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89C51RC2-UL PDF预览

89C51RC2-UL

更新时间: 2022-12-19 13:29:57
品牌 Logo 应用领域
爱特美尔 - ATMEL 闪存微控制器
页数 文件大小 规格书
127页 1478K
描述
8-bit Microcontroller with 16K/ 32K Bytes Flash

89C51RC2-UL 数据手册

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Features  
80C52 Compatible  
– 8051 Pin and Instruction Compatible  
– Four 8-bit I/O Ports  
– Three 16-bit Timer/Counters  
– 256 Bytes Scratch Pad RAM  
– 9 Interrupt Sources with 4 Priority Levels  
– Dual Data Pointer  
Variable Length MOVX for Slow RAM/Peripherals  
ISP (In-system Programming) Using Standard VCC Power Supply  
Boot ROM Contains Low Level Flash Programming Routines and a Default Serial  
Loader  
8-bit  
High-speed Architecture  
Microcontroller  
with 16K/  
32K Bytes Flash  
– In Standard Mode:  
40 MHz (Vcc 2.7V to 5.5V, both Internal and external code execution)  
60 MHz (Vcc 4.5V to 5.5V and Internal Code execution only)  
– In X2 mode (6 Clocks/machine cycle)  
20 MHz (Vcc 2.7V to 5.5V, both Internal and external code execution)  
30 MHz (Vcc 4.5V to 5.5V and Internal Code execution only)  
– 16K/32K Bytes On-chip Flash Program/Data Memory  
– Byte and Page (128 Bytes) Erase and Write  
– 100K Write Cycles  
AT89C51RB2  
AT89C51RC2  
On-chip 1024 Bytes Expanded RAM (XRAM)  
– Software Selectable Size (0, 256, 512, 768, 1024 Bytes)  
– 256 Bytes Selected at Reset for TS87C51RB2/RC2 Compatibility  
Keyboard Interrupt Interface on Port P1  
SPI Interface (Master/Slave Mode)  
8-bit Clock Prescaler  
Improved X2 Mode with Independent Selection for CPU and Each Peripheral  
Programmable Counter Array 5 Channels  
– High-speed Output  
– 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:  
– 2.7 to 3.6 (3V Version)  
– 2.7 to 5.5V (5V Version)  
Temperature Ranges: Commercial (0 to +70°C) and Industrial (-40°C to +85°C)  
Packages: PDIL40, PLCC44, VQFP44  
Description  
The AT89C51RB2/RC2 is a high-performance Flash version of the 80C51 8-bit micro-  
controllers. It contains a 16K or 32K Bytes Flash memory block for program and data.  
The Flash memory can be programmed either in parallel mode or in serial mode with  
the ISP capability or with software. The programming voltage is internally generated  
from the standard VCC pin.  
Rev. 4180E–8051–10/06  

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