MICROCHIP  MCP23S17-E/SP  I/O Expander, 16bit, 10 MHz, Serial, SPI, 1.8 V, 5.5 V, DIP


Image is for illustrative purposes only. Please refer to product description.

  • Manufacturer:
  • Order Code: 1292238
  • Manufacturer Part No MCP23S17-E/SP

Product Specifications, Documents & More

  • Bus Frequency: 10MHz
  • Chip Configuration: 16bit
  • IC Interface Type: Serial, SPI
  • Interface Case Style: DIP
  • MSL: -
  • No. of I/O's: 16
  • No. of Pins: 28
  • Packaging: Each
  • SVHC: No SVHC (15-Jun-2015)
  • Supply Voltage Max: 5.5V
  • Supply Voltage Min: 1.8V


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.


  • Cascadable for up to 8 devices on one bus
  • 16-bit input/output port expander with interrupt output
  • 25mA sink/source capability per I/O
  • Supports up to 10MHz SPI clock speeds
  • Polarity Inversion register to configure the polarity of the input port data
  • Configurable interrupt output pins
  • External reset input
  • Low standby current of 1 uA (max)


  • Embedded Design & Development
  • Automation & Process Control


Availability:  2,279

  • 1,406 in stock for next day delivery (Liege stock)
  • 873 in stock for next day delivery (UK stock)
Check stock and lead times
  • 435 will be available for delivery on 31-Jan-2016
  • More stock available week commencing 07/03/16

Price for: Each 1

Minimum order quantity: 1

Order multiple quantity: 1

Price: £1.05



Quantity List Price
1 - 9 £1.05
10 - 24 £0.697
25 - 49 £0.668
50 - 99 £0.64
100+ £0.623

Legislation and Environmental

  • Moisture Sensitivity Level: -
  • Country of Origin: United States

    Country in which last significant manufacturing process was carried out

  • RoHS Compliant: Yes
      RoHS Certificate of Compliance
  • Tariff No: 85423990
  • Weight (kg): .002963
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