Overview
The PCA9703PW/Q900,118 is a 16-bit General Purpose Input (GPI) shift register designed by NXP USA Inc. This component is part of the PCA9703 series and is specifically tailored for monitoring the status of switch inputs in various electronic systems. It features an SPI serial interface and an interrupt output, making it a versatile solution for expanding the I/O capabilities of microcontroller-based systems.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Part Number | PCA9703PW/Q900,118 | - |
| Manufacturer | NXP USA Inc. | - |
| Package / Case | 24-TSSOP (0.173", 4.40mm Width) | - |
| Packaging | Tape & Reel (TR) | - |
| Mounting Type | Surface Mount | - |
| Interface | SPI Serial | - |
| Number of I/O | 16 (Input Only) | - |
| Supply Voltage | 4.5 V to 5.5 V | - |
| Clock Frequency | Up to 5 MHz | - |
| Interrupt Output | Yes, Open-Drain | - |
| Operating Temperature | -40°C to +125°C | - |
| Input Voltage Tolerance | Up to 18 V | - |
Key Features
- SPI Serial Interface: Allows for easy communication with microcontrollers.
- 16 Input-Only I/O Pins: Monitors the status of up to 16 switch inputs.
- Interrupt Output: Generates an interrupt when the input port status changes, with the ability to mask selected inputs.
- 18 V Input Tolerance: Each input port has 18 V breakdown ESD protection, allowing it to tolerate various voltage conditions.
- Low Power Consumption: Operates with a supply current of typically 2.5 μA at VDD = 5.5 V.
- Flexible Interrupt Handling: The interrupt output is enabled/disabled via the INT_EN pin, and selected inputs can be masked to not generate interrupts.
Applications
- Microcontroller-Based Systems: Expands the I/O capabilities of microcontrollers in various applications.
- Industrial Automation and Control: Suitable for monitoring switch inputs in industrial automation systems.
- Consumer Electronics: Used in consumer electronics for input monitoring and I/O expansion.
Q & A
- What is the PCA9703PW/Q900,118 used for?
The PCA9703PW/Q900,118 is used to monitor the status of switch inputs and expand the I/O capabilities of microcontroller-based systems.
- What is the interface type of the PCA9703PW/Q900,118?
The interface type is SPI serial.
- How many input-only I/O pins does the PCA9703PW/Q900,118 have?
The PCA9703PW/Q900,118 has 16 input-only I/O pins.
- What is the supply voltage range for the PCA9703PW/Q900,118?
The supply voltage range is 4.5 V to 5.5 V.
- What is the maximum clock frequency of the PCA9703PW/Q900,118?
The maximum clock frequency is up to 5 MHz.
- Does the PCA9703PW/Q900,118 have an interrupt output?
Yes, it has an open-drain interrupt output.
- How does the interrupt output work on the PCA9703PW/Q900,118?
The interrupt output is asserted when an input port status changes, the input is not masked, and the interrupt output is enabled via the INT_EN pin.
- What is the input voltage tolerance of the PCA9703PW/Q900,118?
The input ports can tolerate up to 18 V.
- What is the operating temperature range of the PCA9703PW/Q900,118?
The operating temperature range is -40°C to +125°C.
- How is the PCA9703PW/Q900,118 packaged?
The component is packaged in a 24-TSSOP (0.173", 4.40mm Width) and is available in Tape & Reel (TR) packaging.
