MC74AC157, MC74ACT157
PACKAGE DIMENSIONS
TSSOP−16
DT SUFFIX
CASE 948F−01
ISSUE O
NOTES:
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.
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.
6. TERMINAL NUMBERS ARE SHOWN FOR
REFERENCE ONLY.
7. DIMENSION A AND B ARE TO BE DETERMINED
AT DATUM PLANE −W−.
DIM
A
B
C
D
F
G
H
J
J1
K
K1
L
M
MILLIMETERS
MIN
MAX
4.90
5.10
4.30
4.50
−−−
1.20
0.05
0.15
0.50
0.75
0.65 BSC
0.18
0.28
0.09
0.20
0.09
0.16
0.19
0.30
0.19
0.25
6.40 BSC
0
_
8
_
INCHES
MIN
MAX
0.193
0.200
0.169
0.177
−−−
0.047
0.002
0.006
0.020
0.030
0.026 BSC
0.007
0.011
0.004
0.008
0.004
0.006
0.007
0.012
0.007
0.010
0.252 BSC
0
_
8
_
16X
K
REF
0.10 (0.004)
0.15 (0.006) T U
S
M
T U
S
V
S
K
16
2X
L/2
9
J1
B
−U−
L
PIN 1
IDENT.
1
8
SECTION N−N
J
N
0.25 (0.010)
0.15 (0.006) T U
S
A
−V−
N
F
DETAIL E
C
0.10 (0.004)
−T−
SEATING
PLANE
H
D
G
DETAIL E
http://onsemi.com
8
ÇÇÇ
ÉÉ
ÇÇÇ
ÉÉ
ÇÇÇ
M
K1
−W−
ONSEMI [ ON SEMICONDUCTOR ]
