AT89C51ED2-RDTUM datasheet(130/137 Pages) ATMEL

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AT89C51ED2-RDTUM 데이터시트(PDF) 130 Page - ATMEL Corporation

130 / 137 page

130

4235K–8051–05/08

AT89C51RD2/ED2

STANDARD NOTES FOR PQFP

/ VQFP / TQFP / DQFP

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.

MOLD PROTUSIONS SHALL NOT EXCEED 0.25 mm (0.010 INCH).

THE TOP PACKAGE BODY SIZE MAY BE SMALLER THAN THE BOTTOM

PACKAGE BODY SIZE BY AS MUCH AS 0.15 mm.

4/ DATUM PLANE "H" LOCATED AT MOLD PARTING LINE AND

COINCIDENT WITH LEAD, WHERE LEAD EXITS PLASTIC BODY AT

BOTTOM OF PARTING LINE.

5/ DATUM "A" AND "D" TO BE DETERMINED AT DATUM PLANE H.

6/ DIMENSION " f " DOES NOT INCLUDE DAMBAR PROTUSION ALLOWABLE

DAMBAR PROTUSION SHALL BE 0.08mm/.003" TOTAL IN EXCESS OF THE

" f " DIMENSION AT MAXIMUM MATERIAL CONDITION .

DAMBAR CANNOT BE LOCATED ON THE LOWER RADIUS OR THE FOOT.

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