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  • 明小姐 在2015/3/26 16:06:00留言
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  • 详细留言:看了您公司,还看了HYDAC温度传感器:http://www.hydac-zh.com/wdcgq/ 贺德克温度传感器:http://www.hydac-zh.com/wdcgq/ HYDAC流量传感器:http://www.hydac-zh.com/llcgq/ 贺德克流量传感器:http://www.hydac-zh.com/llcgq/ HYDAC液位传感器:http://www.hydac-zh.com/yeweichuanganqi/ 贺德克液位传感器:http://www.hydac-zh.com/yeweichuanganqi/ HYDAC位移传感器:http://www.hydac-zh.com/ycgq/ 贺德克位移传感器:http://www.hydac-zh.com/ycgq/ HYDAC旋转传感器:http://www.hydac-zh.com/xzcgq/ 贺德克旋转传感器:http://www.hydac-zh.com/xzcgq/
  • 王力 在2014/12/10 18:04:00留言
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  • 详细留言:我已经购买了贵公司的ARK-2120无风扇嵌入式工控机,除了你家我还看了: E+H:http://www.endress-h.com pilz:http://www.pilz-zh.com 邦纳:http://www.banner-cn.com 穆格:http://www.moog-cn.com 穆格伺服阀:http://www.moog-cn.com 哈威:http://www.hawe-zh.com 力士乐:http://www.rexroth-zh.com 请问这些是正规的吗?可以开发票吗?
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  • 详细留言:贵公司的以太网控制器芯片DM9000等型号有需要的请联系我.
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  • 详细留言:LTP5901-WHM的资料和价格
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  • 详细留言:有需求 13632799168 祝先生
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龙人旗下深圳市龙芯世纪科技有限公司
  • AT89S2051 带有2K系统内可编程Flash系统  
  • 发布时间:2009/8/11 15:42:28   修改时间:2009/8/11 15:42:28 浏览次数:783
  • AT89S2051 带有2K系统内可编程Flash系统

    Flash (Kbytes)   2
    ISP   SPI
    RAM (Bytes)   256
    F.max (MHz)   24
    Vcc (V)   2.7-5.5
    I/O Pins   15
    UART   Yes
    16-bit Timers   2
    Pb-Free Packages   SOIC (300mil) 20 
    PDIP 20

    2.7-Volt, 80C31 Microcontroller with 2K Bytes In-System Programmable Flash, 20-pin Package.

    AT89S2051 概述

    The AT89S2051/S4051 is a low-voltage, high-performance CMOS 8-bit microcontroller with 2K/4K bytes of In-System Programmable (ISP) Flash program memory. The device is manufactured using Atmel’s high-density nonvolatile memory technology and is compatible with the industry-standard MCS-51 instruction set. By combining a versatile 8-bit CPU with Flash on a monolithic chip, the Atmel AT89S2051/S4051 is a powerful microcontroller which provides a highly-flexible and cost-effective solution to many embedded control applications. Moreover, the AT89S2051/S4051 is designed to be function compatible with the AT89C2051/C4051 devices, respectively.

    The AT89S2051/S4051 provides the following standard features: 2K/4K bytes of Flash, 256 bytes of RAM, 15 I/O lines, two 16-bit timer/counters, a six-vector, fourlevel interrupt architecture, a full duplex enhanced serial port, a precision analog comparator, on-chip and clock circuitry. Hardware support for PWM with 8-bit resolution and 8-bit prescaler is available by reconfiguring the two on-chip timer/counters. In addition, the AT89S2051/S4051 is designed with static logic for operation down to zero frequency and supports two software-selectable power saving modes. The Idle Mode stops the CPU while allowing the RAM, timer/counters, serial port and interrupt system to continue functioning. The power-down mode saves the RAM contents but freezes the disabling all other chip functions until the next external interrupt or hardware reset.

    The on-board Flash program memory is accessible through the ISP serial interface. Holding RST active forces the device into a serial programming interface and allows the program memory to be written to or read from, unless one or more lock bits have been activated.

    AT89S2051 特性
    • Compatible with MCS?51 Products
    • 2K/4K Bytes of In-System Programmable (ISP) Flash Program Memory
      – Serial Interface for Program Downloading
      – Endurance: 10,000 Write/Erase Cycles
    • 2.7V to 5.5V Operating Range
    • Fully Static Operation: 0 Hz to 24 MHz (x1 and x2 Modes)
    • Two-level Program Memory Lock
    • 256 x 8-bit Internal RAM
    • 15 Programmable I/O Lines
    • Two 16-bit Timer/Counters
    • Six Interrupt Sources
    • Programmable Serial UART Channel
    • Direct LED Drive Outputs
    • On-chip Analog Comparator with Selectable Interrupt
    • 8-bit PWM (Pulse-width Modulation)
    • Low Power Idle and Power-down Modes
    • Brownout Reset
    • Enhanced UART Serial Port with Framing Error Detection and Automatic
      Address Recognition
    • Internal Power-on Reset
    • Interrupt Recovery from Power-down Mode
    • Programmable and Fuseable x2 Clock Option
    • Four-level Enhanced Interrupt Controller
    • Power-off Flag
    • Flexible Programming (Byte and Page Modes)
      – Page Mode: 32 Bytes/Page
    • User Serviceable Signature Page (32 Bytes)
    AT89S2051 订购型号
    Speed
    (MHz))
    电源供应 订购型号 封装 适用范围
    24 2.7V to 5.5V AT89S2051-24PU
    AT89S2051-24SU
    20P3
    20S2
    Industrial (-40° C to 85° C)
    AT89S2051 技术支持
    1. AT89S2051数据手册DataSheet 下载. PDF
    2. 80C51微控制器的复位输入. PDF (编号: Tech 8051 00049)
    3. 80C51在系统Flash编程. PDF (编号: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
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