T89C51RD2-3CSCL

The T89C51RD2-3CSCL is designed as high performance CMOS Flash version of the 80C51 CMOS single chip 8-bit microcontroller. It contains a 64 Kbytes Flash memory block for program and for data.

T89C51RD2-3CSCL has eleven features. (1)80C52 compatible which means 8051 pin and instruction compatible and four 8-bit I/O ports (or 6 in 64/68 pins packages), three 16-bit timer /counters, 256 bytes scratch pad RAM and 7 interrupt sources with 4 priority levels. (2)ISP (in-system programming) using standard Vcc power supply. (3)Boot flash 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 1024 bytes expanded RAM (XRAM). (7)Dual data pointer. (8)Improved X2 mode with independant selection for CPU and each peripheral. (9)2K bytes EEPROM block for data storage. (10)Programmable counter array. (11)Power control modes include idle mode and power-down mode. That are all the main features.

Some absolute maximum ratings of T89C51RD2-3CSCL have been concluded into several points as follow. (1)Its ambient temperature under bias would be from 0°C to 70°C for commercial and would be from -40°C to 85°C for industrial. (2)Its storage temperature range would be from -65°C to +150°C. (3)Its voltage on Vcc Vss would be from -0.5V to +6.5V. (4)Its voltage on any pin Vss would be from -0.5V to Vcc+0.5V. (5)Its power dissipation would be 1W. It should be noted that stresses above those listed in absolute maximum ratings may cause permanent damage to device.

Also some DC characteristics about T89C51RD2-3CSCL are concluded as follow. (1)Its input low voltage would be min -0.5V and max 0.2Vcc-0.1V. (2)Its input high voltage except XTAL1, RST would be min 0.2Vcc+0.9V and max Vcc+0.5V. (3)Its input high voltage XTAL1, RST would be min 0.7Vcc and max Vcc+0.5V. (4)Its output low voltage ports 1, 2, 3, 4 and 5 would be max 0.3V at Iol=100uA and would be max 0.45V at Iol=1.6mA and would be max 1.0V at Iol=3.5mA. And so on. If you have any question or suggestion or want to know more information please contact us for details. Thank you!