Overview
The PCA9537DP,118 is a 10-pin CMOS device developed by NXP USA Inc. It provides 4 bits of General Purpose parallel Input/Output (GPIO) expansion with interrupt and reset capabilities, designed for I²C-bus/SMBus applications. This device is part of NXP's family of I²C-bus I/O expanders, offering a simple solution for adding additional I/O functionality to various systems.
Key Specifications
| Specification | Value |
|---|---|
| Number of I/O Bits | 4 |
| Interface | I²C-bus/SMBus |
| Package Type | TSSOP10 |
| Power-On Reset | Yes |
| Interrupt Output | Open-drain |
| Registers | Configuration, Input Port, Output Port, Polarity Inversion |
| I²C-bus Address | Fixed |
Key Features
- 4-bit General Purpose parallel Input/Output (GPIO) expansion
- Interrupt and reset capabilities
- Open-drain interrupt output (INT)
- Power-on reset and external reset pin (RESET)
- Configuration, Input Port, Output Port, and Polarity Inversion registers
- Fixed I²C-bus address
Applications
The PCA9537DP,118 is suitable for various applications requiring additional I/O functionality, such as:
- ACPI power switches
- Sensors
- Push-buttons
- LEDs
- Fans
Q & A
- What is the PCA9537DP,118 used for? The PCA9537DP,118 is used for providing 4 bits of General Purpose parallel Input/Output (GPIO) expansion with interrupt and reset capabilities.
- What interface does the PCA9537DP,118 use? The PCA9537DP,118 uses the I²C-bus/SMBus interface.
- How many I/O bits does the PCA9537DP,118 provide? The PCA9537DP,118 provides 4 bits of I/O.
- What type of package is the PCA9537DP,118 available in? The PCA9537DP,118 is available in a TSSOP10 package.
- Does the PCA9537DP,118 have power-on reset and external reset capabilities? Yes, the PCA9537DP,118 has both power-on reset and an external reset pin (RESET).
- What is the nature of the interrupt output on the PCA9537DP,118? The interrupt output is open-drain.
- Can the I²C-bus address of the PCA9537DP,118 be changed? No, the I²C-bus address is fixed.
- What types of registers does the PCA9537DP,118 have? The PCA9537DP,118 has Configuration, Input Port, Output Port, and Polarity Inversion registers.
- What are some common applications of the PCA9537DP,118? Common applications include ACPI power switches, sensors, push-buttons, LEDs, and fans.
- How does the PCA9537DP,118 handle changes in input state? The PCA9537DP,118 activates an open-drain interrupt output when any input state differs from its corresponding Input Port register state.
