Manufacturer Part Number
AT87C51RB2-3CSUM
Manufacturer
Microchip Technology
Introduction
8-bit microcontroller based on the 80C51 core with UART/USART for serial communication
Product Features and Performance
80C51 Core Processor
8-Bit Core Size
Dual Clock Speed: 40/20MHz
Serial Communication via UART/USART
32 Programmable I/O Lines
16KB OTP Program Memory
512 Bytes of Internal RAM
Integrated Power-on Reset (POR)
Pulse Width Modulation (PWM) Capabilities
Watchdog Timer (WDT) for System Stability
Internal Oscillator
Product Advantages
Enhanced performance with 80C51 core at up to 40 MHz
High integration of features facilitates system design
Increased reliability with on-chip peripherals
Key Technical Parameters
Core Size: 8-Bit
Speed: 40/20MHz
Program Memory Size: 16KB OTP
RAM Size: 512 x 8
Supply Voltage: 4.5V ~ 5.5V
Number of I/O: 32
Operating Temperature Range: -40°C ~ 85°C
Quality and Safety Features
Integrated Power-on Reset (POR) for safe power-up sequences
Watchdog Timer (WDT) to ensure proper operation
Operating Temperature range ensures performance in extreme conditions
Compatibility
40-PDIL Standard Through Hole Mounting
Compatible with 80C51 microcontroller family peripherals
Application Areas
Industrial automation
Motor control
Consumer electronics
Embedded systems
Product Lifecycle
Obsolete product status
Recommend consulting manufacturer for replacement or upgrade options
Several Key Reasons to Choose This Product
Robust 8-bit performance with the 80C51 core suitable for a variety of applications
Ample program and RAM memory for complex tasks
Built-in peripherals reduce additional component needs and system complexity
Suitable for harsh environments with a wide operating temperature
Easy to integrate into existing systems with through-hole mounting design
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