Overview
The PCA9502BS,128 is an 8-bit I/O expander produced by NXP USA Inc., designed to expand the I/O capabilities of host systems. This device features a versatile interface that supports both I²C-bus and SPI protocols, making it highly adaptable for various applications. The PCA9502BS comes in a compact 24-HVQFN package, which is ideal for space-constrained and battery-operated devices. It operates within an industrial temperature range of -40°C to +85°C, ensuring reliability in diverse environmental conditions.
Key Specifications
| Parameter | Description |
|---|---|
| Manufacturer | NXP USA Inc. |
| Part Number | PCA9502BS,128 |
| Package | 24-HVQFN (4x4) |
| Supply Voltage | 2.3 V to 3.6 V |
| Operating Temperature | -40°C to +85°C |
| Number of I/O Pins | 8 |
| Interface | I²C, SPI |
| Maximum Clock Frequency | 400 kHz (I²C), 15 Mbit/s (SPI) |
| Mounting Type | Surface Mount |
| Output Type | Push-Pull |
Key Features
- Selectable I²C-bus or SPI interface
- Software reset capability independent of hardware reset signal
- Eight programmable I/O pins with interrupt enable and control registers
- Industrial temperature range: -40°C to +85°C
- Compact 24-HVQFN package suitable for hand-held and battery-operated devices
- Low power consumption and efficient interrupt-driven operation
- Compatible with a wide range of microcontrollers and processors supporting I²C or SPI interfaces
- 16 hardware-selectable slave addresses
Applications
- Factory automation and process control
- Portable and battery-operated devices
- Cellular data devices
- Industrial control systems
- Home automation
- Embedded systems
- Sensor and actuator interfaces
Q & A
- What is the PCA9502BS,128 used for?
The PCA9502BS,128 is used to expand the I/O capabilities of host systems, particularly in applications requiring I²C-bus or SPI interfaces.
- What are the supported interfaces of the PCA9502BS,128?
The device supports both I²C-bus and SPI interfaces.
- What is the operating temperature range of the PCA9502BS,128?
The operating temperature range is -40°C to +85°C.
- How many I/O pins does the PCA9502BS,128 have?
The device has 8 programmable I/O pins.
- What is the maximum clock frequency for the I²C interface?
The maximum clock frequency for the I²C interface is 400 kHz.
- What is the maximum clock frequency for the SPI interface?
The maximum clock frequency for the SPI interface is 15 Mbit/s.
- Does the PCA9502BS,128 support software reset?
Yes, the device supports software reset independent of the hardware reset signal.
- What package type is the PCA9502BS,128 available in?
The device is available in a 24-HVQFN (4x4) package.
- What are some typical applications of the PCA9502BS,128?
Typical applications include factory automation, portable devices, cellular data devices, industrial control systems, home automation, and embedded systems.
- Is the PCA9502BS,128 suitable for battery-operated devices?
Yes, it is suitable for battery-operated devices due to its low power consumption and compact package size.
