Description
PCA9554PWR 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 | 1.935 |
| 100 — 249 | 1.598 |
| 250 — 999 | 1.148 |
| 1,000 + | 0.48 |
The above prices are for reference only.
Specifications
| Manufacturer | Texas Instruments |
| Product Category | Interface - I/O Expanders |
| RoHS | Y |
| Number of I/Os | 8 I/O |
| Interface Type | I2C, Serial, SMBus |
| Maximum Clock Frequency | 400 kHz |
| Operating Supply Voltage | 2.3 V to 5.5 V |
| Minimum Operating Temperature | - 40 C |
| Maximum Operating Temperature | + 85 C |
| Mounting Style | SMD/SMT |
| Package / Case | TSSOP-16 |
| Packaging | Reel |
| Features | Configuration Registers, Interrupt Pin |
| Product | I/O Expanders |
| Series | PCA9554 |
| Type | I/O Expander |
| Brand | Texas Instruments |
| Logic Family | PCA9554 |
| Product Type | I/O Expanders |
| Factory Pack Quantity | 2000 |
| Subcategory | Interface ICs |
| Unit Weight | 0.002183 oz |
For more information, please refer to datasheet
Documents
| PCA9554PWR 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.
