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MCP23018 - 16-Bit I/O Expander

General Description

I2C PINOUT DESCRIPTION (MCP23018) 24L QFN 24 1 2 3 4 5 6 7 8 23 9 10 11 12 13 14 15 16 17 18 19 20 21 22 25 24L Pin SSOP Type 2 3 4 5 6 7 8 9 10 1 11 12 13 14 15 16 17 18 19 20 21 22 23 24 I/O I/O I/O I/O I/O I/O I/O I/O P P I I/O I I O O I/O I/O I/O I/O I/O I/O I/O I/

Key Features

  • 16-bit remote bidirectional I/O port: - I/O pins default to input.
  • Open-drain outputs: - 5.5V tolerant - 25 mA sink capable (per pin) - 400 mA total.
  • High-speed I2C™ interface: (MCP23018) - 100 kHz - 400 kHz - 3.4 MHz.
  • High-speed SPI interface: (MCP23S18) - 10 MHz: 2.7V ≤ VDD ≤ 5.5V.
  • Single hardware address pin: (MCP23018) - Voltage input to allow up to eight devices on the bus.
  • Configurable interrupt output pins: - Configurable as active-hi.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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MCP23018/MCP23S18 16-Bit I/O Expander with Open-Drain Outputs Features • 16-bit remote bidirectional I/O port: - I/O pins default to input • Open-drain outputs: - 5.5V tolerant - 25 mA sink capable (per pin) - 400 mA total • High-speed I2C™ interface: (MCP23018) - 100 kHz - 400 kHz - 3.4 MHz • High-speed SPI interface: (MCP23S18) - 10 MHz: 2.7V ≤ VDD ≤ 5.