Datasheet > AT89LS51

AT89LS51

更新时间： 2024-11-25 14:53:55

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
31页	472K
描述
Low-voltage, high-performance CMOS 8-bit microcontroller with 4KB of ISP flash memory. The device

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AT89LS51 数据手册

Features

• Compatible with MCS^®-51 Products

• 4K Bytes of In-System Programmable (ISP) Flash Memory

– Endurance: 10,000 Write/Erase Cycles

• 2.7V to 4.0V Operating Range

• Fully Static Operation: 0 Hz to 16 MHz

• Three-level Program Memory Lock

• 128 x 8-bit Internal RAM

• 32 Programmable I/O Lines

8-bit

• Two 16-bit Timer/Counters

• Six Interrupt Sources

Low-Voltage

Microcontroller

with 4K Bytes

In-System

Programmable

Flash

• Full Duplex UART Serial Channel

• Low-power Idle and Power-down Modes

• Interrupt Recovery from Power-down Mode

• Watchdog Timer

• Dual Data Pointer

• Power-off Flag

• Flexible ISP Programming (Byte and Page Mode)

• Green (Pb/Halide-free) Packaging Option

1. Description

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 pro-

gram memory to be reprogrammed in-system or by a conventional nonvolatile

memory programmer. By combining a versatile 8-bit CPU with in-system programma-

ble 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.

AT89LS51

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 opera-

tion 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.

3053C–MICRO–6/08

12 3 4 5 6 7...31

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与AT89LS51相关器件

型号	品牌	获取价格	描述	数据表
AT89LS51_06	ATMEL	获取价格	8-bit Low-Voltage Microcontroller with 4K Bytes In-System Programmable Flash
AT89LS51_08	ATMEL	获取价格	8-bit Low-Voltage Microcontroller with 4K Bytes In-System Programmable Flash
AT89LS51-16AC	ATMEL	获取价格	8-bit Low-Voltage Microcontroller with 4K Bytes In-System Programmable Flash
AT89LS51-16AI	ATMEL	获取价格	8-bit Low-Voltage Microcontroller with 4K Bytes In-System Programmable Flash
AT89LS51-16AU	ATMEL	获取价格	8-bit Low-Voltage Microcontroller with 4K Bytes In-System Programmable Flash
AT89LS51-16JC	ATMEL	获取价格	8-bit Low-Voltage Microcontroller with 4K Bytes In-System Programmable Flash
AT89LS51-16JI	ATMEL	获取价格	8-bit Low-Voltage Microcontroller with 4K Bytes In-System Programmable Flash
AT89LS51-16JU	ATMEL	获取价格	8-bit Low-Voltage Microcontroller with 4K Bytes In-System Programmable Flash
AT89LS51-16PC	ATMEL	获取价格	8-bit Low-Voltage Microcontroller with 4K Bytes In-System Programmable Flash
AT89LS51-16PI	ATMEL	获取价格	8-bit Low-Voltage Microcontroller with 4K Bytes In-System Programmable Flash

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