PCA9557PWT
IC XPND 400KHZ I2C SMBUS 16TSSOPManufacturer: Texas Instruments
Categories: I/O Expanders
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Texas Instruments PCA9557PWT is an 8-bit I/O expander, operating via I2C and SMBus interfaces with a maximum clock frequency of 400 kHz. This component is designed for efficient expansion of microcontroller I/O capabilities. It features 8 general-purpose I/O pins that can be configured as inputs or outputs. The output drivers support both open-drain and push-pull configurations, with source and sink current capabilities of 10mA and 25mA respectively. A power-on reset (POR) circuit ensures reliable initialization. The PCA9557PWT is housed in a 16-TSSOP package, suitable for surface mounting. Its operating temperature range is -40°C to 85°C, and it operates with a supply voltage between 2.3V and 5.5V. This device finds application in industrial automation, consumer electronics, and automotive systems requiring expanded digital I/O.
Additional Information
Series: -RoHS Status: ROHS3 CompliantManufacturer Lead Time: No lead time information availableProduct Status: ObsoletePackaging: Tape & Reel (TR)Datasheet:Download Free CAD Model:
Technical Details:
| Features | POR |
| Packaging | Tape & Reel (TR) |
| Package / Case | 16-TSSOP (0.173"", 4.40mm Width) |
| Output Type | Open Drain, Push-Pull |
| Mounting Type | Surface Mount |
| Interface | I2C, SMBus |
| Number of I/O | 8 |
| Operating Temperature | -40°C ~ 85°C |
| Voltage - Supply | 2.3V ~ 5.5V |
| Clock Frequency | 400 kHz |
| Interrupt Output | No |
| Supplier Device Package | 16-TSSOP |
| Current - Output Source/Sink | 10mA, 25mA |
| Programmable | Not Verified |