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AT80C51RD2 PDF预览

AT80C51RD2

更新时间: 2024-11-17 14:51:19
品牌 Logo 应用领域
美国微芯 - MICROCHIP /
页数 文件大小 规格书
81页 1336K
描述
High-performance version of the 80C51 8-bit microcontrollers that retains all features of the 80C5

AT80C51RD2 数据手册

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Features  
80C52 Compatible  
– Four 8-bit I/O Ports  
– Three 16-bit Timer/Counters  
– 256 Bytes Scratch Pad RAM  
– 8 Interrupt Sources with 4 Priority Levels  
– Dual Data Pointer  
Variable Length MOVX for Slow RAM/Peripherals  
High-speed Architecture  
80C51 High  
Performance  
ROM 8-bit  
– 10 to 40 MHz in Standard Mode  
16K/32K Bytes On-Chip ROM Program  
AT80C51RD2 ROMless Versions  
On-Chip 1024 bytes Expanded RAM (XRAM)  
– Software Selectable Size (0, 256, 512, 768, 1024 bytes)  
– 256 Bytes Selected at Reset  
Microcontroller  
Keyboard Interrupt Interface on Port P1  
8-bit Clock Prescaler  
64K Program and Data Memory Spaces  
Improved X2 Mode with Independant Selection for CPU and Each Peripheral  
Programmable Counter Array 5 Channels with:  
– High-speed Output  
AT80C51RD2  
– Compare/Capture  
– Pulse Width Modulator  
– Watchdog Timer Capabilities  
Asynchronous Port Reset  
Full Duplex Enhanced UART  
Dedicated Baud Rate Generator for UART  
Low EMI (Inhibit ALE)  
Hardware Watchdog Timer (One-time Enabled with Reset-out)  
Power Control Modes  
– Idle Mode  
– Power-down Mode  
– Power-off Flag  
Power Supply: 2.7V to 5.5V  
Temperature Ranges: Commercial (0 to +70°C) and Industrial (-40°C to +85°C)  
Packages: PDIL40, PLCC44, VQFP44  

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