MCP23008 - 8-Bit I/O Expander

Product Overview

Microchip Technology

Datasheet Details

Part number	MCP23008
Manufacturer	Microchip Technology
File Size	625.89 KB
Description	8-Bit I/O Expander
Datasheet	MCP23008 Datasheet
Additional preview pages of the MCP23008 datasheet.

Product details

Description

TABLE 1-1: PINOUT DESCRIPTION Pin Name PDIP/ SOIC QFN SSOP Pin Type Function SCL/SCK 1 SDA/SI 2 A2/SO 3 A1 4 A0 5 RESET 6 NC/CS 7 INT 8 VSS 9 GP0 10 GP1 11 GP2 12 GP3 13 GP4 14 GP5 15 GP6 16 GP7 17 VDD 18 N/C 19 1 I Serial clock input.20 2 I/O Serial data I/O (MCP23008)/Serial data input (MCP23S08).1 3 I/O Hardware address input (MCP23008)/ Serial data output (MCP23S08).A2 must be biased externally.2 4 I Hardware address in

Features

8-Bit Remote Bidirectional I/O Port - I/O pins default to input.
High-Speed I2C Interface (MCP23008) - 100 kHz - 400 kHz - 1.7 MHz.
High-Speed SPI Interface (MCP23S08) - 10 MHz.
Hardware Address Pins - Three for the MCP23008 to allow up to eight devices on the bus - Two for the MCP23S08 to allow up to four devices using the same Chip Select.
Configurable Interrupt Output Pin - Configurable as active-high, active-low or open-drain Block Diagram MCP2.

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Published: Aug 27, 2008 |