用戶中心
· 企業(yè)空間 首頁(yè) | 資訊 | 技術(shù) | 產(chǎn)品 | 企業(yè) | 直播 | 專題 | 智能制造 | 論壇| 在線研討會(huì)
龍人旗下深圳市龍芯世紀(jì)科技有限公司
  • AT89C51RD2 帶有64K系統(tǒng)可編程Flash存儲(chǔ)器  
  • 發(fā)布時(shí)間:2009/7/28 15:23:53   修改時(shí)間:2009/7/28 15:23:53 瀏覽次數(shù):4623
  • 首頁(yè)ATMEL 愛特梅爾8051單片機(jī)

    AT89C51RD2 帶有64K系統(tǒng)可編程Flash存儲(chǔ)器

    Flash (Kbytes)   64
    ISP   UART
    Self Program Memor   API
    RAM (Bytes)   2048
    F.max (MHz)   60
    Vcc (V)   2.7-5.5
    I/O Pins   32
    UART   1
    16-bit Timers   3
    Watchdog   Yes
    SPI   Yes
    Pb-Free Packages    LQFP 64
     LQFP 44
     PLCC 44
     PLCC 68
    AT89C51RD2 概述

    AT89C51RD2/ED2 is high performance CMOS Flash version of the 80C51 CMOS single chip 8-bit microcontroller. It contains a 64-Kbyte Flash memory block for code and for data.The 64-Kbytes 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.

    The AT89C51RD2/ED2 retains all of the features of the Atmel 80C52 with 256 bytes of internal RAM, a 9-source 4-level interrupt controller and three timer/counters. The AT89C51ED2 provides 2048 bytes of EEPROM for nonvolatile data storage.
    In addition, the AT89C51RD2/ED2 has a Programmable Counter Array, an XRAM of 1792 bytes, a Hardware Watchdog Timer, SPI interface, Keyboard, a more versatile serial channel that facilitates multiprocessor communication (EUART) and a speed< improvement mechanism (X2 Mode).
    The fully static design of the AT89C51RD2/ED2 allows to reduce system power consumption by bringing the clock frequency down to any value, including DC, without lossof data.The AT89C51RD2/ED2 has 2 software-selectable modes of reduced activity and an 8-bit clock prescaler for further reduction in power consumption. In the Idle mode the CPU is frozen while the peripherals and the interrupt system are still operating.

    In the Powerdown mode the RAM is saved and all other functions are inoperative.
    The added features of the AT89C51RD2/ED2 make it more powerful for applications that need pulse width modulation, high speed I/O and counting capabilities such as alarms, motor control, corded phones, and smart card readers.

    AT89C51RD2 特性
    • 80C52 Compatible
      – 8051 Instruction Compatible
      – Six 8-bit I/O Ports (64 Pins or 68 Pins Versions)
      – Four 8-bit I/O Ports (44 Pins Version)
      – Three 16-bit Timer/Counters
      – 256 Bytes Scratch Pad RAM
      – 9 Interrupt Sources with 4 Priority Levels
    • Integrated Power Monitor (POR/PFD) to Supervise Internal Power Supply
    • ISP (In-System Programming) Using Standard VCC Power Supply
    • 2048 Bytes Boot ROM Contains Low Level Flash Programming Routines and a Default
      Serial Loader
    • High-speed Architecture
      – 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)
    • 64K Bytes On-chip Flash Program/Data Memory
      – Byte and Page (128 Bytes) Erase and Write
      – 100k Write Cycles
    • On-chip 1792 bytes Expanded RAM (XRAM)
      – Software Selectable Size (0, 256, 512, 768, 1024, 1792 Bytes)
      – 768 Bytes Selected at Reset for T89C51RD2 Compatibility
    • On-chip 2048 Bytes EEPROM Block for Data Storage (AT89C51ED2 Only)
      – 100K Write Cycles
    • Dual Data Pointer
    • Variable Length MOVX for Slow RAM/Peripherals
    • Improved X2 Mode with Independent Selection for CPU and Each Peripheral
    • Keyboard Interrupt Interface on Port 1
    • SPI Interface (Master/Slave Mode)
    • 8-bit Clock Prescaler
      ? 16-bit Programmable Counter Array
      – High Speed Output
      – Compare/Capture
      – Pulse Width Modulator
      – Watchdog Timer Capabilities
    • Asynchronous Port Reset
    • Full-duplex Enhanced UART with Dedicated Internal Baud Rate Generator
    • Low EMI (Inhibit ALE)
    • Hardware Watchdog Timer (One-time Enabled with Reset-Out), Power-off Flag
    • Power Control Modes: Idle Mode, Power-down Mode
    • Single Range Power Supply: 2.7V to 5.5V
    • Industrial Temperature Range (-40 to +85°C)
    • Packages: PLCC44, VQFP44, PLCC68, VQFP64
    AT89C51RD2 訂購(gòu)型號(hào)
    Part Number Data EEPROM SupplyVoltage TemperatureRange Package Packing ProductMarking
    AT89C51RD2-SLSUM No 2.7V - 5.5V Industrial
    Green
    PLCC44 Stick AT89C51RD2-UM
    AT89C51RD2-RLTUM 2.7V - 5.5V Industrial
    Green
    VQFP44 Tray AT89C51RD2-UM
    AT89C51RD2-RDTUM 2.7V - 5.5V Industrial
    Green
    VQFP64 Tray AT89C51RD2-UM
    AT89C51RD2-SMSUM 2.7V - 5.5V Industrial
    Green
    PLCC68 Stick AT89C51RD2-UM
    AT89C51RD2 技術(shù)支持
    1. AT89C51RD2數(shù)據(jù)手冊(cè)DataSheet 下載. PDF
    2. 80C51微控制器的復(fù)位輸入. PDF (編號(hào): Tech 8051 00049)
    3. 80C51在系統(tǒng)Flash編程. PDF (編號(hào):8051 00050)
    4. Device Programmers for 8051 Devices (Other, updated 09/07)
      This Excel spreadsheet provide summary information on device programmers supporting Atmel 8051 microcontrollers
    5. Emulators for 80C51 Devices (Other, updated 11/03)
      This Excel spreadsheet provide summary information on emulation support for Atmel 80C51 microcontrollers
    6. Package Adapters of 80C51 Devices (Other, updated 10/04)
      This Excel spreadsheet list available package adapters for Atmel 80C51 microcontrollers
  • 企業(yè)介紹
提供全方位的電子產(chǎn)品技術(shù)信息解決方案 嵌入式微處理器系統(tǒng) 16/32位系列 個(gè)人數(shù)字助理PDA,StrongARM 處理器及開發(fā)工具 廉價(jià)的單片機(jī)PIC12系列 DSP信號(hào)處理器系統(tǒng)等嵌入式控制器 濾波器 模數(shù)轉(zhuǎn)換器 D/A A/D轉(zhuǎn)換器 高性能運(yùn)放 非易失存儲(chǔ)器 射頻和微波電路 C…  更多>>
  • 聯(lián)系方式

