MCP23S18T-E/MJ The Microchip Technology MCP23S18T-E/MJ is a 16-bit SPI I/O expander. It features open-drain outputs and operates over a voltage range of 1.8V to 5.5V.
Mfr Part #:

MCP23S18T-E/MJ

Available from 3 distributors
Mfr Name: Microchip Technology
Microchip Technology
The Microchip Technology MCP23S18T-E/MJ is a 16-bit SPI I/O expander. It features open-drain outputs and operates over a voltage range of 1.8V to 5.5V.
Total Stock: 6,438 pcs
$ Price Range: $1.15

MCP23S18T-E/MJ Available from 3 distributors

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MCP23S18T-E/MJ 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
Voltage

MCP23S18T-E/MJ Description

Short technical summary and product information.

The Microchip Technology MCP23S18T-E/MJ is a versatile 16-bit remote bidirectional I/O port expander designed for SPI applications. This device offers 16 general-purpose I/O pins that default to input mode and support open-drain outputs capable of sinking 25 mA per pin.

 

Key electrical characteristics include an operating voltage range of 1.8V to 5.5V and a high-speed SPI interface supporting up to 10 MHz. The device also features configurable interrupt output pins, which can be set as active-high, active-low, or open-drain, and a configurable interrupt source for interrupt-on-change from configured defaults or pin change.

 

Packaged in a 24-QFN (4x4 mm) with an exposed pad, the MCP23S18T-E/MJ is designed for surface mounting. It operates within a temperature range of -40°C to 125°C. The low standby current, 1 µA at 85°C and 6 µA at 125°C, makes it suitable for power-sensitive applications.

MCP23S18T-E/MJ Quick Information

Product Type: IO Expander
Series: MCP23S18
Canonical Name: MCP23S18T-E/MJ 16-Bit SPI I/O Expander with Open-Drain Outputs
Subcategory: IO Expanders

MCP23S18T-E/MJ Compliance

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

MCP23S18T-E/MJ Estimated Pricing

Qty Low High
1+ $1.15 $1.15

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

MCP23S18T-E/MJ Features

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

MCP23S18T-E/MJ Applications

  • Extends microcontroller I/O capabilities.
  • Suitable for low-power applications.
  • Used in embedded system designs.
  • Provides flexible interrupt handling.

MCP23S18T-E/MJ FAQs

5 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the MCP23S18T-E/MJ?

The operating voltage range is 1.8V to 5.5V.

What is the maximum clock frequency for the MCP23S18T-E/MJ?

The maximum clock frequency is 10 MHz.

What type of outputs does the MCP23S18T-E/MJ have?

The MCP23S18T-E/MJ has open-drain outputs.

How many I/O pins does the MCP23S18T-E/MJ offer?

The MCP23S18T-E/MJ offers 16 I/O pins.

What is the operating temperature range for this IO expander?

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

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