Manufacturer Part Number
AT89C2051-12SU
Manufacturer
Microchip Technology
Introduction
The AT89C2051-12SU is an 8-bit microcontroller with a 8051 core offering a blend of performance and low power consumption.
Product Features and Performance
8-bit 8051 core microcontroller
Operating speed of 12MHz
Built-in UART/USART for serial communication
Integrated peripherals including LED drive capabilities
15 general purpose I/O pins
FLASH program memory of 2KB
128 x 8 bits of RAM
On-chip internal oscillator
Wide operating voltage range from 2.7V to 6V
Surface mount 20-SOIC package
Operational temperature range from -40°C to 85°C
Product Advantages
Low power consumption for battery-powered applications
High integration to reduce external components and system costs
Robust serial communication capabilities
Broad operating voltage suits various environments
Easy to program with Flash memory
Key Technical Parameters
Core Processor: 8051
Core Size: 8-Bit
Speed: 12MHz
Program Memory Size: 2KB (2K x 8)
Program Memory Type: FLASH
RAM Size: 128 x 8
Number of I/O: 15
Voltage Supply (Vcc/Vdd): 2.7V ~ 6V
Operating Temperature: -40°C ~ 85°C
Mounting Type: Surface Mount
Package: 20-SOIC
Quality and Safety Features
Robust construction for industrial temperature ranges
Long-standing reputation of manufacturer for reliability
Compatibility
Compatible with a wide range of supply voltages and peripheral components
Standard SOIC package for broad PCB compatibility
Application Areas
Industrial control systems
Consumer electronics
Automotive systems
Telecommunication devices
Embedded systems for IoT
Product Lifecycle
Active status indicating ongoing manufacturing and availability
No near discontinuation reported, ensuring long-term supply
Upgrades or replacements are available within the same family
Several Key Reasons to Choose This Product
Proven reliability and performance from the widely-adopted 8051 core
Flexible programming with in-system programmable Flash memory
Competitive balance of computational power and energy efficiency
Strong community support and a wealth of development tools
Microchip Technology's reputation for support and longevity in product life cycles
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