Overview
The PCA9701PW,112 is a 16-bit General Purpose Input (GPI) shift register produced by NXP USA Inc. This device is designed to monitor the status of switch inputs and generate an interrupt when one or more of the switch inputs change state. It operates via a 4-wire SPI interface and is particularly useful in applications requiring the monitoring of multiple switch inputs.
The PCA9701PW,112 features 18 V tolerant inputs, making it suitable for use in environments with high voltage conditions such as automotive systems. The device is packaged in a 24-TSSOP (0.173", 4.40mm Width) case and is RoHS compliant.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | NXP USA Inc. |
| Part Number | PCA9701PW,112 |
| Description | IC SPI GPI 16-BIT 24-TSSOP |
| Package / Case | 24-TSSOP (0.173", 4.40mm Width) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 125°C |
| Voltage - Supply | 2.5 V ~ 5.5 V |
| Number of I/O | 16 (Input Only) |
| Interface | SPI Serial |
| Clock Frequency | 5 MHz |
| Interrupt Output | Yes |
| Output Type | Push-Pull |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
Key Features
- 16-bit General Purpose Input (GPI) shift register for monitoring switch inputs.
- 18 V tolerant inputs with ESD protection, allowing connection to 12 V batteries and support for double battery, reverse battery, 27 V jump start, or 40 V load dump conditions.
- 4-wire SPI interface for communication with the controller.
- Open-drain interrupt output that is asserted when an input port status changes.
- Ability to connect multiple devices in series for monitoring a large number of switches.
- Low power consumption.
- Rohs compliant and lead-free.
Applications
- Automotive audio systems.
- DC-offset adjustment and DAC smoothing filters.
- Schmitt-trigger oscillators and state-variable 2nd-order active filters.
- Monitoring switch status in various industrial and automotive environments.
- Systems requiring high voltage tolerance and low power consumption.
Q & A
- What is the PCA9701PW,112 used for?
The PCA9701PW,112 is used to monitor the status of switch inputs and generate an interrupt when one or more of the switch inputs change state.
- What is the package type of the PCA9701PW,112?
The PCA9701PW,112 is packaged in a 24-TSSOP (0.173", 4.40mm Width) case.
- What is the operating temperature range of the PCA9701PW,112?
The operating temperature range is -40°C ~ 125°C.
- What is the voltage supply range for the PCA9701PW,112?
The voltage supply range is 2.5 V ~ 5.5 V.
- Does the PCA9701PW,112 have an interrupt output?
Yes, the PCA9701PW,112 has an open-drain interrupt output.
- What interface does the PCA9701PW,112 use for communication?
The PCA9701PW,112 uses a 4-wire SPI interface for communication.
- Can multiple PCA9701PW,112 devices be connected in series?
Yes, multiple devices can be connected in series to monitor a large number of switches.
- What is the clock frequency of the PCA9701PW,112?
The clock frequency is 5 MHz.
- Is the PCA9701PW,112 RoHS compliant?
Yes, the PCA9701PW,112 is RoHS compliant and lead-free.
- What are some common applications of the PCA9701PW,112?
Common applications include automotive audio systems, DC-offset adjustment, and monitoring switch status in industrial and automotive environments.
- How does the PCA9701PW,112 handle high voltage conditions?
The PCA9701PW,112 has 18 V tolerant inputs with ESD protection, allowing it to handle high voltage conditions such as double battery, reverse battery, 27 V jump start, or 40 V load dump.
