Overview
The PCA9534PW,112 is a 16-pin CMOS device from NXP USA Inc., designed to provide 8 bits of General Purpose parallel Input/Output (GPIO) expansion for I2C-bus/SMBus applications. This device is part of NXP's family of I2C-bus I/O expanders and is engineered to enhance the functionality of microcontroller-based systems by adding additional I/O ports. It is particularly useful in scenarios where more I/O pins are required without increasing the complexity of the system.
Key Specifications
| Parameter | Value |
|---|---|
| Package / Case | 16-TSSOP (0.173", 4.40mm Width) |
| Interface | I2C, SMBus |
| Output Type | Push-Pull |
| Mounting Type | Surface Mount |
| Clock Frequency | 0 Hz to 400 kHz |
| Operating Temperature Range | -40°C to +85°C |
| ESD Protection | Exceeds 2000 V HBM per JESD22-A114, 200 V MM per JESD22-A115, and 1000 V CDM per JESD22-C101 |
| Latch-up Testing | Exceeds 100 mA per JEDEC Standard JESD78 |
| Current - Output Source/Sink | 10mA, 25mA |
Key Features
- 8 general-purpose I/O pins that can be configured as inputs or outputs
- Supports I2C (400 kHz) and SMBus interfaces
- Interrupt output for notification of critical events
- Power-On Reset (POR) feature ensures reliable start-up
- Output type: push-pull
- Individual I/O configuration and polarity inversion register for active HIGH or LOW operation
Applications
- Industrial control systems
- Consumer electronics
- Automotive systems
- Medical devices
- Aerospace applications
Q & A
- What is the PCA9534PW,112 used for? The PCA9534PW,112 is used to provide 8 bits of General Purpose parallel Input/Output (GPIO) expansion for I2C-bus/SMBus applications.
- What is the package type of the PCA9534PW,112? The package type is 16-TSSOP (0.173", 4.40mm Width).
- What interfaces does the PCA9534PW,112 support? It supports I2C and SMBus interfaces.
- What is the clock frequency range of the PCA9534PW,112? The clock frequency range is from 0 Hz to 400 kHz.
- What is the operating temperature range of the PCA9534PW,112? The operating temperature range is -40°C to +85°C.
- Does the PCA9534PW,112 have an interrupt output feature? Yes, it has an interrupt output feature for notification of critical events.
- What is the Power-On Reset (POR) feature of the PCA9534PW,112? The POR feature ensures reliable start-up by holding the device in a reset condition until VDD has reached VPOR.
- Can the I/O pins of the PCA9534PW,112 be configured individually? Yes, the I/O pins can be configured individually as inputs or outputs.
- What are some common applications of the PCA9534PW,112? Common applications include industrial control systems, consumer electronics, automotive systems, medical devices, and aerospace applications.
- Does the PCA9534PW,112 have ESD protection? Yes, it exceeds 2000 V HBM per JESD22-A114, 200 V MM per JESD22-A115, and 1000 V CDM per JESD22-C101.
