AT89C51RD2-RDTUM 带有64K系统内可编程Flash存储器VQFP-64封装

Flash (Kbytes)   64
ISP   UART
Self Program Memor   API
RAM (Bytes)   2048
F.max (MHz)   60
Vcc (V)   2.7-5.5
I/O Pins   32
UART   1
16-bit Timers   3
Watchdog   Yes
SPI   Yes
Pb-Free Packages    LQFP 64
 LQFP 44
 PLCC 44
 PLCC 68
AT89C51RD2-RDTUM 概述

AT89C51RD2/ED2 is high performance CMOS Flash version of the 80C51 CMOS single chip 8-bit microcontroller. It contains a 64-Kbyte Flash memory block for code and for data.The 64-Kbytes Flash memory can be programmed either in parallel mode or in serial mode with the ISP capability or with software. The programming voltage is internally generated from thestandard VCC pin.The AT89C51RD2/ED2 retains all of the features of the Atmel 80C52 with 256 bytes of internal RAM, a 9-source 4-level interrupt controller and three timer/counters. The AT89C51ED2 provides 2048 bytes of EEPROM for nonvolatile data storage.
In addition, the AT89C51RD2/ED2 has a Programmable Counter Array, an XRAM of 1792 bytes, a Hardware Watchdog Timer, SPI interface, Keyboard, a more versatile serial channel that facilitates multiprocessor communication (EUART) and a speed improvement mechanism (X2 Mode).

The fully static design of the AT89C51RD2/ED2 allows to reduce system power consumption by bringing the clock frequency down to any value, including DC, without loss of data. The AT89C51RD2/ED2 has 2 software-selectable modes of reduced activity and an 8-bit clock prescaler for further reduction in power consumption. In the Idle mode the CPU is frozen while the peripherals and the interrupt system are still operating. In the Power-down mode the RAM is saved and all other functions are inoperative.
The added features of the AT89C51RD2/ED2 make it more powerful for applications that need pulse width modulation, high speed I/O and counting capabilities such as alarms, motor control, corded phones, and smart card readers.

AT89C51RD2-RDTUM 特性
AT89C51RD2-RDTUM 订购型号
Part Number Data EEPROM Supply Voltage Temperature
Range
Package Packing Product Marking
AT89C51RD2-SLSUM No 2.7V - 5.5V Industrial
Green
PLCC44 Stick AT89C51RD2-UM
AT89C51RD2-RLTUM VQFP44 Tray AT89C51RD2-UM
AT89C51RD2-RDTUM VQFP64 Tray AT89C51RD2-UM
AT89C51RD2-SMSUM PLCC68 Stick AT89C51RD2-UM
AT89C51ED2-SLSUM Yes PLCC44 Stick AT89C51ED2-UM
AT89C51ED2-RLTUM VQFP44 Tray AT89C51ED2-UM
AT89C51ED2- SMSUM PLCC68 Stick AT89C51ED2-UM
AT89C51ED2-RDTUM VQFP64 Tray AT89C51ED2-UM
AT89C51RD2-RDTUM 应用技术支持与电子电路设计开发资源下载
  1. AT89C51ED2 数据手册DataSheet 下载. PDF
  2. 80C51微控制器的复位输入. PDF (编号: Tech 8051 00049)
  3. 80C51在系统Flash编程. PDF (编号:8051 00050)