MCP23S18-E/SP The Microchip Technology MCP23S18-E/SP is a 16-bit I/O expander featuring a high-speed SPI interface. It offers open-drain outputs and operates over a wide voltage range.
Mfr Part #:

MCP23S18-E/SP

Available from 1 distributors
Mfr Name: Microchip Technology
Microchip Technology
The Microchip Technology MCP23S18-E/SP is a 16-bit I/O expander featuring a high-speed SPI interface. It offers open-drain outputs and operates over a wide voltage range.
✓ Total Stock: 25 pcs
$ Price Range: $1.15

MCP23S18-E/SP Available from 1 distributor

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✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
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25 pcs
25 pcs On Request 1 On Request On Request 829 On Request On Request

MCP23S18-E/SP Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Clock Frequency
Current
Interface
Interrupt Output
Lead Spacing
Mounting Type
Number of I
Operating Temperature
Output Type
Supplier Device Package
Supplier Package
Tape & Reel
Voltage

MCP23S18-E/SP Description

Short technical summary and product information.

The Microchip Technology MCP23S18-E/SP is a versatile 16-bit remote bidirectional I/O port expander designed for SPI applications. It provides 16 general-purpose I/O pins that default to input and feature open-drain outputs capable of sinking 25 mA per pin.

 

This device supports a high-speed SPI interface with a clock frequency of up to 10 MHz. It operates within a voltage range of 1.8V to 5.5V and has a configurable interrupt output. The operating temperature range is from -40°C to +125°C, making it suitable for various environmental conditions. Standby current is as low as 1 µA.

 

The MCP23S18-E/SP is available in a 28-pin PDIP package, designed for through-hole mounting. Its open-drain output characteristic and configurable interrupt source provide flexibility in system design.

 

Key electrical specifications include a 10 MHz SPI interface, 1.8V to 5.5V operating voltage, and 25 mA sink capability per pin. The device also offers configurable interrupt pins and a polarity inversion register for input port data.

MCP23S18-E/SP Quick Information

Product Type: IO Expander
Canonical Name: MCP23S18-E/SP 16-Bit SPI I/O Expander
Subcategory: IO Expander

MCP23S18-E/SP Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

MCP23S18-E/SP Estimated Pricing

Qty Low High
1+ $1.15 $1.15

Estimated market price range - modelled values for guidance only, not live distributor offers.

MCP23S18-E/SP Features

  • 16-bit bidirectional I/O port.
  • High-speed SPI interface up to 10 MHz.
  • Open-drain outputs with 25 mA sink capability.
  • Wide operating voltage from 1.8V to 5.5V.
  • Configurable interrupt output pins.

MCP23S18-E/SP Applications

  • Extends microcontroller I/O capabilities.
  • Suitable for embedded system designs.
  • Ideal for applications requiring SPI communication.
  • Provides flexible output control.

MCP23S18-E/SP FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the MCP23S18-E/SP?

The MCP23S18-E/SP operates from 1.8V to 5.5V.

What is the operating temperature range for this IO expander?

The operating temperature range is -40°C to +125°C.

What type of interface does the MCP23S18-E/SP use?

The MCP23S18-E/SP uses a high-speed SPI interface.

What is the maximum clock frequency for the SPI interface?

The maximum clock frequency for the SPI interface is 10 MHz.

Does the MCP23S18-E/SP have open-drain outputs?

Yes, the MCP23S18-E/SP features open-drain outputs.

What is the current sink capability per pin?

The current sink capability per pin is 25 mA.

Does this device have interrupt outputs?

Yes, the MCP23S18-E/SP has configurable interrupt output pins.

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