PCA9539DW vs PCA9555DWR Comparison
Detailed side-by-side comparison of PCA9539DW 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 | PCA9539DW | PCA9555DWR |
|---|---|---|
| Brand | Texas Instruments | Texas Instruments |
| Category | Interface ICs | Interface ICs |
| Lifecycle Status | Active | Active |
| Product Type | 16-bit I/O expander | — |
| I/O Pin Count | 16 pins | — |
| Supply Voltage Range | 2.3 V to 5.5 V | 2.3 V to 5.5 V |
| Serial Bus Interface | I2C/SMBus | — |
| Maximum Bus Clock | 400 kHz | — |
| Output Configuration | Push-pull | — |
| Output Source Current | 10 mA and 25 mA options | — |
| Output Sink Current | 10 mA and 25 mA options | — |
| Interrupt | Yes | — |
| Reset | Yes | — |
| Configuration Registers | Yes | Input/output, polarity and port configuration |
| Power-On Reset | Yes | — |
| Internal I/O Pull-Up Resistors | Removed according to TI product comparison | — |
| Operating Temperature | -40 C to +85 C | — |
| Package | 24-pin SOIC (DW) | 24-pin SOIC (DW) |
| Mounting Type | Surface Mount | Surface mount |
| RoHS Status | [DATA_NEEDED: RoHS status] | [DATA_NEEDED: RoHS status] |
| REACH Status | [DATA_NEEDED: REACH status] | [DATA_NEEDED: REACH status] |
| Device Type | — | 16-bit I2C/SMBus I/O expander |
| 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 |
| Weak Pull-up Registers | — | Configurable |
| Output Drive | — | Push-pull outputs |
| Operating Temperature Range | — | -40°C to +85°C |
| Package Type | — | SOIC |
| Pin Count | — | 24 pins |
| Low Standby Current | — | 1 µA maximum |
| AEC-Q100 Qualification | — | [DATA_NEEDED: AEC-Q100 qualification] |