74HC74
PACKAGE DIMENSIONS
TSSOP−14
CASE 948G−01
ISSUE B
NOTES:
1. DIMENSIONING AND TOLERANCING PER
14X K REF
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.
M
S
S
V
0.10 (0.004)
T
U
S
0.15 (0.006) T
U
N
0.25 (0.010)
14
8
2X L/2
M
B
L
N
−U−
PIN 1
IDENT.
F
7
1
6. TERMINAL NUMBERS ARE SHOWN FOR
REFERENCE ONLY.
DETAIL E
7. DIMENSION A AND B ARE TO BE
DETERMINED AT DATUM PLANE −W−.
S
K
0.15 (0.006) T
U
A
−V−
MILLIMETERS
DIM MIN MAX
INCHES
MIN MAX
K1
A
B
C
D
F
G
H
J
4.90
4.30
−−−
0.05
0.50
5.10 0.193 0.200
4.50 0.169 0.177
J J1
1.20
−−− 0.047
0.15 0.002 0.006
0.75 0.020 0.030
SECTION N−N
0.65 BSC
0.026 BSC
0.60 0.020 0.024
0.20 0.004 0.008
0.16 0.004 0.006
0.30 0.007 0.012
0.25 0.007 0.010
0.50
0.09
0.09
0.19
J1
K
−W−
C
K1 0.19
L
M
6.40 BSC
0.252 BSC
0.10 (0.004)
0
8
0
8
_
_
_
_
SEATING
PLANE
−T−
H
G
DETAIL E
D
SOLDERING FOOTPRINT*
7.06
1
0.65
PITCH
01.34X6
14X
1.26
DIMENSIONS: MILLIMETERS
*For additional information on our Pb−Free strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
http://onsemi.com
7
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