Overview
The PCA9534BS3,118 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/SMBus applications. This device is part of NXP's family of I²C-bus I/O expanders and offers several improvements including higher drive capability, 5 V I/O tolerance, lower supply current, and individual I/O configuration. It is particularly useful in scenarios where additional I/O is required for various system components such as ACPI power switches, sensors, push buttons, LEDs, and fans.
Key Specifications
| Specification | Value |
|---|---|
| Package Type | HVQFN16 (3x3 mm) |
| Number of I/O Pins | 8 |
| Operating Power Supply Voltage | 2.3 V to 5.5 V |
| I/O Tolerance | 5 V tolerant |
| Clock Frequency | 0 Hz to 400 kHz |
| Interrupt Output | Active LOW |
| Standby Current | Low |
| ESD Protection | Exceeds 2000 V HBM, 200 V MM, 1000 V CDM |
| Operating Temperature | -40°C to +85°C |
| Addressing | Three hardware pins (A0, A1, A2) for address variation, allowing up to eight devices on the same I²C-bus/SMBus |
Key Features
- 8-bit I²C-bus GPIO expansion
- Individual I/O configuration
- Polarity Inversion register for active HIGH or LOW input state indication
- Noise filter on SCL/SDA inputs
- No glitch on power-up
- Internal power-on reset
- Low standby current
- ESD protection exceeding industry standards
- Latch-up testing to JEDEC Standard JESD78
Applications
The PCA9534BS3,118 is versatile and can be used in a variety of applications, including:
- ACPI power switches
- Sensors and monitoring systems
- Push buttons and user interfaces
- LED indicators and lighting systems
- Fans and motor control systems
- Alarm systems and security devices
Q & A
- What is the PCA9534BS3,118 used for? The PCA9534BS3,118 is used for providing 8 bits of General Purpose parallel Input/Output (GPIO) expansion for I²C-bus/SMBus applications.
- What is the operating voltage range of the PCA9534BS3,118? The operating voltage range is from 2.3 V to 5.5 V.
- What is the clock frequency of the PCA9534BS3,118? The clock frequency ranges from 0 Hz to 400 kHz.
- Does the PCA9534BS3,118 have ESD protection? Yes, it exceeds 2000 V HBM, 200 V MM, and 1000 V CDM.
- How many devices can share the same I²C-bus/SMBus? Up to eight devices can share the same I²C-bus/SMBus using the three hardware address pins (A0, A1, A2).
- What is the package type of the PCA9534BS3,118? The package type is HVQFN16 (3x3 mm).
- What is the interrupt output type of the PCA9534BS3,118? The interrupt output is Active LOW.
- Does the PCA9534BS3,118 have noise filtering on the SCL/SDA inputs? Yes, it has noise filtering on the SCL/SDA inputs.
- Is the PCA9534BS3,118 RoHS compliant? Yes, it is RoHS compliant and also halogen-free.
- What is the operating temperature range of the PCA9534BS3,118? The operating temperature range is from -40°C to +85°C.
