

P1W

P1B

VSS

HVC/A0

SDA

SCL

7/8-Bit Single/Dual I2C Digital POT with

Volatile Memory

MCP453X/455X/463X/465X

DS22096B-page 2  2008-2013 Microchip Technology Inc.

Device Block Diagram

Device Features

Device

# of POTs

Wiper

Configuration

Control

Memory

Type

WiperLock

POR Wiper

Setting

Resistance (typical)

# of Steps

VDD

Operating

Range ( )2

RAB Options (k)Wiper -

RW ()

MCP4531 1 Potentiometer( )1 I2C RAM No Mid-Scale 5.0, 10.0, 50.0, 100.0 75 129 1.8V to 5.5V

MCP4532 1 Rheostat I2C RAM No Mid-Scale 5.0, 10.0, 50.0, 100.0 75 129 1.8V to 5.5V

MCP4541 1 Potentiometer( )1 I2C EE Yes NV Wiper 5.0, 10.0, 50.0, 100.0 75 129 2.7V to 5.5V

MCP4542 1 Rheostat I2C EE Yes NV Wiper 5.0, 10.0, 50.0, 100.0 75 129 2.7V to 5.5V

MCP4551 1 Potentiometer( )1I2C RAM No Mid-Scale 5.0, 10.0, 50.0, 100.0 75 257 1.8V to 5.5V

MCP4552 1 Rheostat I2C RAM No Mid-Scale 5.0, 10.0, 50.0, 100.0 75 257 1.8V to 5.5V

MCP4561 1 Potentiometer( )1 I2C EE Yes NV Wiper 5.0, 10.0, 50.0, 100.0 75 257 2.7V to 5.5V

MCP4562 1 Rheostat I2C EE Yes NV Wiper 5.0, 10.0, 50.0, 100.0 75 257 2.7V to 5.5V

MCP4631 2 Potentiometer( )1I2C RAM No Mid-Scale 5.0, 10.0, 50.0, 100.0 75 129 1.8V to 5.5V

MCP4632 2 Rheostat I2C RAM No Mid-Scale 5.0, 10.0, 50.0, 100.0 75 129 1.8V to 5.5V

MCP4641 2 Potentiometer( )1 I2C EE Yes NV Wiper 5.0, 10.0, 50.0, 100.0 75 129 2.7V to 5.5V

MCP4642 2 Rheostat I2C EE Yes NV Wiper 5.0, 10.0, 50.0, 100.0 75 129 2.7V to 5.5V

MCP4651 2 Potentiometer( )1I2C RAM No Mid-Scale 5.0, 10.0, 50.0, 100.0 75 257 1.8V to 5.5V

MCP4652 2 Rheostat I2C RAM No Mid-Scale 5.0, 10.0, 50.0, 100.0 75 257 1.8V to 5.5V

MCP4661 2 Potentiometer( )1I2C EE Yes NV Wiper 5.0, 10.0, 50.0, 100.0 75 257 2.7V to 5.5V

MCP4662 2 Rheostat I2C 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.

Power-Up/

Brown-Out

Control

VDD

VSS

2C Serial

Interface

Module &

Control

Logic

(WiperLock™

Technology)

Resistor

Network 0

(Pot 0)

Wiper 0

& TCON

Resistor

Network 1

(Pot 1)

Wiper 1

& TCON

HVC/A0

SCL

SDA

Memory (16x9)

Wiper0 (V)

Wiper1 (V)

TCON

Reserved

P0A

P0W

P0B

P1A

P1W

P1B

For Dual Resistor Network

Devices Only

I2C Interface

 2008-2013 Microchip Technology Inc. DS22096B-page 3

MCP453X/455X/463X/465X

1.0 ELECTRICAL CHARACTERISTICS

Absolute Maximum Ratings †

Voltage on VDD with respect to VSS .......................................................................................................... -0.6V to +7.0V

Voltage on HVC/A0, A1, A2, SCL, and SDA with respect to V

SS ............................................................................. -0.6V to 12.5V

Voltage on all other pins (PxA, PxW, and PxB) with respect to V

SS ............................................................. -0.3V to VDD + 0.3V

Input clamp current, IIK (VI < 0, V

I > VDD, VI > VPP ON HV pins)...........................................................................±20 mA

Output clamp current, IOK (VO < 0 or VO > VDD)...................................................................................................±20 mA

Maximum output current sunk by any Output pin....................................................................................................25 mA

Maximum output current sourced by any Output pin ..............................................................................................25 mA

Maximum current out of VSS pin ...........................................................................................................................100 mA

Maximum current into VDD pin ..............................................................................................................................100 mA

Maximum current into PX X XA, P W & P B pins ......................................................................................................±2.5 mA

Storage temperature ...............................................................................................................................-65°C to +150°C

Ambient temperature with power applied................................................................................................-40°C to +125°C

Package power dissipation (T

A = +50°C, TJ = +150°C)

MSSOP-8.......................................................................................................................................................473 mW

MSSOP-8 .......................................................................................................................................................473 mW

MSSOP-10.....................................................................................................................................................495 mW

DFN-8 (3x3) ......................................................................................................................................................1.76W

DFN-10 (3x3) ....................................................................................................................................................1.87W

TSSOP-14.........................................................................................................................................................1.00W

QFN-16 (4x4) ....................................................................................................................................................2.18W

Soldering temperature of leads (10 seconds) ....................................................................................................... +300°C

ESD protection on all pins  4 kV (HBM)

 300V (MM)

Maximum Junction Temperature (TJ) ................................................................................................................... +150°C