AT89C51RD2 Atmel Corporation, AT89C51RD2 Datasheet - Page 130

• Manufacturer Part Number: AT89C51RD2
• Manufacturer: Atmel Corporation

Specifications of AT89C51RD2

• Flash (kbytes): 64 Kbytes
• Max. Operating Frequency: 60 MHz
• Cpu: 8051-12C
• Max I/o Pins: 32
• Spi: 1
• Uart: 1
• Sram (kbytes): 2
• Self Program Memory: API
• Operating Voltage (vcc): 2.7 to 5.5
• Timers: 4
• Isp: UART
• Watchdog: Yes

130
STANDARD NOTES FOR PQFP/ VQFP / TQFP / DQFP
AT89C51RD2/ED2
1/ CONTROLLING DIMENSIONS : INCHES
2/ ALL DIMENSIONING AND TOLERANCING CONFORM TO ANSI Y 14.5M -
1982.
3/ "D1 AND E1" DIMENSIONS DO NOT INCLUDE MOLD PROTUSIONS.
THE TOP PACKAGE BODY SIZE MAY BE SMALLER THAN THE BOTTOM
4/ DATUM PLANE "H" LOCATED AT MOLD PARTING LINE AND
COINCIDENT WITH LEAD, WHERE LEAD EXITS PLASTIC BODY AT
5/ DATUM "A" AND "D" TO BE DETERMINED AT DATUM PLANE H.
6/ DIMENSION " f " DOES NOT INCLUDE DAMBAR PROTUSION ALLOWABLE
" f " DIMENSION AT MAXIMUM MATERIAL CONDITION .
DAMBAR CANNOT BE LOCATED ON THE LOWER RADIUS OR THE FOOT.
MOLD PROTUSIONS SHALL NOT EXCEED 0.25 mm (0.010 INCH).
PACKAGE BODY SIZE BY AS MUCH AS 0.15 mm.
BOTTOM OF PARTING LINE.
DAMBAR PROTUSION SHALL BE 0.08mm/.003" TOTAL IN EXCESS OF THE
4235K–8051–05/08