Overview
The PCA9703PW,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, making it an essential part of various microcontroller-based systems. It features an SPI interface for serial communication and includes an interrupt output that can be masked, allowing for flexible system event detection.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage (VDD) | 4.5 | 5.0 | 5.5 | V | |
| Supply Current (IDD) | VDD = 5.5 V; input = 5 V or 18 V; INT_EN = VDD | - | - | 2.5 | μA |
| LOW-level Input Voltage (VIL) | - | - | 0.55VDD | V | |
| HIGH-level Input Voltage (VIH) | 0.8VDD | - | - | V | |
| Maximum Input Clock Frequency (fmax) | - | - | 5 | MHz | |
| Rise Time (tr) | SDOUT; 10 % to 90 % at 5 V | - | 35 | 60 | ns |
| Fall Time (tf) | SDOUT; 90 % to 10 % at 5 V | - | 25 | 50 | ns |
| Package Type | 24-TSSOP | ||||
| Number of I/O Pins | 16 (Input Only) | ||||
| Interrupt Output | Yes | ||||
| Interface | SPI Serial |
Key Features
- 18 V Tolerance: The PCA9703PW can tolerate input voltages up to 18 V, making it suitable for applications involving high-voltage inputs.
- SPI Interface: The component uses an SPI serial interface for communication, allowing for efficient data transfer.
- Interrupt Output with Masking: The device generates an interrupt when the input state changes, and selected inputs can be masked to prevent unnecessary interrupts.
- Low Power Consumption: Designed to operate with low power consumption, making it ideal for battery-powered and energy-efficient systems.
- ESD Protection: Each input port has a 18 V breakdown ESD protection circuit, enhancing the component's durability.
- Push-Pull Output Type: The output type is push-pull, ensuring reliable signal transmission.
- Surface Mount Package: The 24-TSSOP package is suitable for surface mount applications, facilitating easy integration into PCBs.
Applications
- Microcontroller-Based Systems: Ideal for expanding the I/O capabilities of microcontrollers in various applications.
- Industrial Automation and Control: Used in industrial settings to monitor and control switch inputs efficiently.
- Consumer Electronics: Suitable for use in consumer electronics where I/O expansion and interrupt handling are necessary.
- Automotive Systems: Can be used in automotive systems to monitor switch inputs and handle interrupts, especially in scenarios requiring high-voltage tolerance.
Q & A
- What is the PCA9703PW,118 used for?
The PCA9703PW,118 is used to monitor the status of switch inputs and expand the I/O capabilities of microcontroller-based systems.
- What is the voltage tolerance of the PCA9703PW,118?
The PCA9703PW,118 is 18 V tolerant, making it suitable for high-voltage input applications.
- What type of interface does the PCA9703PW,118 use?
The PCA9703PW,118 uses an SPI serial interface for communication.
- Does the PCA9703PW,118 have an interrupt output?
Yes, the PCA9703PW,118 has an interrupt output that can be masked to prevent unnecessary interrupts.
- What is the package type of the PCA9703PW,118?
The PCA9703PW,118 comes in a 24-TSSOP package.
- How many I/O pins does the PCA9703PW,118 have?
The PCA9703PW,118 has 16 input-only I/O pins.
- What is the maximum input clock frequency of the PCA9703PW,118?
The maximum input clock frequency is 5 MHz.
- Does the PCA9703PW,118 have ESD protection?
Yes, each input port has a 18 V breakdown ESD protection circuit.
- What are some common applications of the PCA9703PW,118?
Common applications include microcontroller-based systems, industrial automation, consumer electronics, and automotive systems.
- Is the PCA9703PW,118 compliant with environmental regulations?
Yes, the PCA9703PW,118 is PbFree, EU RoHS compliant, and halogen-free.
