PCA9539DWR vs PCA9555DB Comparison
Detailed side-by-side comparison of PCA9539DWR by Texas Instruments and PCA9555DB by NXP Semiconductors. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Texas Instruments
PCA9539DWR - 16-Bit 2.3-5.5V I/O Expander | Texas Instruments (Tape & Reel)
PCA9539DWR ✓ Active
Specification Comparison
| Parameter | PCA9539DWR | PCA9555DB |
|---|---|---|
| Brand | Texas Instruments | NXP Semiconductors |
| 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 | — |
| 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 | — |
| 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) | — |
| Mounting Type | Surface Mount | Surface mount |
| RoHS Status | [DATA_NEEDED: RoHS status] | unknown |
| REACH Status | [DATA_NEEDED: REACH status] | unknown |
| Device Type | — | 16-bit I2C/SMBus GPIO expander with interrupt |
| GPIO Count | — | 16 bits |
| Operating Voltage Range | — | 2.3 V to 5.5 V |
| I2C Maximum Frequency | — | 400 kHz |
| I2C/SMBus Interface | — | Two-wire serial interface |
| I/O Port Configuration | — | Input or output per bit |
| I/O Port Tolerance | — | 5 V tolerant |
| Interrupt Output | — | Active-low, open-drain |
| Standby Current | — | 1 uA maximum |
| Package Type | — | SSOP-24 |
| Package Pitch | — | 1.0 mm |
| Device Pin Count | — | 24 pins |
| Serial Addressing | — | Seven-bit I2C address; [DATA_NEEDED: address table] |
| Operating Temperature Range | — | [DATA_NEEDED: operating temperature range] |
| AEC-Q100 Qualification | — | [DATA_NEEDED: automotive qualification status] |