PCF8574DW vs PCA8574D-T Comparison
Detailed side-by-side comparison of PCF8574DW by Texas Instruments and PCA8574D-T by NXP Semiconductors. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Specification Comparison
| Parameter | PCF8574DW | PCA8574D-T |
|---|---|---|
| Brand | Texas Instruments | NXP Semiconductors |
| Category | Interface ICs | Interface ICs |
| Lifecycle Status | Active | End of Life |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $1.10 | $0.98 |
| 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 | — |
| Interface | I2C two-line bidirectional bus | I2C-bus (2-line: SCL, SDA) |
| Port Architecture | Quasi-bidirectional I/O | — |
| Interrupt Output | Open-drain | Yes (open-drain INT) |
| Standby Current | 10 µA maximum | — |
| Package | 16-SOIC | SO16 (SOIC-16) |
| Pin Count | 16 pins | — |
| Mounting Type | Surface mount | Surface Mount |
| Application Category | I/O expander | — |
| Bus | I2C/SMBus | — |
| Port Names | P0 through P7 | — |
| Manufacturer | Texas Instruments | — |
| Compliance Information | [DATA_NEEDED: RoHS status] | — |
| Operating Temperature | [DATA_NEEDED: operating temperature range] | [DATA_NEEDED: operating temperature range] |
| Function | — | Remote 8-bit I/O expander for I2C-bus with interrupt |
| Number of I/O | — | 8 (quasi-bidirectional) |
| I2C Bus Speed | — | 400 kHz (Fast-mode) |
| Address Pins | — | 3 (A0, A1, A2) |
| Max Devices per Bus (PCA8574/74A) | — | 16 (up to 128 I/Os) |
| Supply Voltage Range | — | [DATA_NEEDED: supply voltage range] |
| Output Type | — | Quasi-bidirectional, latched |
| Packaging | — | Tape and Reel (-T suffix) |
| RoHS Status | — | unknown |
| MSL Level | — | [DATA_NEEDED: moisture sensitivity level] |
| Lifecycle Status | — | End of Life (per NXP product page) |