Overview
The PCA24S08AD,112 is an integrated circuit (IC) manufactured by NXP USA Inc., designed as an 8-channel I2C I/O port expander. This device provides flexible and efficient GPIO expansion for microcontrollers, enabling the increase of digital I/O capabilities in embedded systems. It features high-speed I2C communication and specific addressing capabilities, allowing multiple devices to be connected on a single bus while maintaining excellent performance and reliability. The PCA24S08AD,112 is particularly suited for applications requiring low power consumption and minimal footprint, making it ideal for portable and battery-powered devices as well as various industrial and consumer electronics applications.
Key Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | NXP USA Inc. |
| Part Number | PCA24S08AD,112 |
| Package | 8-SOIC (0.154", 3.90mm Width) |
| Memory Format | EEPROM |
| Memory Size | 8Kb (1K x 8) |
| Memory Interface | I2C |
| Clock Frequency | Up to 400kHz |
| Operating Voltage Range | 2.3V to 5.5V |
| Temperature Range | -40°C to +85°C |
| Logic Levels | Compatible with 3.3V and 5V logic levels |
| Integrated Pull-up Resistors | Yes |
| RoHS Status | Lead Free / RoHS Compliant |
Key Features
- 8 GPIO ports with flexible configuration for input, output, or interrupt functionality
- I2C interface with a standard clock speed of up to 1 MHz
- Two I2C addresses selectable through A0 and A1 pins, enabling connection of up to 4 devices on the same bus
- Integrated pull-up resistors to simplify external connections
- Wide operating voltage range from 2.3V to 5.5V to accommodate various microcontroller systems
- Low standby current consumption, ideal for battery-operated devices
- Temperature range from -40°C to +85°C, ensuring reliability in harsh environments
Applications
- Consumer Electronics: Remote controls, voice assistants, and smart home devices
- Industrial Automation: Automation controllers and sensor interfacing
- Telecommunications: Routers, switches, and communication equipment
- Automotive: Dashboard controllers, interior lighting, and infotainment systems
- Medical Devices: Portable diagnostic equipment and health monitoring systems
- Robotics: I/O expansion for robotic controllers and sensor arrays
- IoT Devices: Connected smart solutions for home and industry
Q & A
- Q: What is the maximum I2C speed supported by the PCA24S08AD,112?
A: The PCA24S08AD,112 supports I2C communication speeds of up to 1 MHz.
- Q: Can I connect multiple PCA24S08AD,112 devices to the same I2C bus?
A: Yes, you can connect up to 4 PCA24S08AD,112 devices on the same bus using the A0 and A1 address pins to differentiate them.
- Q: What logic levels does the PCA24S08AD,112 support?
A: The device supports both 3.3V and 5V logic levels, making it compatible with a wide range of microcontrollers.
- Q: What is the typical power consumption of this device?
A: The PCA24S08AD,112 features low power consumption in standby mode, allowing it to be used in battery-powered applications.
- Q: What kind of pull-up resistors are integrated in the PCA24S08AD,112?
A: The PCA24S08AD,112 contains integrated pull-up resistors that simplify connections for the I2C bus and GPIO lines, eliminating the need for external components.
- Q: What is the operating temperature range of the PCA24S08AD,112?
A: The device operates within a temperature range of -40°C to +85°C.
- Q: Is the PCA24S08AD,112 RoHS compliant?
A: Yes, the PCA24S08AD,112 is Lead Free and RoHS compliant.
- Q: What is the package type of the PCA24S08AD,112?
A: The PCA24S08AD,112 is available in an 8-SOIC package.
- Q: How many GPIO ports does the PCA24S08AD,112 have?
A: The PCA24S08AD,112 has 8 GPIO ports.
- Q: What is the memory size of the PCA24S08AD,112?
A: The PCA24S08AD,112 has a memory size of 8Kb (1K x 8).
