Manufacturer package reference image
Order the PCA9557PW - 8-bit 2.3- to 5.5-V I2C/SMBus I/O expander with reset & config registers | PW | 16 | -40 to 85 from Texas Instruments.
Key Specifications
| Complete manufacturer part number | PCA9557PW |
|---|---|
| Manufacturer | Texas Instruments |
| Description | Order the PCA9557PW - 8-bit 2.3- to 5.5-V I2C/SMBus I/O expander with reset & config registers | PW | 16 | -40 to 85 from Texas Instruments. |
| Package / case | TSSOP (PW) |
| Product category | I2C & SPI general-purpose I/Os (GPIOs) |
| Pins | 16 |
| TI package code | PW |
| Number of I/Os | 8 |
| Features | Configuration registers, Interrupt pin |
| Addresses | 8 |
| Rating | Catalog |
| Frequency (max) (MHz) | 0.4 |
| Operating temperature (exact ordering record) | -40 to 85 °C |
| Standard quantity / packing | 90 | TUBE |
| In stock | 5,005 pcs |
| Unit price | Request a quote |
| Lead time | To be confirmed |
Technical documentation and image source
TI exact ordering page and explicitly identified base product page verified on 2026-11-04. Electrical fields refer to the named base product. Package and temperature refer to the exact ordering code. Package reference image is not a stock-lot photograph. Consult the datasheet for electrical limits and test conditions.
Manufacturer package reference image for TSSOP (PW). Confirm electrical pin functions in the datasheet. Actual lot appearance and top marking require current-lot confirmation.
Request a Quote
Why Source from CHIPER
- Quality inspection — every part is visually inspected and authenticity verified before shipment.
- Traceability — batch and date-code information provided on request.
- Shipping — worldwide shipping with major couriers (DHL / FedEx / UPS), fully insured.
- Payment — flexible terms including bank transfer (T/T) in major currencies.
- After-sales — dedicated support and RMA handling for every order.
Contact: xiaoqi@chiper-components.com · +86 18570555062