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MCP23S18 Datasheet PDF

Part Series:MCP23S18 Series
Category:Interface ICs
Description:MICROCHIP MCP23S18-E/MJ I/O Expander, 16Bit, 3.4MHz, I2C, Serial, SPI, 1.8V, 5.5V, QFN
Document:MCP23S18-E/MJ Datasheet PDF (57 Pages)

MCP23S18 Datasheet PDF Interface ICs

56 Pages
Microchip
SPI GPIO Expander 10000kHz 5.5V Automotive 28Pin SOIC W T/R

MCP23S18-E/MJ - Microchip Specifications

TYPE
DESCRIPTION
Mounting Style
Surface Mount
Number of Pins
24 Pin
Supply Voltage (DC)
1.80V (min)
Case/Package
QFN-24
Supply Current
1 mA
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MCP23S18-E/MJ - Microchip Function Overview

The MCP23S18-E/MJ is a 16-bit I/O Expander for high speed SPI™ compatible interface. The MCP23X18 device provides 16-bit, general purpose parallel I/O expansion for I²C bus or SPI applications. The two devices differ only in the serial interface. The MCP23X18 consists of multiple 8-bit configuration registers for input, output and polarity selection. The system master can enable the I/Os as either inputs or outputs by writing the I/O configuration bits. The data for each input or output is kept in the corresponding input or output register. The polarity of the input port register can be inverted with the polarity inversion register. All registers can be read by the system master. The 16-bit I/O port functionally consists of two 8-bit ports (PORTA and PORTB).
Low standby current as low as 1µA
High-speed I²C™ interface up to 3.4MHz
Single hardware address pin, voltage input to allow up to eight devices on the bus
Configurable interrupt output pins - Configurable as active-high, active-low or open-drain
1µA Typical low standby current
ESD sensitive device, take proper precaution while handling the device.
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