AT89C2051 带有2K系统内可编程Flash存储器

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

• Compatible with MCS?-51Products
• 2K Bytes of Reprogrammable Flash Memory
  – Endurance: 1,000 Write/Erase Cycles
• 2.7V to 6V Operating Range
• Fully Static Operation: 0 Hz to 24 MHz
• Two-level Program Memory Lock
• 128 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
• Low-power Idle and Power-down Modes
• Green (Pb/Halide-free) Packaging Option

AT89C2051 订购型号

AT89C2051 技术支持

1. AT89C2051 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