PCA8574D,518 vs PCF8574DW Comparison
Detailed side-by-side comparison of PCA8574D,518 by NXP Semiconductors and PCF8574DW by Texas Instruments. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
NXP Semiconductors
PCA8574D,518 - 8-Bit I2C I/O Expander 400kHz SO16 | NXP
PCA8574D,518 ✗ End of LifeSpecification Comparison
| Parameter | PCA8574D,518 | PCF8574DW |
|---|---|---|
| Brand | NXP Semiconductors | Texas Instruments |
| Category | Interface ICs | Interface ICs |
| Lifecycle Status | End of Life | Active |
| Function | Remote 8-bit I/O expander for I2C-bus with interrupt | — |
| Number of I/O | 8 (quasi-bidirectional) | — |
| Interface | I2C (2-wire, SCL/SDA) | I2C two-line bidirectional bus |
| Clock Frequency | 400 kHz | — |
| Supply Voltage | 2.3 V to 5.5 V | — |
| Hardware Address Pins | 3 (A0, A1, A2) | — |
| Interrupt Output | Yes, open-drain active-low | Open-drain |
| Port Type | Quasi-bidirectional, independently assignable | — |
| Max Devices per Bus | 8 (16 with PCA8574A variant) | — |
| Package | 16-SOIC (SO16, 7.50 mm width) | 16-SOIC |
| Mounting Type | Surface Mount | Surface mount |
| Packaging | Tape & Reel | — |
| Lifecycle Status | End of Life (per NXP product page) | — |
| RoHS Status | Compliant | — |
| Operating Temperature | [DATA_NEEDED: operating temperature range] | [DATA_NEEDED: operating temperature range] |
| Product Type | — | 8-bit I2C I/O expander |
| Number of I/O Ports | — | 8 |
| I2C Maximum Clock Frequency | — | 100 kHz |
| Operating Supply Range | — | 2.5 V to 6 V VCC |
| Product-Page Supply Range | — | 2.5 V to 5.5 V |
| Port Architecture | — | Quasi-bidirectional I/O |
| Standby Current | — | 10 µA maximum |
| Pin Count | — | 16 pins |
| Application Category | — | I/O expander |
| Bus | — | I2C/SMBus |
| Port Names | — | P0 through P7 |
| Manufacturer | — | Texas Instruments |
| Compliance Information | — | [DATA_NEEDED: RoHS status] |