at89c51rd2-smsum ATMEL Corporation, at89c51rd2-smsum Datasheet - Page 130
at89c51rd2-smsum
Manufacturer Part Number
at89c51rd2-smsum
Description
8-bit Flash Microcontroller
Manufacturer
ATMEL Corporation
Datasheet
1.AT89C51RD2-SMSUM.pdf
(137 pages)
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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
4235J–8051–01/08
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