| PartNumber | PCA9538DBR | PCA9538DB | PCA9538DBRG4 |
| Description | Interface - I/O Expanders Rem 8B I2C & SMBus Lo-Pwr I/O Expander | Interface - I/O Expanders Rem 8B I2C & SMBus Lo-Pwr I/O Expander | Interface - I/O Expanders Rem 8B I2C & SMBus Lo-Pwr I/O Expander |
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Category | Interface - I/O Expanders | Interface - I/O Expanders | Interface - I/O Expanders |
| RoHS | Y | Y | Y |
| Number of I/Os | 8 I/O | 8 I/O | 8 I/O |
| Interface Type | I2C, Serial, SMBus | I2C, Serial, SMBus | I2C, Serial, SMBus |
| Maximum Clock Frequency | 400 kHz | 400 kHz | 400 kHz |
| Operating Supply Voltage | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | SSOP-16 | SSOP-16 | SSOP-16 |
| Packaging | Reel | Tube | Reel |
| Features | Configuration Registers, Interrupt Pin, Reset Pin | Configuration Registers, Interrupt Pin, Reset Pin | - |
| Series | PCA9538 | PCA9538 | PCA9538 |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Logic Family | PCA9538 | PCA9538 | PCA9538 |
| Product Type | I/O Expanders | I/O Expanders | I/O Expanders |
| Factory Pack Quantity | 2000 | 80 | 2000 |
| Subcategory | Interface ICs | Interface ICs | Interface ICs |
| Unit Weight | 0.004536 oz | 0.004536 oz | 0.004536 oz |