PCF8575DW vs PCA9555DWR Comparison
Detailed side-by-side comparison of PCF8575DW by Texas Instruments and PCA9555DWR by Texas Instruments. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Specification Comparison
| Parameter | PCF8575DW | PCA9555DWR |
|---|---|---|
| Brand | Texas Instruments | Texas Instruments |
| Category | Interface ICs | Interface ICs |
| Lifecycle Status | Active | Active |
| Stock Status | — | In Stock |
| Unit Price (USD) | — | $2.46 |
| Device Type | Remote 16-bit I2C/SMBus I/O expander | 16-bit I2C/SMBus I/O expander |
| Number of I/O Lines | 16 | — |
| Supply Voltage Range | 2.5 V to 5.5 V | 2.3 V to 5.5 V |
| I2C Maximum Clock Frequency | 400 kHz | — |
| Interface | I2C/SMBus | — |
| Interrupt Output | Open-drain | Active-low, open-drain |
| Hardware Address Pins | 3 | — |
| Maximum Addressable Devices | 8 devices | — |
| Standby Current | 10 uA maximum | — |
| Output Type | Latched | — |
| Output Drive Capability | High-current drive capability | — |
| Output High Configuration | Current source to VCC for active-high drive | — |
| Operating Temperature Range | -40 C to +85 C | -40°C to +85°C |
| Package | 24-pin SOIC | 24-pin SOIC (DW) |
| Package Type | SOIC | SOIC |
| Number of Pins | 24 | — |
| RoHS Status | RoHS-compliant | [DATA_NEEDED: RoHS status] |
| Supply Voltage | 3.3 V | — |
| Standby-Current Consumption | 10 uA maximum | — |
| I2C Bus Speed | 400 kHz fast mode | — |
| Addressing Method | Three hardware address pins | — |
| Input/Output Configuration | General-purpose remote digital I/O | — |
| I/O Port Count | — | 16 bits |
| Port Organization | — | 2 x 8-bit ports |
| Bus Interface | — | I2C/SMBus |
| Maximum Bus Frequency | — | 400 kHz |
| Weak Pull-up Registers | — | Configurable |
| Configuration Registers | — | Input/output, polarity and port configuration |
| Output Drive | — | Push-pull outputs |
| Pin Count | — | 24 pins |
| Mounting Type | — | Surface mount |
| Low Standby Current | — | 1 µA maximum |
| REACH Status | — | [DATA_NEEDED: REACH status] |
| AEC-Q100 Qualification | — | [DATA_NEEDED: AEC-Q100 qualification] |