Description
PCA9554DB Texas Instruments - Yeehing Electronics
8-bit 2.3- to 5.5-V I2C/SMBus I/O expander with interrupt, weak pull-up & config registers
Pricing (USD)
| Quantity | Unit Price |
| 1 — 99 | 2.177 |
| 100 — 249 | 1.798 |
| 250 — 999 | 1.292 |
| 1,000 + | 0.68 |
The above prices are for reference only.
Specifications
| Manufacturer | NXP |
| Product Category | Interface - I/O Expanders |
| RoHS | Y |
| Maximum Clock Frequency | 400 kHz |
| Minimum Operating Temperature | - 40 C |
| Maximum Operating Temperature | + 85 C |
| Mounting Style | SMD/SMT |
| Package / Case | SSOP-16 (SOT-338-1) |
| Packaging | Reel |
| Series | PCA9554 |
| Brand | NXP Semiconductors |
| Product Type | I/O Expanders |
| Factory Pack Quantity | 2000 |
| Subcategory | Interface ICs |
| Part # Aliases | 935269193118 |
| Unit Weight | 0.004463 oz |
For more information, please refer to datasheet
Documents
| PCA9554DB Datasheet |
More Information
INT can be connected to the interrupt input of a microcontroller. By sending an interrupt signal on this line, the remote I/O can inform the microcontroller if there is incoming data on its ports without having to communicate via the I2C bus. Thus, the PCA9554 can remain a simple slave device.
