← All parts
TCA9534 I/O Expander
TCA9534
Texas Instrumentsinterface io display
The TCA9534 is an I2C/SMBus expander with 8 general-purpose I/O ports and interrupt output, operating from 1.65V to 5.5V.
In stock
Specifications
8- Operating Voltage
- 1.65 V to 5.5 V
- Supply Current
- 200 mA
- Interface
- I2C/SMBus
- Resolution
- N/A
- Range
- N/A
- Accuracy
- N/A
- Temperature Range
- -40°C to 85°C
- Package
- 16-pin TSSOP, SOIC
Pinout
16| Pin | Name | Functions | Notes |
|---|---|---|---|
| A0 | Address input | GPIO | Connect directly to VCC or ground |
| A1 | Address input | GPIO | Connect directly to VCC or ground |
| A2 | Address input | GPIO | Connect directly to VCC or ground |
| P0 | P-port input-output | GPIO | Push-pull design structure. At power on, P0 is configured as an input. |
| P1 | P-port input-output | GPIO | Push-pull design structure. At power on, P1 is configured as an input. |
| P2 | P-port input-output | GPIO | Push-pull design structure. At power on, P2 is configured as an input. |
| P3 | P-port input-output | GPIO | Push-pull design structure. At power on, P3 is configured as an input. |
| GND | Ground | GND | |
| P4 | P-port input-output | GPIO | Push-pull design structure. At power on, P4 is configured as an input. |
| P5 | P-port input-output | GPIO | Push-pull design structure. At power on, P5 is configured as an input. |
| P6 | P-port input-output | GPIO | Push-pull design structure. At power on, P6 is configured as an input. |
| P7 | P-port input-output | GPIO | Push-pull design structure. At power on, P7 is configured as an input. |
| INT | Interrupt output | GPIO | Connect to VCC through a pullup resistor |
| SCL | Serial clock bus | I2C | Connect to VCC through a pullup resistor |
| SDA | Serial data bus | I2C | Connect to VCC through a pullup resistor |
| VCC | Supply voltage | POWER |
Interactive pinout
Highlight:
TCA9534
Click a pin to copy its name · tap a tag above to spotlight a bus.