mc68hc908bd48 Freescale Semiconductor, Inc, mc68hc908bd48 Datasheet - Page 284

• Manufacturer Part Number: mc68hc908bd48
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Mechanical Specifications
22.4 44-Pin Plastic Quad Flat Pack (QFP)
Data Sheet
284
SEATING
PLANE
–C–
DATUM
PLANE
–A–
C
E
–H–
H
44
34
33
1
G
0.20 (0.008)
0.20 (0.008)
0.05 (0.002) A–B
DETAIL C
–D–
Figure 22-2. 44-Pin QFP (Case #824A)
W
A
M
M
S
L
X
DETAIL A
H
C
K
A–B
A–B
M
S
S
R
T
Mechanical Specifications
D
D
M
Q
S
S
23
11
12
22
M
DETAIL C
–H–
–B–
DATUM
PLANE
0.10 (0.004)
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
2. CONTROLLING DIMENSION: MILLIMETER.
3. DATUM PLANE –H– IS LOCATED AT BOTTOM OF
4. DATUMS –A–, –B– AND –D– TO BE DETERMINED AT
5. DIMENSIONS S AND V TO BE DETERMINED AT
6. DIMENSIONS A AND B DO NOT INCLUDE MOLD
7. DIMENSION D DOES NOT INCLUDE DAMBAR
Y14.5M, 1982.
LEAD AND IS COINCIDENT WITH THE LEAD WHERE
THE LEAD EXITS THE PLASTIC BODY AT THE
BOTTOM OF THE PARTING LINE.
DATUM PLANE –H–.
SEATING PLANE –C–.
PROTRUSION. ALLOWABLE PROTRUSION IS 0.25
(0.010) PER SIDE. DIMENSIONS A AND B DO
INCLUDE MOLD MISMATCH AND ARE DETERMINED
AT DATUM PLANE –H–.
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.
0.20 (0.008)
DIM
A
B
C
D
G
H
K
M
N
Q
R
U
W
E
F
J
L
S
T
V
X
J
MC68HC908BD48
VIEW ROTATED 90
SECTION B–B
DETAIL A
12.95
12.95
MILLIMETERS
MIN
0.13
9.90
9.90
2.10
0.30
2.00
0.30
0.65
0.13
0.13
0.13
0.40
—
5
0
0
0.80 BSC
8.00 REF
1.6 REF
B
B
Freescale Semiconductor
–A–, –B–, –D–
F
D
M
10.10
10.10
13.45
13.45
MAX
2.45
0.45
2.10
0.40
0.25
0.23
0.95
10
0.17
0.30
—
—
—
7
C
A–B
0.390
0.390
0.083
0.012
0.079
0.012
0.005
0.026
0.005
0.005
0.510
0.005
0.510
0.016
MIN
—
0.031 BSC
0.315 REF
5
0
0
0.063 REF
INCHES
N
BASE METAL
S
MAX
0.398
0.398
0.096
0.018
0.083
0.016
0.010
0.009
0.037
0.007
0.012
0.530
0.530
10
D
—
—
—
7
S
—
Rev. 2.1