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| PartNumber | PCA9557RGVR | PCA9557RGYR | PCA9557RGVRG4 |
| Description | Interface - I/O Expanders Remote 8-Bit I2C and SMBus LP I/O Exp | Interface - I/O Expanders Remote 8B I2C & SMBus Lo-Pwr I/O Exp | I2C and SMBus Low Power I/O Expander 16-Pin VQFN EP T/R (Alt: PCA9557RGVRG4) |
| Manufacturer | Texas Instruments | Texas Instruments | - |
| Product Category | Interface - I/O Expanders | Interface - I/O Expanders | - |
| RoHS | Y | Y | - |
| Number of I/Os | 8 I/O | 8 I/O | - |
| Interface Type | I2C, Serial, SMBus | I2C, Serial, SMBus | - |
| Maximum Clock Frequency | 400 kHz | 400 kHz | - |
| Operating Supply Voltage | 2.5 V to 6 V | 2.5 V to 6 V | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | VQFN-16 | VQFN-16 | - |
| Packaging | Reel | Reel | - |
| Features | Configuration Registers, Interrupt Pin | Configuration Registers, Interrupt Pin | - |
| Product | I/O Expanders | I/O Expanders | - |
| Series | PCA9557 | PCA9557 | - |
| Type | I/O Expander | I/O Expander | - |
| Brand | Texas Instruments | Texas Instruments | - |
| Logic Family | PCA9557 | PCA9557 | - |
| Moisture Sensitive | Yes | Yes | - |
| Product Type | I/O Expanders | I/O Expanders | - |
| Factory Pack Quantity | 2500 | 3000 | - |
| Subcategory | Interface ICs | Interface ICs | - |
| Unit Weight | 0.001312 oz | 0.001312 oz | - |
| Input Voltage | - | 6 V | - |
| Output Voltage | - | 6 V | - |