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T89C51RD2-DDSC-M

更新时间： 2024-09-29 22:29:27

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
86页	935K
描述
0 to 40MHz Flash Programmable 8-bit Microcontroller

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T89C51RD2-DDSC-M 数据手册

T89C51RD2

0 to 40MHz Flash Programmable 8-bit Microcontroller

1. Description

ATMEL Wireless and Microcontrollers T89C51RD2 is mechanism (X2 mode). Pinout is either the standard 40/

high performance CMOS Flash version of the 80C51 44 pins of the C52 or an extended version with 6 ports

CMOS single chip 8-bit microcontroller. It contains a in a 64/68 pins package.

64 Kbytes Flash memory block for program and for data.

The fully static design of the T89C51RD2 allows to

The 64 Kbytes Flash memory can be programmed either reduce system power consumption by bringing the clock

in parallel mode or in serial mode with the ISP capability frequency down to any value, even DC, without loss of

or with software. The programming voltage is internally data.

generated from the standard V pin.

The T89C51RD2 has 2 software-selectable modes of

The T89C51RD2 retains all features of the ATMEL reduced activity for further reduction in power

Wireless and Microcontrollers 80C52 with 256 bytes of consumption. In the idle mode the CPU is frozen while

internal RAM, a 7-source 4-level interrupt controller and the peripherals and the interrupt system are still

three timer/counters.

operating. In the power-down mode the RAM is saved

and all other functions are inoperative.

In addition, the T89C51RD2 has a Programmable

Counter Array, an XRAM of 1024 bytes, an EEPROM The added features of the T89C51RD2 makes it more

of 2048 bytes, a Hardware Watchdog Timer, a more powerful for applications that need pulse width

versatile serial channel that facilitates multiprocessor modulation, high speed I/O and counting capabilities

communication (EUART) and a speed improvement such as alarms, motor control, corded phones, smart card

readers.

2. Features

•

80C52 Compatible

•

Dual Data Pointer

•

8051 pin and instruction compatible

Four 8-bit I/O ports (or 6 in 64/68 pins packages)

Three 16-bit timer/counters

Variable length MOVX for slow RAM/peripherals

Improved X2 mode with independant selection for

CPU and each peripheral

•

2 k bytes EEPROM block for data storage

256 bytes scratch pad RAM

7 Interrupt sources with 4 priority levels

•

100K Write cycle

•

ISP (In System Programming) using standard V

power supply.

Programmable Counter Array with:

•

High Speed Output,

Boot FLASH contains low level FLASH

programming routines and a default serial loader

Compare / Capture,

Pulse Width Modulator,

Watchdog Timer Capabilities

High-Speed Architecture

•

40 MHz in standard mode

•

Asynchronous port reset

Full duplex Enhanced UART

Low EMI (inhibit ALE)

20 MHz in X2 mode (6 clocks/machine cycle)

•

64K bytes on-chip Flash program / data Memory

•

Byte and page (128 bytes) erase and write

10k write cycles

Hardware Watchdog Timer (One-time enabled with

Reset-Out)

On-chip 1024 bytes expanded RAM (XRAM)

•

Power control modes:

•

Software selectable size (0, 256, 512, 768, 1024

bytes)

•

Idle Mode.

Power-down mode.

•

768 bytes selected at reset for T87C51RD2

compatibility

Rev. F - 15 February, 2001

12 3 4 5 6 7...86

中文翻译

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与T89C51RD2-DDSC-M相关器件

型号	品牌	获取价格	描述	数据表
T89C51RD2-DDSI-L	ATMEL	获取价格	0 to 40MHz Flash Programmable 8-bit Microcontroller
T89C51RD2-DDSI-M	ATMEL	获取价格	0 to 40MHz Flash Programmable 8-bit Microcontroller
T89C51RD2-DDTCL	ATMEL	获取价格	Microcontroller, 8-Bit, FLASH, 25MHz, CMOS, DIE
T89C51RD2-DDTC-L	ATMEL	获取价格	0 to 40MHz Flash Programmable 8-bit Microcontroller
T89C51RD2-DDTCM	ATMEL	获取价格	Microcontroller, 8-Bit, FLASH, 40MHz, CMOS, DIE
T89C51RD2-DDTC-M	ATMEL	获取价格	0 to 40MHz Flash Programmable 8-bit Microcontroller
T89C51RD2-DDTIL	ATMEL	获取价格	Microcontroller, 8-Bit, FLASH, 25MHz, CMOS, DIE
T89C51RD2-DDTI-L	ATMEL	获取价格	0 to 40MHz Flash Programmable 8-bit Microcontroller
T89C51RD2-DDTIM	ATMEL	获取价格	Microcontroller, 8-Bit, FLASH, 40MHz, CMOS, DIE
T89C51RD2-DDTI-M	ATMEL	获取价格	0 to 40MHz Flash Programmable 8-bit Microcontroller

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