PCA9557PW, 118 is an I2C bus controller with 8 input/output (IO) ports. Here are some parameter introductions, performance, and applications of the product: Parameter Introduction: 1. Package Type: TSSOP-16 Package. 2. Input/output ports: It has 8 independent IO ports, which can be configured as input or output respectively. . 3. Input voltage range: 0 to 5V. 4. Output voltage range: 0 to 5V. 5. Input current range: -10mA to 10mA. 6. Output current range: -25mA to 25mA. 7. Operating temperature range: -40 ° C to+85 ° C. Performance: 1. I2C bus compatibility: Complies with the I2C bus standard and can communicate with other I2C devices. . 2. High speed data transmission: Supports I2C communication rates of 100kHz and 400kHz. 3. Multiple configuration options: can be configured as input or output modes, as well as multiple different input/output polarities. 4. Low power consumption: In static mode, the power consumption of the entire chip is very low, suitable for battery powered applications. Application: 1. Expanding IO ports: More IO ports can be added to existing microcontroller or microprocessor systems through PCA9557PW, 118 to expand the system's input/output capabilities. . 2. Level conversion: It can be used for level conversion between different voltage domains, such as connecting a 5V system to a 3.3V system. . 3. Control external devices: can be used to control various external devices, such as LED lights, relays, drivers, etc. 4. Keyboard/key scanning: can be used to scan and detect the status of the keyboard or buttons. . 5. Battery powered devices: Due to their low power consumption characteristics, they are suitable for battery powered devices such as portable electronic devices, wireless sensor networks, etc. PCA9557PW, 118 is a powerful I2C bus controller suitable for various applications that require expanding IO ports, level conversion, and controlling external devices. Meanwhile, due to its low power consumption characteristics, it is also suitable for battery powered devices.
|