龍人旗下深圳市龍芯世紀(jì)科技有限公司

聯(lián)系人:BDTIC

地址:深圳市福田區(qū)福虹路世界貿(mào)易廣場(chǎng)B座12F

郵編:100089

電話:0755-83574969

傳真:0755-83778351

公司網(wǎng)址:http://www.BDTIC.com/IC

  • 該空間手機(jī)版

掃描此二維碼即可訪問該空間手機(jī)版

  • 在線反饋
1.我有以下需求:



2.詳細(xì)的需求:
姓名:
單位:
電話:
郵件:
您還沒有登錄,請(qǐng)登陸,
如果您還沒有注冊(cè),點(diǎn)擊這里注冊(cè).
  • 網(wǎng)友反饋
  • 李小東 在2023/8/23 0:15:00留言
  • 留言類型:貴公司產(chǎn)品銷售人員聯(lián)系我,貴公司技術(shù)支持人員聯(lián)系我,
  • 詳細(xì)留言:了解產(chǎn)品的合作
  • 徐工 在2022/11/23 15:39:00留言
  • 留言類型:我讓貴公司技術(shù)支持人員聯(lián)系我,
  • 詳細(xì)留言:ATMEGA32 TWI硬件從機(jī)使用。
  • 徐工 在2022/11/21 9:30:00留言
  • 留言類型:我讓貴公司技術(shù)支持人員聯(lián)系我,
  • 詳細(xì)留言:ATMEAG32 硬件11C主從通信
  • 于方元 在2021/7/8 19:21:00留言
  • 留言類型:得到貴公司產(chǎn)品詳細(xì)資料,得到貴公司產(chǎn)品的價(jià)格信息,貴公司產(chǎn)品銷售人員聯(lián)系我,貴公司技術(shù)支持人員聯(lián)系我,
  • 詳細(xì)留言:全以太網(wǎng)工控系統(tǒng)開發(fā)。
  • 明小姐 在2015/3/26 16:06:00留言
  • 留言類型:得到貴公司產(chǎn)品詳細(xì)資料,
  • 詳細(xì)留言:看了您公司,還看了HYDAC溫度傳感器:http://www.hydac-zh.com/wdcgq/ 賀德克溫度傳感器:http://www.hydac-zh.com/wdcgq/ HYDAC流量傳感器:http://www.hydac-zh.com/llcgq/ 賀德克流量傳感器:http://www.hydac-zh.com/llcgq/ HYDAC液位傳感器:http://www.hydac-zh.com/yeweichuanganqi/ 賀德克液位傳感器:http://www.hydac-zh.com/yeweichuanganqi/ HYDAC位移傳感器:http://www.hydac-zh.com/ycgq/ 賀德克位移傳感器:http://www.hydac-zh.com/ycgq/ HYDAC旋轉(zhuǎn)傳感器:http://www.hydac-zh.com/xzcgq/ 賀德克旋轉(zhuǎn)傳感器:http://www.hydac-zh.com/xzcgq/
更多請(qǐng)進(jìn)入空間管理中心查看
關(guān)于我們 | 網(wǎng)站地圖 | 聯(lián)系我們
© 2003-2018    經(jīng)營(yíng)許可編號(hào):京ICP證120335號(hào)
公安機(jī)關(guān)備案號(hào):110102002318  服務(wù)熱線:010-82053688
我要反饋