← All parts
I/O Expander 16 SPI 10 MHz 28-SPDIP
579
ic
An I/O expander with 16-bit remote bidirectional I/O ports and support for SPI interface at up to 10 MHz.
In stock
Specifications
5- Operating Voltage
- 1.8V to 5.5V @ –40°C to +125°C, 2.7V to 5.5V @ –40°C to +85°C, 4.5V to 5.5V @ –40°C to +125°C
- Supply Current
- 1 µA (max.) at –40°C to +85°C; 3 µA (max.) at 4.5V to 5.5V and +85°C to +125°C
- Interface
- I2C, SPI
- Temperature Range
- -40°C to +125°C
- Package
- 28-pin QFN, 6 x 6 mm Body; 28-pin SOIC, Wide, 7.50 mm Body; 28-pin SPDIP, 300 mil Body; 28-pin SSOP, 5.30 mm Body
Pinout
28| Pin | Name | Functions | Notes |
|---|---|---|---|
| VDD | Power | POWER | |
| VSS | Ground | GND | |
| NC/CS | Chip Select | — | MCP23S17 only |
| SCK | Serial Clock Input | SPI | |
| SDA/SI | Serial Data I/O | SPI | MCP23017 only |
| NC/SO | Serial Data Out | SPI | MCP23S17 only |
| A0 | Hardware Address Pin | — | |
| A1 | Hardware Address Pin | — | |
| A2 | Hardware Address Pin | — | |
| RESET | Hardware Reset | — | |
| INTB | Interrupt Output for PORTB | GPIO | |
| INTA | Interrupt Output for PORTA | GPIO | |
| GPA0 | Bidirectional I/O Pin | GPIO | |
| GPA1 | Bidirectional I/O Pin | GPIO | |
| GPA2 | Bidirectional I/O Pin | GPIO | |
| GPA3 | Bidirectional I/O Pin | GPIO | |
| GPA4 | Bidirectional I/O Pin | GPIO | |
| GPA5 | Bidirectional I/O Pin | GPIO | |
| GPA6 | Bidirectional I/O Pin | GPIO | |
| GPA7 | Bidirectional I/O Pin | GPIO | |
| GPB0 | Bidirectional I/O Pin | GPIO | |
| GPB1 | Bidirectional I/O Pin | GPIO | |
| GPB2 | Bidirectional I/O Pin | GPIO | |
| GPB3 | Bidirectional I/O Pin | GPIO | |
| GPB4 | Bidirectional I/O Pin | GPIO | |
| GPB5 | Bidirectional I/O Pin | GPIO | |
| GPB6 | Bidirectional I/O Pin | GPIO | |
| GPB7 | Bidirectional I/O Pin (Output only for MCP23017) | GPIO |
Interactive pinout
Highlight:
579
Click a pin to copy its name · tap a tag above to spotlight a bus.