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| Part Number | PCA9557D | PCA9557DB | PCA9557DT | PCA9557DR | PCA9554D |
|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | NXP USA Inc. |
| Product Status | Active | Active | Active | Active | Active |
| Number of I/O | 8 | 8 | 8 | 8 | - |
| Interface | I²C, SMBus | I²C, SMBus | I²C, SMBus | I²C, SMBus | - |
| Interrupt Output | No | No | No | No | - |
| Features | POR | POR | POR | POR | - |
| Output Type | Open Drain, Push-Pull | Open Drain, Push-Pull | Open Drain, Push-Pull | Open Drain, Push-Pull | - |
| Current - Output Source/Sink | 10mA, 25mA | 10mA, 25mA | 10mA, 25mA | 10mA, 25mA | - |
| Clock Frequency | 400 kHz | 400 kHz | 400 kHz | 400 kHz | - |
| Voltage - Supply | 2.3V ~ 5.5V | 2.3V ~ 5.5V | 2.3V ~ 5.5V | 2.3V ~ 5.5V | - |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | - |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | - |
| Package / Case | 16-SOIC (0.154", 3.90mm Width) | 16-SSOP (0.209", 5.30mm Width) | 16-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.154", 3.90mm Width) | - |
| Supplier Device Package | 16-SOIC | 16-SSOP | 16-SOIC | 16-SOIC | - |
