8-Bit I/O Expander with Serial Interface Data Sheet

2007 Microchip Technology 1 MCP23008/MCP23S08 Features 8-Bit remote bidirectional I/O port- I/O pins default to input High-speed I2C Interface (MCP23008)- 100 kHz- 400 High-speed SPI Interface (MCP23S08)-10 MHz Hardware address pins- Three for the MCP23008 to allow up to eight devices on the bus- Two for the MCP23S08 to allow up to four devices using the same chip-select Configurable interrupt output pin- Configurable as active-high, active-low or open-drain Configurable interrupt source- Interrupt-on-change from configured defaults or pin change Polarity Inversion register to configure the polarity of the input port data External reset input Low standby current: 1 A (max.) Operating voltage:- to @ -40 C to +85 CI2C @ 100 kHzSPI @ 5 MHz- to @ -40 C to +85 CI2C @ 400 kHzSPI @ 10 MHz- to @ -40 C to +125 CI2C @ kHzSPI @ 10 MHzPackages 18-pin PDIP (300 mil) 18-pin SOIC (300 mil) 20-pin SSOP 20-pin QFNB lock DiagramGP0GP1GP2GP3GP4GP5GP6GP7 SerialControlGPIOSCLSDARESETINT8 Configuration/8A2:A03 ControlRegistersSerializer/DeserializerI nterruptLogic VDDVSSPORD ecode Interface SCKSISOMCP23S08 MCP23008A1:A0 MCP23S088-Bit I/O Expander with Serial InterfaceMCP23008/MCP23S08DS21919E-page 2 2007 Microchip Technology TypesSDASCLNCINTRESETA1GP4 VDDGP7GP6GP5GP3GP2123456718171615141312 PDIP/SOIC891110GP1GP0A0A2 VSSMCP23008 MCP23008

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.

Loading..

Tags:

  Serial, With, Input, Interface, Expanders, O expander with serial interface

Information

Related search queries