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| Part Number | PCA9557PWR | PCA9557PWT | PCA9554PWR | PCA9555PWR | PCA9557PW |
|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Status | Active | Active | Not For New Designs | Not For New Designs | Active |
| Number of I/O | 8 | 8 | 8 | 16 | 8 |
| Interface | I²C, SMBus | I²C, SMBus | I²C, SMBus | I²C, SMBus | I²C, SMBus |
| Interrupt Output | No | No | Yes | Yes | No |
| Features | POR | POR | POR | POR | POR |
| Output Type | Open Drain, Push-Pull | Open Drain, Push-Pull | Push-Pull | Push-Pull | Open Drain, Push-Pull |
| Current - Output Source/Sink | 10mA, 25mA | 10mA, 25mA | 10mA, 25mA | 10mA, 25mA | 10mA, 25mA |
| Clock Frequency | 400 kHz | 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 | 2.3V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C | -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 | Surface Mount |
| Package / Case | 16-TSSOP (0.173", 4.40mm Width) | 16-TSSOP (0.173", 4.40mm Width) | 16-TSSOP (0.173", 4.40mm Width) | 24-TSSOP (0.173", 4.40mm Width) | 16-TSSOP (0.173", 4.40mm Width) |
| Supplier Device Package | 16-TSSOP | 16-TSSOP | 16-TSSOP | 24-TSSOP | 16-TSSOP |
