描述 Description

The AT89LS8252 is a low-power, wide-voltage range, high-performance CMOS 8-bit microcomputer with 8K bytes of Downloadable Flash programmable and erasable read only memory and 2K bytes of EEPROM. The device is manufactured using Atmel’s high density nonvolatile memory technology and is compatible with the indus try standard 80C51 instruction set and pinout.

特性 Features

? Compatible with MCS? 51 Products
? 8K Bytes of In-System Reprogrammable Downloadable Flash Memory
- SPI Serial Interface for Program Downloading
- Endurance: 1,000 Write/Erase Cycles
? 2K Bytes EEPROM
- Endurance: 100,000 Write/Erase Cycles
? 2.7V to 6V Operating Range
? Fully Static Operation: 0 Hz to 12 MHz
? Three-Level Program Memory Lock
? 256 x 8 bit Internal RAM
? 32 Programmable I/O Lines
? Three 16 bit Timer/Counters
? Nine Interrupt Sources
? Programmable UART Serial Channel
? SPI Serial Interface
? Low Power Idle and Power Down Modes
? Interrupt Recovery From Power Down
? Programmable Watchdog Timer
? Dual Data Pointer
? Power Off Flag

簡介

AT89LS8252屬于集成電路（IC）的微控制器。由制造生產(chǎn)的AT89LS8252微控制器微控制器產(chǎn)品是相對復(fù)雜的用戶可編程數(shù)字邏輯器件。這些產(chǎn)品與視為微控制器的器件密切相關(guān)，兩者之間的區(qū)別主要體現(xiàn)在制造商選擇的用詞。不過按照傳統(tǒng)，微控制器集成了工作存儲器，也更可能包含混合信號外設(shè)，并且往往與更簡單的軟件范例結(jié)合使用，旨在重復(fù)執(zhí)行一系列預(yù)定義的任務(wù)。