PCA9555DW vs TCA9555PWR Comparison
Detailed side-by-side comparison of PCA9555DW by Texas Instruments and TCA9555PWR 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 | PCA9555DW | TCA9555PWR |
|---|---|---|
| Brand | Texas Instruments | Texas Instruments |
| Category | Interface ICs | Interface ICs |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $0.00 | $0.79 |
| 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 | Yes, active-low open-drain INT |
| Weak Pull-up Registers | Configurable | — |
| Configuration Registers | Input/output, polarity and port configuration | Yes (direction, polarity, mask) |
| Output Drive | Push-pull outputs | — |
| Operating Temperature Range | -40°C to +85°C | — |
| Package | 24-pin SOIC (DW) | 24-pin TSSOP (PW) |
| Package Type | SOIC | — |
| Pin Count | 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] | — |
| AEC-Q100 Qualification | [DATA_NEEDED: AEC-Q100 qualification] | — |
| 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 |
| 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 |
| MSL Level | — | 1 (260 C, unlimited floor life per JEDEC J-STD-020) |
| REACH | — | Compliant |