MCP23018-E/SP The Microchip Technology MCP23018-E/SP is a 16-bit I/O expander featuring an I2C interface and open-drain outputs. It operates from 1.8V to 5.5V with a clock frequency of 3.4 MHz.
Mfr Part #:

MCP23018-E/SP

Available from 2 distributors
Mfr Name: Microchip Technology
Microchip Technology
The Microchip Technology MCP23018-E/SP is a 16-bit I/O expander featuring an I2C interface and open-drain outputs. It operates from 1.8V to 5.5V with a clock frequency of 3.4 MHz.
Total Stock: 28,129 pcs
$ Price Range: $1.15

MCP23018-E/SP Available from 2 distributors

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Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
28,104 pcs
28104 pcs On Request 1 On Request On Request 2020+ On Request On Request
Non-Authorised Inventory information
25 pcs
25 pcs On Request 1 On Request On Request On Request On Request On Request

MCP23018-E/SP Specifications Quick View

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

MCP23018-E/SP Description

Short technical summary and product information.

The MCP23018-E/SP from Microchip Technology is a 16-bit remote bidirectional I/O port expander designed for I2C applications. It offers 16 general-purpose I/O pins that default to input. The device features open-drain outputs capable of sinking 25 mA per pin and a total of 400 mA.

 

Key electrical specifications include an operating voltage range of 1.8V to 5.5V and a high-speed I2C interface supporting up to 3.4 MHz. It also includes configurable interrupt output pins and a polarity inversion register. The device operates within an industrial temperature range of -40°C to 125°C.

 

This I/O expander is available in a 28-pin PDIP package, suitable for through-hole mounting. The MCP23018-E/SP is designed to provide flexible I/O expansion in various embedded systems and electronic designs.

MCP23018-E/SP Quick Information

Product Type: I/O Expander
Canonical Name: MCP23018-E/SP 16-Bit I/O Expander with Open-Drain Outputs

MCP23018-E/SP Compliance

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

MCP23018-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.

MCP23018-E/SP Features

  • 16-bit bidirectional I/O port.
  • Open-drain outputs, 25mA sink capable.
  • High-speed I2C interface up to 3.4 MHz.
  • Operating voltage from 1.8V to 5.5V.
  • Configurable interrupt output pins.

MCP23018-E/SP Applications

  • Provides additional I/O for microcontrollers.
  • Suitable for I2C bus expansion.
  • Used in embedded system designs.
  • Offers flexible input/output control.

MCP23018-E/SP FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the MCP23018-E/SP?

The operating voltage range is 1.8V to 5.5V.

What is the operating temperature range for this I/O expander?

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

What is the maximum clock frequency for the I2C interface?

The I2C interface supports a maximum clock frequency of 3.4 MHz.

What is the output current capability per pin?

Each output pin is capable of sinking 25mA.

How many I/O pins does the MCP23018-E/SP offer?

The device provides 16 I/O pins.

What type of output does this I/O expander feature?

It features open-drain outputs.

Does the MCP23018-E/SP have interrupt output capabilities?

Yes, it has configurable interrupt output pins.

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