Datasheet > AT89C2051_08

AT89C2051_08

更新时间： 2024-11-18 06:38:27

品牌	Logo	应用领域
爱特美尔 - ATMEL		闪存微控制器
页数	文件大小	规格书
19页	380K
描述
8-bit Microcontroller with 2K Bytes Flash

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数据手册

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AT89C2051_08 数据手册

Features

• Compatible with MCS^®-51Products

• 2K Bytes of Reprogrammable Flash Memory

– Endurance: 10,000 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

8-bit

• Two 16-bit Timer/Counters

• Six Interrupt Sources

Microcontroller

with 2K Bytes

Flash

• 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

1. Description

AT89C2051

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 power-

ful 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 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.

0368H–MICRO–6/08

12 3 4 5 6 7...19

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