Справочник Пользователя для Motorola MC68HC908MR16
Advance Information
MC68HC908MR16/MC68HC908MR32 — Rev. 4.0
380
Mechanical Specifications
MOTOROLA
Mechanical Specifications
23.3 64-Pin Plastic Quad Flat Pack (QFP)
Figure 23-1. MC68HC908MR32FU
32
48
49
64
1
16
17
33
DETAIL C
-B-
SEATING
PLANE
-A-
-C-
-D-
-H-
M
B
A
C
L
S
V
G
H
E
M
L
DATUM
PLANE
0.20 (0.008)
C
A-B
D
MS
S
0.05 (0.002)
A-B
0.20 (0.008)
H
A-B
D
MS
S
DETAIL A
0.01 (0.004)
K
-H-
DATUM
PLANE
U
Q
R
T
W
X
DETAIL C
B
B
P
-A-, -B-, D-
DETAIL A
J
F
BASE METAL
D
N
SECTION B-B
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. DATUM PLANE ĆHĆ 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 ĆDĆ TO BE DETERMINED AT
DATUM PLANE ĆHĆ.
5. DIMENSIONS S AND V TO BE DETERMINED AT
SEATING PLANE ĆCĆ.
6. DIMENSIONS A AND B DO NOT INCLUDE MOLD
PROTRUSION. ALLOWABLE PROTRUSION IS 0.25
(0.010) PER SIDE. DIMENSIONS A AND B DO
INCLUDE MOLD MISMATCH AND ARE DETERMINED
AT DATUM PLANE ĆHĆ.
7. DIMENSION D DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR PROTRUSION
SHALL BE 0.08 (0.003) TOTAL IN EXCESS OF THE D
DIMENSION AT MAXIMUM MATERIAL CONDITION.
DAMBAR CANNOT BE LOCATED ON THE LOWER
RADIUS OR THE FOOT.
C
0.20 (0.008)
A-B
D
A-B
0.05 (0.002)
S
S
M
H
0.20 (0.008)
A-B
D
S
S
M
C
0.20 (0.008)
A-B
D
S
S
M
0.547
0.547
0.085
0.012
0.079
0.012
Ċ
0.005
0.026
5
°
0.005
0
°
0.005
0.667
0.005
0
°
0.667
0.014
0.555
0.555
0.096
0.018
0.094
0.016
0.010
0.009
0.037
10
°
0.007
7
°
0.012
0.687
Ċ
Ċ
0.687
0.018
0.80 BSC
12.00 REF
0.40 BSC
1.6 REF
14.10
14.10
2.45
0.45
2.40
0.40
0.25
0.23
0.95
10
°
0.17
7
°
0.30
17.45
Ċ
Ċ
17.45
0.45
0.031 BSC
0.472 REF
0.016 BSC
0.063REF
13.90
13.90
2.15
0.30
2.00
0.30
Ċ
0.13
0.65
5
°
0.13
0
°
0.13
16.95
0.13
0
°
16.95
0.35
A
B
C
D
E
F
G
H
J
K
L
M
N
P
Q
R
S
T
U
V
W
X
MILLIMETERS
INCHES
MAX
DIM
MIN
MAX
MIN