Overview
The PCA9539PW/Q900,118 is a 24-pin CMOS device manufactured by NXP USA Inc., designed to provide 16 bits of General Purpose parallel Input/Output (GPIO) expansion. This device is part of the NXP Semiconductors family of I2C-bus I/O expanders, enhancing the capability to add additional I/Os for various applications such as ACPI power switches, sensors, push buttons, LEDs, and fans.
Key Specifications
| Specification | Value |
|---|---|
| Package Type | 24-TSSOP (0.173, 4.40mm Width) |
| Number of I/Os | 16 |
| Operating Temperature Range | -40°C to 125°C |
| Supply Voltage Range | 2.3 V to 5.5 V (3.0 V to 5.5 V for PCA9539PW/Q900 and PCA9539RPW/Q900) |
| Interface | I2C, SMBus |
| Clock Frequency | 0 Hz to 400 kHz |
| ESD Protection | Exceeds 2000 V HBM per JESD22-A114 and 1000 V CDM per JESD22-C101 |
| Latch-up Testing | Exceeds 100 mA per JEDEC Standard JESD78 |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Terminal Pitch | 0.65 mm |
Key Features
- 16-bit I2C-bus GPIO with interrupt and reset
- Polarity inversion register for active HIGH or active LOW operation
- Active LOW interrupt output and active LOW reset input
- Low standby current and internal power-on reset
- No glitch on power-up and noise filter on SCL/SDA inputs
- 16 I/O pins which default to 16 inputs
- ESD protection and latch-up testing compliance
- Available in SO24, TSSOP24, and HVQFN24 packages
Applications
The PCA9539PW/Q900,118 is suitable for a variety of applications where additional I/O expansion is required. These include:
- ACPI power switches
- Sensors
- Push buttons
- LEDs
- Fans
- Automotive systems (AEC-Q100 compliant)
Q & A
- What is the PCA9539PW/Q900,118 used for?
The PCA9539PW/Q900,118 is used for providing 16 bits of General Purpose parallel Input/Output (GPIO) expansion with interrupt and reset for I2C-bus/SMBus applications.
- What are the key interfaces supported by this device?
The device supports I2C and SMBus interfaces.
- What is the operating temperature range of the PCA9539PW/Q900,118?
The operating temperature range is -40°C to 125°C.
- What is the supply voltage range for this device?
The supply voltage range is 2.3 V to 5.5 V, with specific models operating between 3.0 V to 5.5 V.
- What is the clock frequency range supported by the PCA9539PW/Q900,118?
The clock frequency range is 0 Hz to 400 kHz.
- Does the PCA9539PW/Q900,118 have ESD protection?
- What type of packages is the PCA9539PW/Q900,118 available in?
- Is the PCA9539PW/Q900,118 suitable for automotive applications?
- How many I/O pins does the PCA9539PW/Q900,118 have?
- What is the purpose of the polarity inversion register in the PCA9539PW/Q900,118?
- Does the PCA9539PW/Q900,118 have an internal power-on reset?
