MC74VHC240
PACKAGE DIMENSIONS
TSSOP−20
CASE 948E−02
ISSUE C
NOTES:
20X K REF
1. DIMENSIONING AND TOLERANCING PER
K
K1
ANSI Y14.5M, 1982.
2. CONTROLLING DIMENSION:
MILLIMETER.
M
S
S
V
0.10 (0.004)
T
U
S
T U
0.15 (0.006)
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.
J J1
20
11
2X L/2
B
SECTION N−N
L
−U−
PIN 1
0.25 (0.010)
IDENT
N
1
10
M
6. TERMINAL NUMBERS ARE SHOWN FOR
REFERENCE ONLY.
7. DIMENSION A AND B ARE TO BE
DETERMINED AT DATUM PLANE −W−.
S
0.15 (0.006)
T U
N
A
−V−
MILLIMETERS
INCHES
MIN
F
DIM MIN
MAX
6.60
4.50
1.20
0.15
0.75
MAX
0.260
0.177
0.047
0.006
0.030
A
B
6.40
4.30
---
0.252
0.169
---
DETAIL E
C
D
0.05
0.50
0.002
0.020
−W−
C
F
G
H
0.65 BSC
0.026 BSC
0.27
0.09
0.09
0.19
0.19
0.37
0.20
0.16
0.30
0.25
0.011
0.004
0.004
0.007
0.007
0.015
0.008
0.006
0.012
0.010
G
D
J
H
J1
K
DETAIL E
0.100 (0.004)
−T− SEATING
K1
L
6.40 BSC
0.252 BSC
0
SOLDERING FOOTPRINT
PLANE
M
0
8
8
_
_
_
_
7.06
1
0.65
PITCH
01.36X6
16X
1.26
DIMENSIONS: MILLIMETERS
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