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MCP23016
  • MCP23016
  • MCP23016
  • MCP23016
  • MCP23016

MCP23016

Not Recommended for new designs

The MCP23016 is not recommended for new designs. Please consider using the MCP23017 or MCP23018 instead. The MCP23016 device provides 16-bit, general purpose, parallel I/O expansion for I2C™Compatible bus applications. It includes high-current drive capability, low supply current and individual I/O configuration. I/O expanders provide a simple solution when additional I/Os are needed for ACPI, power switches, sensors, push buttons, LEDs and so on....

Microchip Technology MCP23016 Product Info

16 April 2026 0

Parameters

Max. Bus Frequency [kBits/s]

400

Operating Voltage [V] Max

5.5

Operating Voltage [V] Min

2.0

TempRange [°C] Max

85

TempRange [°C] Min

-40

Features

  • 16-bit I/O port expander with interrupt
  • 3 hardware address pins allow user to use up to 8 of these devices on the same I2C/SMBus
  • 25mA source/sink capability per I/O
  • I2C and SMBus compatible interface (0 to 400kHz clock frequency)
  • 16 programmable bi-directional I/Os compatible with most processors
  • Outputs can directly drive LEDs (Source and sink current 25mA)
  • Polarity inversion register to configure the polarity of the input port data
  • Internal power on reset (POR)
  • Open-drain interrupt output activated when input changes state
  • Low supply current
  • Specified over Industrial temperature range -40°C to +85°C

Description

The MCP23016 is not recommended for new designs. Please consider using the MCP23017 or MCP23018 instead.


The MCP23016 device provides 16-bit, general purpose, parallel I/O expansion for I2C™Compatible bus applications. It includes high-current drive capability, low supply current and individual I/O configuration. I/O expanders provide a simple solution when additional I/Os are needed for ACPI, power switches, sensors, push buttons, LEDs and so on.

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