Datasheet > 89C4051

89C4051

更新时间： 2022-11-26 05:44:55

品牌	Logo	应用领域
爱特美尔 - ATMEL		微控制器
页数	文件大小	规格书
15页	269K
描述
8-Bit Microcontroller with 4K Bytes Flash

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数据手册

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89C4051 数据手册

Features

• Compatible with MCS-51™ Products

• 4K Bytes of Reprogrammable Flash Memory

– Endurance: 1,000 Write/Erase Cycles

• 3.0V 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

• Brown-Out Detection

8-Bit

Microcontroller

with 4K Bytes

Flash

Description

The AT89C4051 is a low-voltage, high-performance CMOS 8-bit microcomputer with

4K 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 AT89C4051 is a pow-

erful microcomputer which provides a highly flexible and cost effective solution to

many embedded control applications.

AT89C4051

Preliminary

The AT89C4051 provides the following standard features: 4K 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 AT89C4051 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

hardware reset.

Pin Configuration

PDIP/SOIC

/VPP

Rev. 1001A–02/98

12 3 4 5 6 7...15

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