MC92307 Datasheet, PDF (7/10 Pages) Motorola, Inc – 2K - Samples FFT-Processor

Package Data
The mechanical dimensions of the 160QFP package
that is used for the FFT device are shown below:
liminary ^Information _NOTES:
e 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982.
r _{2. CONTROLLING DIMENSION: MILLIMETER.}
P 3. DATUM PLANE -H- IS LOCATED AT BOTTOM OF LEAD AND IS COINCIDENT WITH THE LEAD WHERE THE LEAD EXITS THE
PLASTIC BODY AT THE BOTTOM OF THE PARTING LINE.
4. DATUMS -A-, –B- AND -D- TO BE DETERMINED AT DATUM PLANE -H-.
5. DIMENSIONS S AND V TO BE DETERMINED AT SEATING PLANE -C-.
6. DIMENSIONS A AND B DO NOT INCLUDE MOLD PROTRUSION. ALLOWABLE PROTRUSION IS 0.25 (0.010) PER SIDE. DIMEN-
SIONS A AND B DO INCLUDE MOLD MISMATCH AND ARE DETERMINED AT DATUM PLANE -H-.
7. DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.08 (0.003) TO-
TAL IN EXCESS OF THE D DIMENSION AT MAXIMUM MATERIAL CONDITION. DAMBAR CANNOT BE LOCATED ON THE LOW-
ER RADIUS OR THE FOOT.
Figure 5. Mechanical Data of the 160QFP Package
MC92307_DS - 8/12/97
MOTOROLA
7