Overview
The AT89C51RB2-SLSUM is a versatile 8-bit microcontroller from Microchip Technology, part of the 8051 family. This device is designed to offer a robust set of features and functionalities, making it suitable for a wide range of applications. It operates within a voltage range of 2.7V to 5.5V and is housed in a 44-pin PLCC package, ensuring compatibility with various development boards and systems. The microcontroller is RoHS compliant, indicating its environmental friendliness and adherence to regulatory standards.
Key Specifications
| Specification | Value |
|---|---|
| Microcontroller Type | 8-bit 8051 CISC |
| Program Memory | 16KB Flash |
| Operating Voltage | 2.7V to 5.5V |
| Package Type | 44-Pin PLCC |
| Temperature Range | -40°C to +85°C |
| XRAM | 1024 bytes |
| Interfaces | SPI, EUART, Keyboard Interface |
| Watchdog Timer | Hardware Watchdog Timer |
| Speed Improvement | X2 Mode |
| RoHS Compliance | Yes |
Key Features
- Programmable Counter Array (PCA): Allows for flexible timer and counter operations.
- Hardware Watchdog Timer: Ensures system reliability by monitoring and resetting the system in case of a malfunction.
- SPI and EUART Interfaces: Facilitate serial communication and multiprocessor communication.
- Keyboard Interface: Supports direct connection to keyboards for user input.
- X2 Mode: Enhances the microcontroller's speed, allowing for faster execution of instructions.
- External Brown-out Protection: Recommended to prevent flash/EEPROM corruption during power-on or power-off.
Applications
The AT89C51RB2-SLSUM microcontroller is versatile and can be used in a variety of applications, including:
- Embedded Systems: Suitable for developing complex embedded systems due to its robust feature set.
- Industrial Automation: Can be used in control systems, monitoring devices, and automation equipment.
- Consumer Electronics: Applicable in devices such as remote controls, appliances, and other consumer electronic products.
- Automotive Systems: Can be integrated into automotive control units, sensors, and other automotive electronics.
Q & A
- What is the operating voltage range of the AT89C51RB2-SLSUM?
The operating voltage range is 2.7V to 5.5V. - What type of package does the AT89C51RB2-SLSUM come in?
The microcontroller is housed in a 44-pin PLCC package. - Does the AT89C51RB2-SLSUM support SPI and EUART interfaces?
Yes, it supports both SPI and EUART interfaces. - What is the purpose of the X2 mode in the AT89C51RB2-SLSUM?
The X2 mode enhances the microcontroller's speed, allowing for faster execution of instructions. - Is the AT89C51RB2-SLSUM RoHS compliant?
Yes, the microcontroller is RoHS compliant. - What is the recommended practice to prevent flash/EEPROM corruption during power-on or power-off?
Implementing an external brown-out protection is recommended. - How much XRAM does the AT89C51RB2-SLSUM have?
The microcontroller has 1024 bytes of XRAM. - Can the AT89C51RB2-SLSUM be used in industrial automation?
Yes, it is suitable for use in industrial automation due to its robust feature set. - What is the temperature range for the AT89C51RB2-SLSUM?
The temperature range is -40°C to +85°C. - Does the AT89C51RB2-SLSUM have a hardware watchdog timer?
Yes, it includes a hardware watchdog timer.
