Overview
The PCA9702PW,118 is a low-power, 18 V tolerant SPI General Purpose Input (GPI) shift register designed by NXP USA Inc. This component is specifically engineered to monitor the status of switch inputs and generate an interrupt when any of the switch inputs change state. It is part of the PCA9701/PCA9702 family, with the PCA9702 being the 8-bit version, capable of monitoring up to 8 switch inputs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of GPIs | 8 | - |
| Input Voltage Tolerance | Up to 18 V | V |
| Supply Voltage (VDD) | 2.5 V to 5.5 V | V |
| Maximum Input Clock Frequency | 5 MHz | - |
| Operating Temperature Range | -40°C to +125°C | °C |
| Package Type | TSSOP16 | - |
| ESD Protection | Exceeds 8 kV HBM, 350 V MM, and 1000 V CDM | - |
| Interrupt Output | Open-drain | - |
Key Features
- Low power consumption with a maximum current of 2.5 μA.
- 18 V tolerant inputs with ESD protection exceeding 8 kV HBM, 350 V MM, and 1000 V CDM.
- SPI serial interface with speeds up to 5 MHz.
- Open-drain interrupt output that is asserted when an input port status changes.
- Ability to connect to a 12 V battery and support double battery, reverse battery, and other high-voltage conditions with a series resistor.
- Operating temperature range from -40°C to +125°C.
Applications
The PCA9702PW,118 is suitable for various applications where monitoring switch inputs and generating interrupts are necessary. These include:
- Automotive systems: For monitoring switch inputs in vehicle control systems.
- Industrial control systems: To monitor and control various switches and inputs in industrial environments.
- Consumer electronics: For use in devices that require low-power, high-reliability switch input monitoring.
Q & A
- What is the PCA9702PW,118 used for? The PCA9702PW,118 is used to monitor the status of switch inputs and generate an interrupt when any of the switch inputs change state.
- How many switch inputs can the PCA9702PW,118 monitor? The PCA9702PW,118 can monitor up to 8 switch inputs.
- What is the input voltage tolerance of the PCA9702PW,118? The PCA9702PW,118 has an input voltage tolerance of up to 18 V.
- What is the maximum input clock frequency of the PCA9702PW,118? The maximum input clock frequency is 5 MHz.
- What type of package does the PCA9702PW,118 come in? The PCA9702PW,118 comes in a TSSOP16 package.
- What is the operating temperature range of the PCA9702PW,118? The operating temperature range is from -40°C to +125°C.
- Does the PCA9702PW,118 have ESD protection? Yes, it exceeds 8 kV HBM, 350 V MM, and 1000 V CDM.
- How does the interrupt output work on the PCA9702PW,118? The interrupt output is an open-drain type that is asserted when an input port status changes.
- Can the PCA9702PW,118 be used with high-voltage batteries? Yes, with a series resistor, it can support double battery, reverse battery, and other high-voltage conditions.
- What is the power consumption of the PCA9702PW,118? The maximum current consumption is 2.5 μA.
