MCP23S18

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.
• MCP23018 - I2C interface
• MCP23S18 - SPI 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.

Features
  • 16-bit remote bidirectional I/O port
  • Open-drain outputs:
  • 5.5V tolerant
  • 25 mA sink
  • 400 mA total current out
  • Low standby current as low as 1 µA
  • 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
  • Low standby current:1 µA (typ.)
Parameter
Parameter Name Value Value
Device Description 16-bit I/O Port Expander 16-bit I/O Port Expander
Operating Voltage Range (V) 1.8 to 5.5 1.8 to 5.5
Operating Temp Range (°C) -40 to 125 -40 to 125
Interface SPI SPI
Max. Bus Frequency (kBits/s) 10000 10000
Documents
16-Bit I/O Expander with Open-Drain OutputsData Sheets09/29/2008738KB
Automotive Recommended Product Selector GuideBrochures09/16/20147598KB
Analog & Interface Product Selector GuideProduct Line Card03/21/20164116KB
Ordering Information
Part NumberLeadsPackage TypeTemp RangePacking1+26+100+1000+5000+
MCP23S18-E/MJ24QFN-40C to +125CTUBE1.601.331.211.171.16
MCP23S18-E/SO28SOIC-40C to +125CTUBE1.601.331.211.171.16
MCP23S18-E/SP28SPDIP-40C to +125CTUBE1.601.331.211.171.16
MCP23S18T-E/MJ24QFN-40C to +125CT/R1.601.331.211.171.16
MCP23S18T-E/SO28SOIC-40C to +125CT/R1.601.331.211.171.16
Similar Devices
ProductDescriptionOperating Voltage (V)InterfacePrice5K
MCP230088-bit I/O Port Expander1.8 - 5.5I²C™$0.73
MCP230098-bit I/O Port Expander1.8 - 5.5I²C™$0.82
MCP2301616-bit I/O Port Expander2.0 - 5.5I²C™$1.15
MCP2301716-bit I/O Port Expander1.8 - 5.5I²C™$0.87
MCP2301816-bit I/O Port Expander1.8 - 5.5I²C™$1.09
MCP23S088-bit I/O Port Expander1.8 - 5.5SPI$0.78
MCP23S098-bit I/O Port Expander1.8 - 5.5SPI$0.87
MCP23S1716-bit I/O Port Expander1.8 - 5.5SPI$0.91
MCP23S1816-bit I/O Port Expander1.8 - 5.5SPI$1.16
RoHS Information
PartNumberDeviceWeightShippingWeightLeadCountPackageTypePackageWidthSolderCompositionJEDECIndicatorRoHSChinaEFUP
MCP23S18-E/SO0.7704001.37037028SOIC.300inMatte Tine3
MCP23S18T-E/SO0.7704001.15250028SOIC.300inMatte Tine3
MCP23S18-E/SP2.0875003.73333328SPDIP.300inMatte Tine3
MCP23S18-E/MJ0.0441000.10989024QFN4x4x0.9mmMatte Tine3
MCP23S18T-E/MJ0.0441000.21212124QFN4x4x0.9mmMatte Tine3
16-Bit I/O Expander with Open-Drain Outputs MCP23S18
Automotive Recommended Product Selector Guide MCP23S09
Analog & Interface Product Selector Guide ENC624J600
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