Overview
The PCA9534D,118 is a 16-pin CMOS device produced by NXP USA Inc., designed to provide 8 bits of general-purpose parallel Input/Output (GPIO) expansion for I2C-bus and SMBus applications. This device is part of NXP's family of I2C-bus I/O expanders, offering enhanced features such as higher drive capability, 5 V I/O tolerance, lower supply current, and individual I/O configuration. It is particularly useful for expanding the I/O capabilities of microcontrollers in various systems.
Key Specifications
| Specification | Value |
|---|---|
| Number of I/O Pins | 8 |
| Default I/O Configuration | Inputs |
| Clock Frequency | 0 Hz to 400 kHz |
| Supply Voltage | 1.65 V to 5.5 V |
| Power-On Reset (Vpor) | Typical: 1.7 V, Maximum: 2.2 V |
| ESD Protection | Exceeds 2000 V HBM, 200 V MM, 1000 V CDM |
| Package Options | SO16, TSSOP16, HVQFN16 |
| Operating Temperature | -40°C to +85°C |
| Interrupt Capability | Yes, with interrupt output |
Key Features
- 8-bit Configuration register for input or output selection
- Individual I/O configuration
- Higher drive capability and 5 V I/O tolerance
- Lower supply current
- 400 kHz clock frequency
- ESD protection exceeding 2000 V HBM, 200 V MM, and 1000 V CDM
- Latch-up testing to JEDEC Standard JESD78
- Interrupt output capability
- Power-On Reset (POR) with typical Vpor of 1.7 V and maximum of 2.2 V
Applications
The PCA9534D,118 is suitable for a variety of applications where additional I/O is required, such as:
- ACPI power switches
- Sensors and monitoring systems
- Push buttons and user interfaces
- LEDs and display systems
- Fans and motor control
- Alarm systems and security devices
Q & A
- What is the PCA9534D,118 used for?
The PCA9534D,118 is used to provide 8 bits of general-purpose parallel Input/Output (GPIO) expansion for I2C-bus and SMBus applications. - What are the default configurations of the I/O pins?
The I/O pins default to inputs at reset. - What is the clock frequency range of the PCA9534D,118?
The clock frequency range is from 0 Hz to 400 kHz. - What are the package options available for the PCA9534D,118?
The device is offered in SO16, TSSOP16, and HVQFN16 packages. - What is the operating temperature range of the PCA9534D,118?
The operating temperature range is from -40°C to +85°C. - Does the PCA9534D,118 have interrupt capability?
Yes, it has an interrupt output capability. - What is the ESD protection level of the PCA9534D,118?
The ESD protection exceeds 2000 V HBM, 200 V MM, and 1000 V CDM. - How does the Power-On Reset (POR) work?
The POR holds the device in a reset condition until VDD reaches the specified Vpor, and it initializes the registers and state machine to their default states. - Can the PCA9534D,118 be used in high-temperature environments?
Yes, it can operate in temperatures up to +85°C. - Is the PCA9534D,118 suitable for use in automotive applications?
While it is not specifically marked for automotive use, its robust specifications make it a candidate for various industrial and embedded systems applications.
