PCA9557PW
8-bit I²C-bus and SMBus I/O port with reset
Key details
| Part Number | PCA9557PW |
|---|---|
| Manufacturer | NXP Semiconductors |
| Category | I/O Expander |
| Lifecycle Status | Production |
| Series | PCA9557 |
| Package / Case | 16-lead TSSOP, tape and reel |
| Pin Count | 16 |
| Operating Temperature | -40°C to +85°C |
| Last Verified | 2026-08-04 |
Part information
PCA9557PW Overview
PCA9557PW is a NXP Semiconductors 8-bit I²C-bus and SMBus I/O port with reset supplied in 16-lead TSSOP, tape and reel. This page uses the exact orderable code because package, grade, temperature and option suffixes can change compatibility.
Key Technical Specifications
| Verified Ordering Code | PCA9557PW,118 |
|---|---|
| I/O Channels | 8 |
| Supply Voltage Range | 2.3 V to 5.5 V |
| Maximum I²C Clock Frequency | 400 kHz |
| I/O Tolerance | 5 V tolerant |
| Control Feature | Active-low reset input |
Package and Ordering Notes
The listed package is 16-lead TSSOP, tape and reel with 16 pins, leads, lands or contacts. The featured image is a generic package illustration for form-factor identification and is not an actual date-code or lot photograph. The part or family is listed by NXP Semiconductors as Production at the verification date.
Sourcing Guidance
PCA9557PW,118 is the manufacturer-verified ordering identity for this record. Confirm package, packing, label traceability, date code, lifecycle, and datasheet revision before ordering.
For an accurate quotation, include the full MPN, target quantity, acceptable date-code range, packaging format and destination. Icearth can help review traceability documents, label photos and electrical/package alignment before order placement.
Manufacturer Documentation
Technical values were checked against NXP Semiconductors documentation. Use the linked datasheet as the controlling source and re-check revisions before PCB release or firmware qualification.
Related Product Resources
Browse the NXP Semiconductors product archive or the I/O Expander category for precisely classified internal resources. Related family codes are not presented as substitutes unless the manufacturer explicitly identifies them.
PCA9557PW FAQ
What is PCA9557PW?
PCA9557PW is a NXP Semiconductors 8-bit I²C-bus and SMBus I/O port with reset. The scheduled model is PCA9557PW; the verified orderable code is PCA9557PW,118.
What are the key specifications of PCA9557PW?
Verified Ordering Code is PCA9557PW,118, while I/O Channels is 8. Use the linked manufacturer datasheet for revision-controlled limits and test conditions.
What package does PCA9557PW use?
PCA9557PW,118 is supplied in 16-lead TSSOP, tape and reel with 16 pins, leads, lands or contacts. Verify the manufacturer drawing and packing format before PCB or procurement approval.
What is the lifecycle status of PCA9557PW?
PCA9557PW is listed by the manufacturer as an active production device as checked on 2026-08-04. Confirm factory support and availability for the exact order code before ordering.
What should be checked before sourcing PCA9557PW?
Quote PCA9557PW,118 exactly and confirm package, packing, marking, date code, traceability, lifecycle status, and the controlling datasheet revision. Do not substitute a related family code without an independent electrical and mechanical review.
Lifecycle and sourcing review
Lifecycle information is shown for reference. Confirm current manufacturer documentation, availability and technical suitability before purchase.
PCA9557PW,118 is the manufacturer-verified ordering identity for this record. Confirm package, packing, label traceability, date code, lifecycle, and datasheet revision before ordering.