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TCA6408A I/O Expander
TCA6408A
Texas Instrumentsinterface io display
The TCA6408A is an I2C and SMBus expander with 8-bit parallel I/O, providing GPIO expansion for low-voltage systems.
In stock
Specifications
8- Operating Voltage
- 1.65 V to 5.5 V
- Supply Current
- 3.6 μA (typical) at 3.3 V, 20 μA (max) μA
- Interface
- I2C
- Resolution
- N/A
- Range
- 1.65 V to 5.5 V for I2C pins, 1.65 V to 5.5 V for P-ports V
- Accuracy
- N/A
- Temperature Range
- -40°C to 85°C (operating) °C
- Package
- TSSOP, VQFN, UQFN
Pinout
16| Pin | Name | Functions | Notes |
|---|---|---|---|
| ADDR | Address input | GPIO | Connect directly to VCCP or ground. |
| GND | Ground | GND | |
| INT | Interrupt output | GPIO | Connect to VCCI through a pull-up resistor. |
| P0 | P-port input/output (push-pull design structure) | GPIO | At power on, P0 is configured as an input. |
| P1 | P-port input/output (push-pull design structure) | GPIO | At power on, P1 is configured as an input. |
| P2 | P-port input/output (push-pull design structure) | GPIO | At power on, P2 is configured as an input. |
| P3 | P-port input/output (push-pull design structure) | GPIO | At power on, P3 is configured as an input. |
| P4 | P-port input/output (push-pull design structure) | GPIO | At power on, P4 is configured as an input. |
| P5 | P-port input/output (push-pull design structure) | GPIO | At power on, P5 is configured as an input. |
| P6 | P-port input/output (push-pull design structure) | GPIO | At power on, P6 is configured as an input. |
| P7 | P-port input/output (push-pull design structure) | GPIO | At power on, P7 is configured as an input. |
| RESET | Active-low reset input | GPIO | Connect to VCCI through a pull-up resistor, if no active connection is used. |
| SCL | Serial clock bus | I2C | Connect to VCCI through a pull-up resistor. |
| SDA | Serial data bus | I2C | Connect to VCCI through a pull-up resistor. |
| VCCI | Supply voltage of I2C bus | POWER | Connect directly to the VCC of the external I2C controller. Provides voltage level translation. |
| VCCP | Supply voltage of TCA6408A for P-ports | POWER |
Interactive pinout
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TCA6408A
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