MCP23018-E/SO The Microchip Technology MCP23018-E/SO is a 16-bit I/O expander featuring an I2C interface and open-drain outputs. It operates over a voltage range of 1.8V to 5.5V.
Mfr Part #:

MCP23018-E/SO

Available from 1 distributors
Mfr Name: Microchip Technology
Microchip Technology
The Microchip Technology MCP23018-E/SO is a 16-bit I/O expander featuring an I2C interface and open-drain outputs. It operates over a voltage range of 1.8V to 5.5V.
✓ Total Stock: 28,103 pcs
$ Price Range: $1.15

MCP23018-E/SO 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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28,103 pcs
28103 pcs On Request 1 On Request On Request 2020+ On Request On Request

MCP23018-E/SO Specifications Quick View

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

MCP23018-E/SO Description

Short technical summary and product information.

The Microchip Technology MCP23018-E/SO is a versatile 16-bit remote bidirectional I/O port expander designed for I2C applications. It offers configurable interrupt output pins and supports interrupt-on-change functionality from configured defaults or pin changes. The device features open-drain outputs and is tolerant to -5.5V.

 

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. Each I/O pin is capable of sinking 25 mA, with a total sink capability of 400 mA. The I/O pins default to input and can be configured for polarity inversion.

 

This I/O expander is housed in a 28-SOIC package with a surface mount type. It operates within a temperature range of -40°C to 125°C. The MCP23018 is suitable for applications requiring additional general-purpose parallel I/O expansion in embedded systems.

MCP23018-E/SO Quick Information

Product Type: IO Expander
Canonical Name: MCP23018 16-Bit I/O Expander with Open-Drain Outputs
Subcategory: I/O Expanders

MCP23018-E/SO Compliance

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

MCP23018-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.

MCP23018-E/SO Features

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

MCP23018-E/SO Applications

  • Extends microcontroller I/O capabilities.
  • Suitable for embedded system designs.
  • Provides flexible digital input/output.
  • Used in I2C communication systems.

MCP23018-E/SO FAQs

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

The operating voltage range is 1.8V to 5.5V.

What package type is the MCP23018-E/SO available in?

It is available in a 28-SOIC (0.295", 7.50mm Width) package.

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

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

What interface does the MCP23018-E/SO use?

It uses the I²C interface.

What is the maximum clock frequency for the I2C interface?

The maximum clock frequency is 3.4 MHz.

Does the MCP23018-E/SO have interrupt capabilities?

Yes, it features configurable interrupt output pins.

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