- RS Stock No.:
- 177-2851
- Mfr. Part No.:
- MCP23S17T-E/ML
- Brand:
- Microchip
- RS Stock No.:
- 177-2851
- Mfr. Part No.:
- MCP23S17T-E/ML
- Brand:
- Microchip
Technical Reference
Legislation and Compliance
Product Details
The MCP23017/MCP23S17 (MCP23X17) device family provides 16-bit, general purpose parallel I/O expansion for I2C bus or SPI applications. The two devices differ only in the serial interface.MCP23017 – I2C interface MCP23S17 – SPI interface
The MCP23X17 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 (IODIRA/B). 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 MCP23X17 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 (IODIRA/B). 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.
16-bit input/output port expander with interrupt output
Cascadable for up to 8 devices on one bus
25mA sink/source capability per I/O
Supports up to 10MHz SPI™ clock speeds
Cascadable for up to 8 devices on one bus
25mA sink/source capability per I/O
Supports up to 10MHz SPI™ clock speeds
Specifications
Attribute | Value |
---|---|
Number of I/O Channels | 16 |
Interface | SPI |
Number of Pins | 28 |
Package Type | QFN |
Clock Frequency | 10MHz |
Mounting Type | Surface Mount |
Maximum Supply Voltage | 5.5 V |
Minimum Supply Voltage | 1.8 V |
Related links
- Microchip 16-Channel I/O Expander Serial-SPI 28-Pin SOIC
- Microchip 16-Channel I/O Expander Serial-SPI 28-Pin SSOP, MCP23S17-E/SS
- Microchip 16-Channel I/O Expander SPI 28-Pin PDIP, MCP23S17-E/SP
- Microchip 16-Channel I/O Expander I2C 28-Pin QFN, MCP23017-E/ML
- Microchip 16-Channel I/O Expander SPI 28-Pin SOIC, MCP23S17T-E/SO
- Microchip 16-Channel I/O Expander Serial-SPI 24-Pin QFN, MCP23S18-E/MJ
- Microchip 16-Channel I/O Expander I2C 28-Pin QFN, MCP23017T-E/ML
- Microchip 16-Channel I/O Expander SPI 28-Pin SOIC, MCP23S18-E/SO