AT89C2051 带有2K系统内可编程Flash存储器

Flash (Kbytes)   2
RAM (Bytes)   128
F.max (MHz)   24
Vcc (V)   2.7-6.0
I/O Pins   15
UART   1
16-bit Timers   2
Pb-Free Packages    SOIC 20
PDIP 20
AT89C2051 概述

The AT89C2051 is a low-voltage, high-performance CMOS 8-bit microcomputer with 2K bytes of Flash programmable and erasable read-only memory (PEROM). 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 AT89C2051 is a powerful microcomputer which provides a highly-flexible and cost-effective solution to many embedded control applications. The AT89C2051 provides the following standard features: 2K bytes of Flash, 128 bytes of RAM, 15 I/O lines, two 16-bit timer/counters, a five vector two-level interrupt architecture, a full duplex serial port, a precision analog comparator, on-chip oscillator and clock circuitry. In addition, the AT89C2051 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 oscillator disabling all other chip functions until the next hardware reset.

AT89C2051 特性
AT89C2051 订购型号
Speed (MHz) Power
Supply
Ordering Code Package Operation Range
12 2.7V to 6.0V AT89C2051-12PC
AT89C2051-12SC
20P3
20S
Commercial (0°C to 70°C)
AT89C2051-12PI
AT89C2051-12SI
20P3
20S
Industrial (-40°C to 85°C)
24 4.0V to 6.0V AT89C2051-24PC
AT89C2051-24SC
20P3
20S
Commercial (0°C to 70°C)
AT89C2051-24PI
AT89C2051-24SI
20P3
20S
Industrial (-40°C to 85°C)
12 2.7V to 6.0V AT89C2051-12PU
AT89C2051-12SU
20P3
20S
Industrial (-40°C to 85°C)
24 4.0V to 6.0V AT89C2051-24PU
AT89C2051-24SU
20P3
20S
Industrial (-40°C to 85°C)
AT89C2051 应用技术支持与电子电路设计开发资源下载
      
  1. AT89C2051 数据手册DataSheet 下载. PDF
  2. AT89C2051 汽车级数据手DataSheet 下载. PDF
  3. 80C51微控制器的复位输入. PDF (编号: Tech 8051 00049)
  4. 80C51在系统Flash编程. PDF (编号:8051 00050)
  5. Package Adapters of 80C51 Devices (Other, updated 10/04)
    This Excel spreadsheet list available package adapters for Atmel 80C51 microcontrollers