MCP23S18T-E/SO The Microchip MCP23S18T-E/SO is a 16-bit SPI I/O expander featuring open-drain outputs. It operates from 1.8V to 5.5V with a maximum clock frequency of 10 MHz.
Mfr Part #:

MCP23S18T-E/SO

Available from 1 distributors
Mfr Name: Microchip Technology
Microchip Technology
The Microchip MCP23S18T-E/SO is a 16-bit SPI I/O expander featuring open-drain outputs. It operates from 1.8V to 5.5V with a maximum clock frequency of 10 MHz.
✓ Total Stock: 282 pcs
$ Price Range: $1.15

MCP23S18T-E/SO Available from 1 distributor

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

MCP23S18T-E/SO 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
Voltage

MCP23S18T-E/SO Description

Short technical summary and product information.

The Microchip MCP23S18T-E/SO 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 up to 10 MHz. It operates within a voltage range of 1.8V to 5.5V and includes configurable interrupt output pins that can be set as active-high, active-low, or open-drain. The interrupt source can be configured for interrupt-on-change from configured defaults or pin change events. A polarity inversion register allows for configuration of the input port data polarity, and an external reset input is also provided.

 

Packaged in a 28-SOIC (0.295", 7.50mm Width) surface-mount package, the MCP23S18T-E/SO is suitable for various embedded system designs requiring additional I/O capabilities. It exhibits low standby current, drawing only 1 µA at temperatures up to 85°C and 6 µA at temperatures up to 125°C.

MCP23S18T-E/SO Quick Information

Product Type: IO Expander
Canonical Name: MCP23S18T-E/SO 16-Bit SPI I/O Expander with Open-Drain Outputs

MCP23S18T-E/SO Compliance

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

MCP23S18T-E/SO 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/SO Features

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

MCP23S18T-E/SO Applications

  • Extends microcontroller I/O capabilities.
  • Suitable for SPI communication systems.
  • Ideal for designs needing flexible I/O control.
  • Used in embedded systems requiring more pins.

MCP23S18T-E/SO FAQs

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

The operating voltage range is 1.8V to 5.5V.

What type of interface does the MCP23S18T-E/SO use?

The MCP23S18T-E/SO uses a SPI interface.

What is the maximum clock frequency for the SPI interface?

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

How many I/O pins does the MCP23S18T-E/SO provide?

The MCP23S18T-E/SO provides 16 I/O pins.

What is the operating temperature range?

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

What package type is the MCP23S18T-E/SO supplied in?

It is supplied in a 28-SOIC package.

Does the MCP23S18T-E/SO have open-drain outputs?

Yes, it features open-drain outputs.

Home

Categories