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MCP23S17

16-Bit SPI I/O Expander with Serial Interface

Status: In Production

Features:

  • 16-bit input/output port expander with interrupt output
  • Cascadable for up to 8 devices on one bus
  • 25mA sink/source capability per I/O
  • Supports up to 10MHz SPI™ clock speeds
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Overview
Documents
Development Environment
Similar Devices
RoHS Information
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Device Overview

Summary

The MCP23017/MCP23S17 (MCP23X17) device family provides 16-bit, general purpose parallel I/O expansion for I2C bus or SPI applications. The two devices differ only in the serial interface.
• MCP23017 – I2C interface
• MCP23S17 – SPI interface
The MCP23X17 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 (IODIRA/B).  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.

Additional Features

     

    • 16-bit input/output port expander with interrupt output
    • Cascadable for up to 8 devices on one bus
    • 25mA sink/source capability per I/O
    • Supports up to 10MHz SPI™ clock speeds
Parametrics
Name
Value
Device Description
16-bit I/O Port Expander
Operating Voltage Range (V)
1.8 to 5.5
Operating Temp Range (°C)
-40 to 125
Interface
SPI
Max. Bus Frequency (kBits/s)
10000

Documents

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Data Sheets

07/06/2016
845KB

Errata

Product Selection Tools

Development Environment

  • Demo & Evaluation Boards
Demo & Evaluation Boards
MCP23X08/17 GPIO Exp Keypad/LCD Demo
MCP23X08/17 GPIO Exp Keypad/LCD Demo ( GPIODM-KPLCD )

The GPIO Expander Keypad and LCD Demo Board is designed to demonstrate the use of the MCP23S08/17 (SPI interface) and the MCP23008/17 (I2C interface) devices in a keypad and LCD example. The MCP23X17 (16-bit) devices interface to a 2x16 LCD module and the MCP23X08 (8-bit) devices interface to a 4x4 keyed matrix.

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MCP23X17 Evaluation Board
MCP23X17 Evaluation Board ( MCP23X17EV )

The MCP23X17 16-bit GPIO Expander Evaluation Board demonstrates simple input/output functionality of the MCP23017 (I2C interface) and the MCP23S17 (SPI interface). The system demonstrates the simplicity of monitoring four pins configured as inputs and applying a predetermined pattern on LEDs connected to the remaining 12 pins configured as outputs.

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Similar Devices

Product
Description
Operating Voltage (V)
Interface
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RoHS Information

Part Number
Device Weight
Shipping Weight
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
MCP23S17-E/SO
0.770400
1.370370
28
SOIC
.300in
Matte Tin
e3
Rohs icon
efup china icon
MCP23S17T-E/SO
0.770400
1.152500
28
SOIC
.300in
Matte Tin
e3
Rohs icon
efup china icon
MCP23S17-E/SP
2.087500
3.733333
28
SPDIP
.300in
Matte Tin
e3
Rohs icon
efup china icon
MCP23S17T-E/ML
0.101600
0.332500
28
QFN
6x6x0.9mm
Matte Tin
e3
Rohs icon
efup china icon
MCP23S17-E/ML
0.101600
0.163934
28
QFN
6x6x0.9mm
Matte Tin
e3
Rohs icon
efup china icon
MCP23S17-E/SS
0.229200
0.489362
28
SSOP
.209in
Matte Tin
e3
Rohs icon
efup china icon
MCP23S17T-E/SS
0.229200
0.333333
28
SSOP
.209in
Matte Tin
e3
Rohs icon
efup china icon
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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