AT89C55WD-33PC Datasheet

IC型號(hào)：
AT89C55WD-33PC
PDF描述：
8-bit Microcontroller with 20K Bytes Flash
文件大?。?/label>
273.93KB
PDF頁(yè)數(shù)：
37頁(yè)
芯片廠家：
ATMEL

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Features

鈥?/div>

Compatible with MCS

廬

-51 Products

20K Bytes of Reprogrammable Flash Memory

Endurance: 1000 Write/Erase Cycles

4V to 5.5V Operating Range

Fully Static Operation: 0 Hz to 33 MHz

Three-level Program Memory Lock

256 x 8-bit Internal RAM

32 Programmable I/O Lines

Three 16-bit Timer/Counters

Eight Interrupt Sources

Programmable Serial Channel

Low-power Idle and Power-down Modes

Interrupt Recovery from Power-down Mode

Hardware Watchdog Timer

Dual Data Pointer

Power-off Flag

8-bit

Microcontroller

with 20K Bytes

Flash

AT89C55WD

Description

The AT89C55WD is a low-power, high-performance CMOS 8-bit microcontroller with

20K bytes of Flash programmable read only memory and 256 bytes of RAM. The

device is manufactured using Atmel鈥檚 high-density nonvolatile memory technology and

is compatible with the industry standard 80C51 and 80C52 instruction set and pinout.

The on-chip Flash allows the program memory to be user programmed by a conven-

tional nonvolatile memory programmer. By combining a versatile 8-bit CPU with Flash

on a monolithic chip, the Atmel AT89C55WD is a powerful microcomputer which pro-

vides a highly flexible and cost effective solution to many embedded control

applications.

The AT89C55WD provides the following standard features: 20K bytes of Flash, 256

bytes of RAM, 32 I/O lines, three 16-bit timer/counters, a six-vector, two-level interrupt

architecture, a full-duplex serial port, on-chip oscillator, and clock circuitry. In addition,

the AT89C55WD 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 con-

tinue 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.

Rev. 1921B鈥揗ICRO鈥?9/02

制造商
Atmel
產(chǎn)品種類
8-bit Microcontrollers (MCU)
核心
8051
數(shù)據(jù)總線寬度
8 bit
最大時(shí)鐘頻率
33 MHz
程序存儲(chǔ)器大小
20 KB
數(shù)據(jù) RAM 大小
256 B
片上 ADC
No
工作電源電壓
4.5 V to 5.5 V
封裝 / 箱體
PDIP-40
安裝風(fēng)格
Through Hole
高度
4.83 mm
長(zhǎng)度
52.58 mm
最大工作溫度
+ 85 C
最小工作溫度
- 40 C
可編程輸入/輸出端數(shù)量
32
定時(shí)器數(shù)量
3 bit
程序存儲(chǔ)器類型
Flash
工廠包裝數(shù)量
9
Supply Voltage - Max
5.5 V
Supply Voltage - Min
4.5 V
寬度
13.97 mm

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