Product Summary

The AT89C51ED2-UM is high performance CMOS Flash version of the 80C51 CMOS single chip 8-bit microcontroller. The AT89C51ED2-UM contains a 64-Kbyte Flash memory block for code and for data. The AT89C51ED2-UM 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.

Parametrics

AT89C51ED2-UM absolute maximum ratings: (1) I = industrial: -40 to 85°C; (2) Storage Temperature: -65 to +150°C; (3) Voltage on Vcc to Vss: -0.5V to +6.0V; (4) VVoltage on Any Pin to Vss: -0.5V to Vcc +0.5V; (5) Power Dissipation: 1W.

Features

AT89C51ED2-UM features: (1) ntegrated Power Monitor (POR/PFD) to Supervise Internal Power Supply; (2) ISP (In-System Programming) Using Standard Vcc Power Supply; (3) 048 Bytes Boot ROM Contains Low Level Flash Programming Routines and a Default Serial Loader; (4) High-speed Architecture; (5) 64K Bytes On-chip Flash Program/Data Memory; (6) On-chip 1792 bytes Expanded RAM (XRAM) ; (7) Power Control Modes: Idle Mode, Power-down Mode; (8) Single Range Power Supply: 2.7V to 5.5V; (9) Industrial Temperature Range (-40 to +85°C) ; (10) Asynchronous Port Reset.

Diagrams

AT89C51ED2-UM Block Diagram