User manual

MCP401X/2X EVALUATION

BOARD USER’S GUIDE

Chapter 1. Product Overview

1.1 INTRODUCTION

This chapter provides an overview of the MCP402X Digital Potentiometer Evaluation

Board and covers the following topics:

• What is the MCP402X Digital Potentiometer Evaluation Board?

• What the MCP402X Digital Potentiometer Evaluation Board includes

1.2 WHAT IS THE MCP402X DIGITAL POTENTIOMETER EVALUATION BOARD?

The MCP402X Digital Potentiometer Evaluation Board (MCP402XEV) allows the

system designer to quickly evaluate the operation of Microchip Technology’s

MCP401X/2X Digital Potentiometer products.

The MCP402X Digital Potentiometer Evaluation Board PCB was designed to support:

• 8-pin, 150 mil SOIC MCP4021-XXX/SN devices

• SOT-23-6 MCP4022-XXX/OT devices

• SOT-23-6 MCP4023-XXX/OT devices

• SOT-23-5 MCP4024-XXX/OT devices

• 8-pin, 150 mil SOIC MCP4011-XXX/SN devices

• SOT-23-6 MCP4012-XXX/OT devices

• SOT-23-6 MCP4013-XXX/OT devices

• SOT-23-5 MCP4014-XXX/OT devices

In addition to supporting the MCP401X/2X, the MCP402XEV also utilizes the SOT-23-6

PIC10F20X microcontroller.

The PIC10F20X is supplied with example firmware that debounces the INCR and

DECR push buttons and generates the simple U/D

protocol required by the

MCP401X/2X to increment and decrement the potentiometer’s wiper. It also generates

the simple U/D

protocol required by the MCP402X to lock and unlock the

potentiometer’s wiper.