Overview
The PCA9703PW,112, produced by NXP USA Inc., is a low-power, 18 V tolerant SPI General Purpose Input (GPI) shift register. This component is designed to monitor the status of switch inputs and generate an interrupt when one or more of the switch inputs change state. It features an interrupt masking capability, allowing selected inputs to be excluded from generating interrupts. The device operates within a supply voltage range of 4.5 V to 5.5 V and is suitable for various applications requiring high reliability and low power consumption.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VDD Supply Voltage | 4.5 | 5.0 | 5.5 | V |
| IDD Supply Current | - | - | 2.5 | μA |
| VIL LOW-level Input Voltage | - | - | 0.55*VDD | V |
| VIH HIGH-level Input Voltage | 0.8*VDD | - | - | V |
| fmax Maximum Input Clock Frequency | - | - | 5 | MHz |
| Operating Temperature Range | -40 | - | 125 | °C |
| Package Type | - | - | TSSOP-24 | - |
Key Features
- 18 V tolerant inputs with ESD protection exceeding 5 kV HBM and 1000 V CDM.
- Interrupt-masking feature allows selected inputs to not generate interrupts.
- Low power consumption with a maximum supply current of 2.5 μA.
- SPI serial interface with speeds up to 5 MHz and support for daisy-chain connections.
- Open-drain interrupt output with an interrupt enable pin (INT_EN).
- AEC-Q100 compliance available for automotive applications.
- Operating temperature range from -40°C to +125°C.
Applications
The PCA9703PW,112 is suitable for a variety of applications, including:
- Automotive systems: Given its AEC-Q100 compliance, it is ideal for use in automotive environments where reliability and robustness are critical.
- Industrial control systems: The component's ability to monitor multiple switch inputs and generate interrupts makes it useful in industrial control and automation.
- Consumer electronics: Its low power consumption and high reliability make it a good choice for consumer electronics that require monitoring of switch inputs.
Q & A
- What is the primary function of the PCA9703PW,112?
The primary function is to monitor the status of switch inputs and generate an interrupt when one or more inputs change state. - What is the voltage tolerance of the inputs on the PCA9703PW,112?
The inputs are 18 V tolerant. - What is the maximum clock frequency for the SPI interface?
The maximum clock frequency is 5 MHz. - Does the PCA9703PW,112 support daisy-chain connections?
Yes, it supports daisy-chain connections for large switch numbers. - What is the operating temperature range of the PCA9703PW,112?
The operating temperature range is from -40°C to +125°C. - What is the purpose of the INT_EN pin?
The INT_EN pin enables or disables the GPI pins and the interrupt output. - What type of ESD protection does the PCA9703PW,112 have?
The device has ESD protection exceeding 5 kV HBM and 1000 V CDM. - Is the PCA9703PW,112 compliant with automotive standards?
Yes, it is AEC-Q100 compliant. - What is the package type of the PCA9703PW,112?
The package type is TSSOP-24. - What is the supply voltage range for the PCA9703PW,112?
The supply voltage range is from 4.5 V to 5.5 V.
