MC74VHCT157A
PACKAGE DIMENSIONS
SOIC−16
D SUFFIX
CASE 751B−05
ISSUE J
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
−A−
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSIONS A AND B DO NOT INCLUDE
MOLD PROTRUSION.
4. MAXIMUM MOLD PROTRUSION 0.15 (0.006)
PER SIDE.
5. DIMENSION D DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.127 (0.005) TOTAL
IN EXCESS OF THE D DIMENSION AT
MAXIMUM MATERIAL CONDITION.
16
9
8
−B−
P 8 PL
M
S
B
0.25 (0.010)
1
MILLIMETERS
INCHES
MIN
G
DIM MIN
MAX
10.00
4.00
1.75
0.49
1.25
MAX
0.393
0.157
0.068
0.019
0.049
A
B
C
D
F
9.80
3.80
1.35
0.35
0.40
0.386
0.150
0.054
0.014
0.016
F
R X 45
K
_
G
J
1.27 BSC
0.050 BSC
C
0.19
0.10
0
0.25
0.25
7
0.008
0.004
0
0.009
0.009
7
−T−
SEATING
PLANE
K
M
P
R
J
M
_
_
_
_
5.80
0.25
6.20
0.50
0.229
0.010
0.244
0.019
D
16 PL
M
S
S
0.25 (0.010)
T
B
A
TSSOP−16
DT SUFFIX
CASE 948F−01
ISSUE A
NOTES:
16X KREF
1. DIMENSIONING AND TOLERANCING PER
ANSI Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSION A DOES NOT INCLUDE MOLD
FLASH. PROTRUSIONS OR GATE BURRS.
MOLD FLASH OR GATE BURRS SHALL NOT
EXCEED 0.15 (0.006) PER SIDE.
M
S
S
V
0.10 (0.004)
T
U
S
U
0.15 (0.006) T
K
K1
4. DIMENSION B DOES NOT INCLUDE
INTERLEAD FLASH OR PROTRUSION.
INTERLEAD FLASH OR PROTRUSION SHALL
NOT EXCEED 0.25 (0.010) PER SIDE.
5. DIMENSION K DOES NOT INCLUDE
DAMBAR PROTRUSION. ALLOWABLE
DAMBAR PROTRUSION SHALL BE 0.08
(0.003) TOTAL IN EXCESS OF THE K
DIMENSION AT MAXIMUM MATERIAL
CONDITION.
16
9
2X L/2
J1
B
−U−
SECTION N−N
L
J
PIN 1
IDENT.
6. TERMINAL NUMBERS ARE SHOWN FOR
REFERENCE ONLY.
7. DIMENSION A AND B ARE TO BE
DETERMINED AT DATUM PLANE −W−.
8
1
N
0.25 (0.010)
S
0.15 (0.006) T
U
A
MILLIMETERS
DIM MIN MAX
INCHES
MIN MAX
M
−V−
A
B
4.90
4.30
−−−
0.05
0.50
5.10 0.193 0.200
4.50 0.169 0.177
N
C
1.20
−−− 0.047
F
D
F
0.15 0.002 0.006
0.75 0.020 0.030
G
H
J
J1
K
K1
L
0.65 BSC
0.026 BSC
DETAIL E
0.18
0.09
0.09
0.19
0.19
0.28 0.007 0.011
0.20 0.004 0.008
0.16 0.004 0.006
0.30 0.007 0.012
0.25 0.007 0.010
−W−
C
6.40 BSC
0.252 BSC
M
0
8
0
8
_
_
_
_
0.10 (0.004)
H
DETAIL E
SEATING
−T−
D
PLANE
G
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