參數(shù)資料
型號： AT80C51RD2-RLTUM
廠商： ATMEL CORP
元件分類： 微控制器/微處理器
英文描述： 80C51 High Performance ROM 8-bit Microcontroller
中文描述： 8-BIT, 40 MHz, MICROCONTROLLER, PQFP44
封裝： GREEN, VQFP-44
文件頁數(shù)： 1/83頁
文件大小： 672K
代理商： AT80C51RD2-RLTUM
Rev. 4113B–8051–03/05
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
– 10 to 40 MHz in Standard Mode
16K/32K Bytes On-Chip ROM Program
T80C51RD2 ROMless Versions
On-Chip 1024 bytes Expanded RAM (XRAM)
– Software Selectable Size (0, 256, 512, 768, 1024 bytes)
– 256 Bytes Selected at Reset for AT87C51RB2/RC2 Compatibility
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
–
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 or 2.7V to 3.6V
Temperature Ranges: Commercial (0 to +70
°
C) and Industrial (-40
°
C to +85
°
C)
Packages: PDIL40, PLCC44, VQFP44
Description
AT8xC51Rx2 microcontrollers are high performance ROM versions of the 80C51 8-bit
microcontrollers. They contain a 0K, 16K or 32K bytes ROM memory block for
program.
The microcontrollers retain all features of the Atmel 80C52 with 256 bytes of internal
RAM, a 7-source 4-level interrupt controller and three timer/counters.
In addition, the microcontrollers have a Programmable Counter Array, an XRAM of
1024 byte, a Hardware Watchdog Timer, a Keyboard Interface, a more versatile serial
channel that facilitates multiprocessor communication (EUART) and a speed improve-
ment mechanism (X2 mode).
The microcontrollers have 2 software-selectable modes of reduced activity and 8 bit
clock prescaler for further reduction in power consumption. In Idle mode, the CPU is
frozen while the peripherals and the interrupt system are still operating. In the Power-
down mode, the RAM is saved and all other functions are inoperative.
80C51 High
Performance
ROM 8-bit
Microcontroller
AT80C51RD2
AT83C51RB2
AT83C51RC2
相關(guān)PDF資料
PDF描述
AT80C51RD2-SLSUL 80C51 High Performance ROM 8-bit Microcontroller
AT80C51RD2-SLSUM 80C51 High Performance ROM 8-bit Microcontroller
AT80C51RD2 ER 6C 3#16 3#8 SKT RECP BOX
AT83C51RB2 80C51 High Performance ROM 8-bit Microcontroller
AT83C51RC2 80C51 High Performance ROM 8-bit Microcontroller
相關(guān)代理商/技術(shù)參數(shù)
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AT80C51RD2-SLSCM 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Microcontroller
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AT80C51RD2-SLSUL 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:80C51 High Performance ROM 8-bit Microcontroller
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