TCA9555PWR vs PCA9555DW Comparison
Detailed side-by-side comparison of TCA9555PWR 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 | TCA9555PWR | PCA9555DW |
|---|---|---|
| Brand | Texas Instruments | Texas Instruments |
| Category | Interface ICs | Interface ICs |
| Lifecycle Status | Active | Active |
| Function | 16-bit I2C/SMBus I/O expander | — |
| Number of I/O | 16 | — |
| Interface | I2C, SMBus | — |
| Maximum Clock Frequency | 400 kHz (TI) / 1 MHz (UMW second-source) | — |
| I2C Address Pins | 3 (A0, A1, A2) - up to 8 devices per bus | — |
| Interrupt Output | Yes, active-low open-drain INT | Active-low, open-drain |
| Configuration Registers | Yes (direction, polarity, mask) | Input/output, polarity and port configuration |
| Weak Pull-up Resistors | Programmable per port | — |
| Supply Voltage (VCC) | 1.65 V to 5.5 V | — |
| Output Current per Bit | -25 mA to +25 mA (sink/source) | — |
| I/O Voltage Tolerance | 5 V tolerant | — |
| Operating Temperature | -40 C to +85 C | — |
| Package | 24-pin TSSOP (PW) | 24-pin SOIC (DW) |
| Mounting Type | Surface Mount | Surface mount |
| MSL Level | 1 (260 C, unlimited floor life per JEDEC J-STD-020) | — |
| RoHS Status | Compliant | [DATA_NEEDED: RoHS status] |
| REACH | Compliant | — |
| 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 |
| 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 |
| REACH Status | — | [DATA_NEEDED: REACH status] |
| AEC-Q100 Qualification | — | [DATA_NEEDED: AEC-Q100 qualification] |