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PCA9555 16-bit I/O Expander
PCA9555
Texas Instrumentsinterface io display
PCA9555 is a 16-bit I/O expander that expands general-purpose remote I/O for microcontroller families via the I2C interface.
In stock
Specifications
8- Operating Voltage
- 2.3V - 5.5V
- Supply Current
- 100μA (typical) at VCC = 5.5V, 200μA (max) μA
- Interface
- I2C
- Resolution
- N/A
- Range
- N/A
- Accuracy
- N/A
- Temperature Range
- -40°C to 85°C °C
- Package
- SSOP (24), QSOP (24), TSSOP (24), TVSOP (24), SOIC (24)
Pinout
6| Pin | Name | Functions | Notes |
|---|---|---|---|
| INT | Interrupt output | GPIO | Connect to VCC through a pullup resistor. |
| A1, A2, A0 | Address inputs | GPIO | Connect directly to VCC or ground. |
| P00 - P17 | Port inputs/outputs | GPIO | Push-pull design structure, connect externally limited to 25 mA each and total of 200 mA. |
| VCC | Supply voltage | POWER | |
| GND | Ground | GND | |
| SDA, SCL | I2C interface lines | I2C | Connect to VCC through a pullup resistor. |
Interactive pinout
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PCA9555
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