MCP23S08 _ BDTIC a Leading Distributor in China

MCP23S08

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.

Features

8-bit port expander with interrupt output
2 address inputs for up to 4 devices on one bus
25mA sink/source capability per I/O
Supports up to 10MHz SPI™ clock speeds
Internal power-on-reset (POR)

Parameter

Parameter Name Value	Value
Device Description 8-bit I/O Port Expander	8-bit I/O Port Expander
Operating Voltage Range (V) 1.8 to 5.5	1.8 to 5.5
Operating Temp Range (°C) -40 to 125	-40 to 125
Interface SPI	SPI
Max. Bus Frequency (kBits/s) 10000	10000

Documents

MCP23008/MCP23S08 Data Sheet	Data Sheets	08/24/2007	649KB
AN1043 - Unique Features of the MCP23X08/17 GPIO Expanders	AppNote	06/27/2006	297KB
AN1081 - Interfacing a 4x4 Matrix Keypad with an 8-Bit GPIO Expander	AppNote	04/12/2007	478KB
AN972 - I/O Expansion Using the MCP23X08 and PIC10F202	AppNote	01/31/2005	278KB
Analog & Interface Guide (Volume 2)	Brochures	10/11/2005	1067KB
Quick Guide to Microchip Development Tools	Brochures	10/15/2014	11223KB
Analog & Interface Product Selector Guide	Product Line Card	03/21/2016	4116KB
MCP23008/MCP23S08 Evaluation Board User's Guide	User Guides	06/29/2006	548KB

Ordering Information

Part Number	Leads	Package Type	Temp Range	Packing	1+	26+	100+	1000+	5000+
MCP23S08-E/ML	20	QFN	-40C to +125C	TUBE	1.15	0.96	0.87	0.84	0.83
MCP23S08-E/P	18	PDIP	-40C to +125C	TUBE	1.07	0.89	0.81	0.78	0.78
MCP23S08-E/SO	18	SOIC	-40C to +125C	TUBE	1.07	0.89	0.81	0.78	0.78
MCP23S08-E/SS	20	SSOP	-40C to +125C	TUBE	1.15	0.96	0.87	0.84	0.83
MCP23S08T-E/ML	20	QFN	-40C to +125C	T/R	1.15	0.96	0.87	0.84	0.83
MCP23S08T-E/SO	18	SOIC	-40C to +125C	T/R	1.07	0.89	0.81	0.78	0.78
MCP23S08T-E/SS	20	SSOP	-40C to +125C	T/R	1.15	0.96	0.87	0.84	0.83

Similar Devices

Product	Description	Operating Voltage (V)	Interface	Price5K
MCP23008	8-bit I/O Port Expander	1.8 - 5.5	I²C™	$0.73
MCP23009	8-bit I/O Port Expander	1.8 - 5.5	I²C™	$0.82
MCP23016	16-bit I/O Port Expander	2.0 - 5.5	I²C™	$1.15
MCP23017	16-bit I/O Port Expander	1.8 - 5.5	I²C™	$0.87
MCP23018	16-bit I/O Port Expander	1.8 - 5.5	I²C™	$1.09
MCP23S08	8-bit I/O Port Expander	1.8 - 5.5	SPI	$0.78
MCP23S09	8-bit I/O Port Expander	1.8 - 5.5	SPI	$0.87
MCP23S17	16-bit I/O Port Expander	1.8 - 5.5	SPI	$0.91
MCP23S18	16-bit I/O Port Expander	1.8 - 5.5	SPI	$1.16

RoHS Information

PartNumber	DeviceWeight	ShippingWeight	LeadCount	PackageType	PackageWidth	SolderComposition	JEDECIndicator
MCP23S08-E/P	1.248000	2.200000	18	PDIP	.300in	Matte Tin	e3
MCP23S08-E/SO	0.481000	0.857143	18	SOIC	.300in	Matte Tin	e3
MCP23S08T-E/SO	0.481000	1.000909	18	SOIC	.300in	Matte Tin	e3
MCP23S08T-E/ML	0.043100	0.212121	20	QFN	4x4x0.9mm	Matte Tin	e3
MCP23S08-E/ML	0.043100	0.076923	20	QFN	4x4x0.9mm	Matte Tin	e3
MCP23S08T-E/SS	0.164200	0.416250	20	SSOP	.209in	Matte Tin	e3
MCP23S08-E/SS	0.164200	0.343284	20	SSOP	.209in	Matte Tin	e3