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| PartNumber | PCA9557BS,118 | PCA9557BSHP | PCA9557BS |
| Description | Interface - I/O Expanders 8-BIT I2C FM TP GPIO RST | Interface - I/O Expanders 8-bit I2C-bus and SMBus I/O port with reset | 8 I/O, PIA-GENERAL PURPOSE, PQCC16 |
| Manufacturer | NXP | NXP | NXP |
| Product Category | Interface - I/O Expanders | Interface - I/O Expanders | Interface - I/O Expanders |
| RoHS | Y | - | - |
| Number of I/Os | 8 I/O | - | - |
| Interface Type | I2C, Serial, SMBus | - | - |
| Maximum Clock Frequency | 400 kHz | - | - |
| Operating Supply Voltage | 2.3 V to 5.5 V | - | - |
| Minimum Operating Temperature | - 40 C | - | - |
| Maximum Operating Temperature | + 85 C | - | - |
| Mounting Style | SMD/SMT | - | - |
| Package / Case | HVQFN-16 | - | - |
| Packaging | Reel | - | - |
| Input Voltage | 5 V | - | - |
| Output Current | 50 mA | - | - |
| Output Voltage | 5 V | - | - |
| Brand | NXP Semiconductors | NXP Semiconductors | - |
| Logic Family | PCA9557 | - | - |
| Logic Type | I2C, SMBus | - | - |
| Pd Power Dissipation | 200 mW | - | - |
| Product Type | I/O Expanders | I/O Expanders | - |
| Factory Pack Quantity | 6000 | - | - |
| Subcategory | Interface ICs | Interface ICs | - |
| Part # Aliases | 935272775118 | - | - |
| Unit Weight | 0.001270 oz | 0.001313 oz | - |