| Part Number | MCP23S08 |
| Manufacturer | Microchip Technology |
| Title | 8-Bit I/O Expander |
| Description | TABLE 1-1: PINOUT DESCRIPTION Pin Name PDIP/ SOIC QFN SSOP Pin Type Function SCL/SCK 1 SDA/SI 2 A2/SO 3 A1 4 A0 5 RESET 6 NC/C... |
| Features |
• 8-Bit Remote Bidirectional I/O Port - I/O pins default to input • High-Speed I2C Interface (MCP23008) - 100 kHz - 400 kHz - 1.7 MHz • 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 allo... |
| File Size | 625.89KB |
| Datasheet |
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MCP23S09 : MCP23009/MCP23S09 8-Bit I/O Expander with Open-Drain Outputs Features: • 8-Bit Remote Bidirectional I/O Port: - I/O Pins Default to Input • Open-Drain Outputs: - 5.5V Tolerant - 25 mA Sink Capable (per Pin) - 200 mA Total • High-Speed I2C™ Interface (MCP23009): - 100 kHz - 400 kHz - 3.4 MHz • High-Speed SPI Interface (MCP23S09): - 10 MHz • Single Hardware Address Pin (MCP23009): - Voltage input to allow up to eight devices on the bus • Configurable Interrupt Output Pins: - Configurable as active-high, active-low or open-drain Block Diagram CS SCK SI SO MCP23S09 SPI • Configurable Interrupt Source: - Interrupt-on-Change from configured defaults or pin change • Polarity inversion register.