PCA9555DWR vs PCF8575DWR Comparison
Detailed side-by-side comparison of PCA9555DWR by Texas Instruments and PCF8575DWR 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 | PCA9555DWR | PCF8575DWR |
|---|---|---|
| Brand | Texas Instruments | Texas Instruments |
| Category | Interface ICs | Interface ICs |
| Lifecycle Status | Active | Active |
| Device Type | 16-bit I2C/SMBus I/O expander | — |
| Supply Voltage Range | 2.3 V to 5.5 V | — |
| I/O Port Count | 16 bits | — |
| Port Organization | 2 x 8-bit ports | — |
| Bus Interface | I2C/SMBus | — |
| Maximum Bus Frequency | 400 kHz | — |
| Interrupt Output | Active-low, open-drain | Open drain |
| Weak Pull-up Registers | Configurable | — |
| Configuration Registers | Input/output, polarity and port configuration | — |
| Output Drive | Push-pull outputs | — |
| Operating Temperature Range | -40°C to +85°C | — |
| Package | 24-pin SOIC (DW) | 24-pin SOIC (DW) |
| Package Type | SOIC | — |
| Pin Count | 24 pins | 24 pins |
| Mounting Type | Surface mount | Surface mount |
| Low Standby Current | 1 µA maximum | — |
| RoHS Status | [DATA_NEEDED: RoHS status] | Compliant |
| REACH Status | [DATA_NEEDED: REACH status] | [DATA_NEEDED: REACH compliance status] |
| AEC-Q100 Qualification | [DATA_NEEDED: AEC-Q100 qualification] | [DATA_NEEDED: AEC-Q100 qualification status] |
| Number of I/O Lines | — | 16 lines |
| Interface Type | — | I2C and SMBus |
| Operating Supply Voltage | — | 2.5 V to 5.5 V |
| Maximum I2C Bus Frequency | — | 400 kHz |
| Maximum Standby Current | — | 10 uA |
| Hardware Address Inputs | — | 3 address pins |
| Maximum Devices per Bus | — | 8 devices |
| Operating Temperature | — | -40 C to +85 C |
| Output Drive Capability | — | [DATA_NEEDED: output current rating] |
| Output Port Configuration | — | Latched quasi-bidirectional |
| Active-High Output Mechanism | — | Current source to VCC |
| LED Direct Drive | — | Supported |
| Lead-Free Status | — | [DATA_NEEDED: lead-free status] |
| Halogen-Free Status | — | [DATA_NEEDED: halogen-free status] |