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See Technical Specifications

MCP23008-E/P

8-Bit I2C I/O Expander with Serial Interface.

Manufacturer:

Microchip Technology, Inc
Mfr.Part #:

MCP23008-E/P
Datasheet:

MCP23008-E/P Datasheet (PDF)
Number of I/Os:

8 I/O
Interface Type:

I2C, Serial
Maximum Clock Frequency:

1.7 MHz
Interrupt Output:

With Interrupt
EDA/CAD Models:

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MCP23008-E/P General Description

The MCP23X08 device provides 8-bit, general purpose, parallel I/O expansion for I2C bus or SPI applications. The two devices differ in the number of hardware address pins and the serial interface:
• MCP23008 – I2C interface; three address pins
• MCP23S08 – SPI interface; two address pins
The MCP23X08 consists of multiple 8-bit configuration registers for input, output and polarity selection. The system master can enable the I/Os as either inputs or outputs by writing the I/O configuration bits. The data for each input or output is kept in the corresponding Input or Output register. The polarity of the Input Port register can be inverted with the Polarity Inversion register. All registers can be read by the system master.

Key Features

8-bit port expander with interrupt output
3 address inputs for up to 8 devices on one bus
25mA sink/source capability per I/O
Supports 100kHz, 400kHz and 1.7MHz I2C™Compatible modes
Internal power-on-reset (POR)

Microchip Technology, Inc Original Stock

Specifications

Product Category:	Interface - I/O Expanders	Number of I/Os:	8 I/O
Interface Type:	I2C, Serial	Maximum Clock Frequency:	1.7 MHz
Interrupt Output:	With Interrupt	Operating Supply Voltage:	1.8 V to 5.5 V
Minimum Operating Temperature:	- 40 C	Maximum Operating Temperature:	+ 125 C
Mounting Style:	Through Hole	Packaging:	Tube
Input Voltage:	1.8 V to 5.5 V	Output Current:	25 mA
Output Voltage:	1.8 V to 4.5 V	Product:	I/O Expanders
Type:	I/O Expander	Logic Family:	MCP23008
Logic Type:	I/O Expander	Operating Supply Current:	1 mA
Pd - Power Dissipation:	700 mW	Product Type:	I/O Expanders
Propagation Delay Time:	50 ns	Factory Pack Quantity:	25
Subcategory:	Interface ICs	Unit Weight:	0.044801 oz
Tags	MCP23008-E, MCP23008, MCP2300, MCP230, MCP23, MCP2, MCP	Programmabe	Not Verified
Number of I/O	8	Interface	I2C
Interrupt Output	Yes	Features	POR
Output Type	Push-Pull	Current - Output Source/Sink	25mA
Clock Frequency	1.7 MHz	Voltage - Supply	1.8V ~ 5.5V
Operating Temperature	-40°C ~ 125°C	Mounting Type	Through Hole
Base Product Number	MCP23008