PCF8575DWR vs PCA9555DW Comparison
Detailed side-by-side comparison of PCF8575DWR by Texas Instruments and PCA9555DW 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 | PCF8575DWR | PCA9555DW |
|---|---|---|
| Brand | Texas Instruments | Texas Instruments |
| Category | Interface ICs | Interface ICs |
| Lifecycle Status | Active | Active |
| 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 | — |
| Interrupt Output | Open drain | Active-low, open-drain |
| Hardware Address Inputs | 3 address pins | — |
| Maximum Devices per Bus | 8 devices | — |
| Operating Temperature | -40 C to +85 C | — |
| Package | 24-pin SOIC (DW) | 24-pin SOIC (DW) |
| Pin Count | 24 pins | 24 pins |
| Mounting Type | Surface mount | Surface mount |
| 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 | — |
| RoHS Status | Compliant | [DATA_NEEDED: RoHS status] |
| REACH Status | [DATA_NEEDED: REACH compliance status] | [DATA_NEEDED: REACH status] |
| AEC-Q100 Qualification | [DATA_NEEDED: AEC-Q100 qualification status] | [DATA_NEEDED: AEC-Q100 qualification] |
| Lead-Free Status | [DATA_NEEDED: lead-free status] | — |
| Halogen-Free Status | [DATA_NEEDED: halogen-free status] | — |
| 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 |
| 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 Type | — | SOIC |
| Low Standby Current | — | 1 µA maximum |