Overview
The PCA9535APW,118 is a low-voltage 16-bit General Purpose Input/Output (GPIO) expander designed for I²C-bus/SMBus applications. Manufactured by NXP USA Inc., this device is part of the PCA9535A series, which provides a simple solution for expanding the number of I/Os in a system while minimizing interconnections. It is particularly useful in applications where additional I/Os are required, such as in ACPI power switches, sensors, push buttons, LEDs, and fan control.
Key Specifications
| Parameter | Value |
|---|---|
| VDD Range | 1.65 V to 5.5 V |
| Number of GPIOs | 16-bit |
| Interface | I²C-bus/SMBus |
| Interrupt and Reset | Yes |
| Voltage Power on Reset (Vpor) | Typical: 1.7 V, Max: 2.2 V |
| Package Type | TSSOP20 |
Key Features
- Low-voltage operation with a wide VDD range of 1.65 V to 5.5 V, allowing compatibility with next-generation microprocessors and microcontrollers.
- 16-bit GPIO expander with interrupt and reset capabilities.
- Four pairs of 8-bit Configuration, Input, Output, and Polarity Inversion registers.
- Pin-to-pin replacement for the PCA9535 and other industry-standard devices.
- No need for external pull-up resistors on the I²C-bus/SMBus lines.
Applications
- ACPI power switches
- Sensors
- Push buttons
- LEDs
- Fan control
- Other applications requiring expanded I/O capabilities.
Q & A
- What is the PCA9535APW,118 used for? The PCA9535APW,118 is used as a 16-bit General Purpose Input/Output (GPIO) expander for I²C-bus/SMBus applications.
- What is the voltage range of the PCA9535APW,118? The device operates within a VDD range of 1.65 V to 5.5 V.
- Does the PCA9535APW,118 have interrupt and reset capabilities? Yes, it includes interrupt and reset features.
- What type of interface does the PCA9535APW,118 use? It uses the I²C-bus/SMBus interface.
- What is the typical Voltage Power on Reset (Vpor) for the PCA9535APW,118? The typical Vpor is 1.7 V, with a maximum of 2.2 V.
- What package type is the PCA9535APW,118 available in? It is available in a TSSOP20 package.
- Can the PCA9535APW,118 be used as a replacement for other GPIO expanders? Yes, it is a pin-to-pin replacement for the PCA9535 and other industry-standard devices.
- Does the PCA9535APW,118 require external pull-up resistors? No, it does not require external pull-up resistors on the I²C-bus/SMBus lines.
- What are some common applications of the PCA9535APW,118? Common applications include ACPI power switches, sensors, push buttons, LEDs, and fan control.
- How many GPIOs does the PCA9535APW,118 provide? The PCA9535APW,118 provides 16-bit GPIO expansion.
