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PCA9557DR
PCA95xx I²C, SMBus Repeaters, Switches, Expanders
Texas Instruments PCA95xx I 2 C and SMBus devices consist of a variety of logic ICs, including repeaters, bidirectional translating switches, and I/O expanders. The TI PCA9515A dual bidirectional I 2 C and SMBus repeater is a BiCMOS IC intended for I 2 C and SMBus systems applications. The PCA9515A contains two identical bidirectional open-drain buffer circuits that enable I 2 C and similar bus systems to be extended without degradation of system performance. The TI PCA9544A and PCA9545A are quad bidirectional translating switches controlled via the I²C bus. The SCL/SDA upstream pair on the PCA9544A and PCA9545A fans out to four downstream pairs, or channels On the PCA9544a, one SCL/SDA pair can be selected at a time, and this is determined by the contents of the programmable control register. On the PCA9545A, any individual SCn/SDn channel or combination of channels can be selected, and this is determined by the contents of the programmable control register. The TI PCA9554A and PCA9557 are remote 8-bit I 2 C and SMBus expanders. The PCA9554A and PCA9557 provide general-purpose I/O expansion for most microcontroller families via the I 2 C interface.
| корпус | SOIC16 |
| Brand | Texas Instruments |
| ESD Protection | 2 kV |
| Factory Pack Quantity: Factory Pack Quantity | 2500 |
| Features | Configuration Registers, Interrupt Pin |
| Interface Type | I2C, Serial, SMBus |
| Interrupt Output | Without Interrupt |
| Logic Family | PCA9557 |
| Manufacturer | Texas Instruments |
| Maximum Clock Frequency | 400 kHz |
| Maximum Operating Temperature | +85 C |
| Minimum Operating Temperature | -40 C |
| Mounting Style | SMD/SMT |
| Number of I/Os | 8 I/O |
| Operating Supply Voltage | 2.5 V to 6 V |
| Package / Case | SOIC-Narrow-16 |
| Product Category | Interface-I/O Expanders |
| Product Type | I/O Expanders |
| Product | I/O Expanders |
| Series | PCA9557 |
| Subcategory | Interface ICs |
| Supply Voltage - Max | 6 V |
| Supply Voltage - Min | 2.5 V |
| Type | I/O Expander |
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