AT89LS51 _ WOSENDONGLI 代理ATMEL单片机AT89LS51
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AT89LS51 带有4K系统内可编程Flash系统

Flash (Kbytes)   4
ISP   SPI
RAM (Bytes)   128
F.max (MHz)   16
Vcc (V)   2.7-4.0
I/O Pins   32
UART   1
16-bit Timers   2
Watchdog   Yes
Pb-Free Packages   TQFP 44 
PDIP 40 
PLCC 44

Low-Voltage Microcontroller with 4K Bytes In-System Programmable Flash

AT89LS51 概述

The AT89LS51 is a low-voltage, high-performance CMOS 8-bit microcontroller with 4K bytes of in-system programmable Flash memory. The device is manufactured using Atmel’s high-density nonvolatile memory technology and is compatible with the industry-standard 80C51 instruction set and pinout. The on-chip Flash allows the programmemory to be reprogrammed in-system or by a conventional nonvolatile memory programmer. By combining a versatile 8-bit CPU with in-system programmable

Flash on a monolithic chip, the Atmel AT89LS51 is a powerful microcontroller which provides a highly-flexible and cost-effective solution to many embedded control applications.

The AT89LS51 provides the following standard features: 4K bytes of Flash, 128 bytes of RAM, 32 I/O lines, Watchdog timer, two data pointers, two 16-bit timer/counters, a five-vector two-level interrupt architecture, a full duplex serial port, on-chip oscillator, and clock circuitry. In addition, the AT89LS51 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 external interrupt or hardware reset.

AT89LS51 特性
AT89LS51 订购型号
Speed (MHz)) 电源供应 订购型号 封装 适用范围
16 2.7V to 4.0V AT89LS51-16AU
AT89LS51-16JU
AT89LS51-16PU
44A
44J
40P6
Industrial (-40°C to 85°C)
AT89LS51 应用技术支持与电子电路设计开发资源下载
  1. AT89LS51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)