Overview
The PCA9535PW,112 is a 24-pin CMOS device manufactured by NXP USA Inc., designed to provide 16 bits of General Purpose parallel Input/Output (GPIO) expansion for I²C-bus/SMBus applications. This device is part of the PCA9535 and PCA9535C series, which are developed to enhance GPIO capabilities with features such as higher drive capability, 5 V I/O tolerance, lower supply current, and individual I/O configuration. The PCA9535PW,112 is packaged in a TSSOP24 format, making it suitable for a variety of applications requiring additional I/O ports.
Key Specifications
| Parameter | Value | Description |
|---|---|---|
| Package Type | TSSOP24 | 24-pin Thin Shrink Small Outline Package |
| Number of I/Os | 16 | General Purpose parallel Input/Output pins |
| Operating Voltage | 2.3 V to 5.5 V | Range of power supply voltage |
| I/O Tolerance | 5 V tolerant | I/O pins can tolerate up to 5 V input |
| Clock Frequency | 0 Hz to 400 kHz | Range of clock frequency for I²C-bus/SMBus operations |
| Interrupt Output | Active LOW | Interrupt output is active LOW |
| ESD Protection | 2000 V HBM, 200 V MM, 1000 V CDM | Electrostatic Discharge protection levels |
| Environmental Compliance | PbFree, EU RoHS, Halogen Free, REACH SVHC | Compliance with various environmental standards |
Key Features
- Higher Drive Capability: Enhanced drive capability for better performance.
- 5 V I/O Tolerance: I/O pins can tolerate up to 5 V input.
- Low Supply Current: Lower power consumption, especially when I/Os are held LOW.
- Individual I/O Configuration: Each I/O can be configured as either an input or an output.
- Polarity Inversion Register: Allows for polarity inversion of the read register.
- Active LOW Interrupt Output: Interrupt output is active LOW.
- No Glitch on Power-Up: No glitch on power-up due to internal power-on reset.
- Noise Filter on SCL/SDA Inputs: Built-in noise filter for improved reliability.
Applications
The PCA9535PW,112 is suitable for a variety of applications, including:
- ACPI Power Switches: For controlling power states in systems.
- Sensors and Push Buttons: For reading input from various sensors and buttons.
- LEDs and Fans: For controlling output devices such as LEDs and fans.
- Embedded Systems: For expanding I/O capabilities in embedded systems.
Q & A
- What is the package type of the PCA9535PW,112?
The PCA9535PW,112 is packaged in a TSSOP24 format.
- How many I/O pins does the PCA9535PW,112 have?
The device has 16 General Purpose parallel Input/Output pins.
- What is the operating voltage range of the PCA9535PW,112?
The operating voltage range is from 2.3 V to 5.5 V.
- Is the PCA9535PW,112 5 V tolerant?
Yes, the I/O pins are 5 V tolerant.
- What is the clock frequency range for I²C-bus/SMBus operations?
The clock frequency range is from 0 Hz to 400 kHz.
- What type of interrupt output does the PCA9535PW,112 have?
The interrupt output is active LOW.
- Does the PCA9535PW,112 have ESD protection?
Yes, it has ESD protection exceeding 2000 V HBM, 200 V MM, and 1000 V CDM.
- Is the PCA9535PW,112 environmentally compliant?
Yes, it is PbFree, EU RoHS compliant, Halogen Free, and compliant with REACH SVHC regulations.
- Can the PCA9535PW,112 be used in embedded systems?
Yes, it is suitable for expanding I/O capabilities in embedded systems.
- How are the I/O pins configured on the PCA9535PW,112?
Each I/O can be configured as either an input or an output by writing to the I/O configuration bits.
