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  • MCP23S08T-E/SS

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8-Bit I/O Expander with Serial Interface,I/O Expanders, Repeaters & Hubs In/Out I2C int

Manufacturer : Microchip Technology, Inc
Package/Case : SSOP-20
Product Categories : I/O Expanders, Repeaters & Hubs
Datasheet: MCP23S08T-E/SS Datasheet (PDF)
RoHs Status: Rohs
In-stock: 402


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MCP23S08T-E/SS Product Details

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 • MCP23S08T-E/SS – 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.



  • 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)

Technical Parameters

  • Number of I/Os
  • 8
  • Maximum Operating Frequency
  • 10 MHz
  • Operating Supply Voltage
  • 1.8 V to 5.5 V
  • Operating Temperature Range
  • - 40 C to + 125 C
  • Mounting Style
  • Package / Case
  • SSOP-20
  • Packaging
  • Reel
  • Interface Type
  • SPI
  • Interrupt Output
  • Yes
  • Operating Current
  • 1 mA
  • Power Dissipation
  • 700 mW
  • Product Type
  • I/O Expanders
  • Factory Pack Quantity
  • 1600

MCP23S08T-E/SS Datasheet

  • MCP23S08 Technical Documentation of Application Note

MCP23S08T-E/SS Equivalent Parts

For the MCP23S08T-E/SS component, you may consider these replacement and alternative parts.

Models Manufacturer Package/Case Description
MCP23S08T-E/SO MICROCHIP SOIC-18 8-Channel I/O Expander 10MHz, SPI, 18-Pin SOIC
MCP23S08T-E/ML MICROCHIP QFN-20 8-Bit I/O Expander with Serial Interface,I/O Expanders, Repeaters & Hubs 8bit Input/Output Exp SPI interface

MCP23S08T-E/SS Related Products

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Microchip Technology, Inc

Microchip Technology Inc. is a leading manufacturer of microcontroller and analog products, providing low-risk product development, lower total system cost, and faster time to market for thousands of diverse customer applications worldwide. Microchip offers outstanding technical support along with d...
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