MC74LCX244DWR2 查看數據表（PDF） - ON Semiconductor
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MC74LCX244DWR2 Datasheet PDF : 12 Pages
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20
1
Z
D
e
b
0.13 (0.005) M
MC74LCX244
11
E HE
10
A
A1
0.10 (0.004)
PACKAGE DIMENSIONS
SO EIAJ–20
M SUFFIX
CASE 967–01
ISSUE O
LE
M_
L
DETAIL P
VIEW P
Q1
c
NOTES:
ąă1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
ąă2. CONTROLLING DIMENSION: MILLIMETER.
ąă3. DIMENSIONS D AND E DO NOT INCLUDE
MOLD FLASH OR PROTRUSIONS AND ARE
MEASURED AT THE PARTING LINE. MOLD FLASH
OR PROTRUSIONS SHALL NOT EXCEED 0.15
(0.006) PER SIDE.
ąă4. TERMINAL NUMBERS ARE SHOWN FOR
REFERENCE ONLY.
ąă5. THE LEAD WIDTH DIMENSION (b) DOES NOT
INCLUDE DAMBAR PROTRUSION. ALLOWABLE
DAMBAR PROTRUSION SHALL BE 0.08 (0.003)
TOTAL IN EXCESS OF THE LEAD WIDTH
DIMENSION AT MAXIMUM MATERIAL CONDITION.
DAMBAR CANNOT BE LOCATED ON THE LOWER
RADIUS OR THE FOOT. MINIMUM SPACE
BETWEEN PROTRUSIONS AND ADJACENT LEAD
TO BE 0.46 ( 0.018).
MILLIMETERS
INCHES
DIM MIN MAX MIN MAX
A
--- 2.05 --- 0.081
A1 0.05 0.20 0.002 0.008
b 0.35 0.50 0.014 0.020
c 0.18 0.27 0.007 0.011
D 12.35 12.80 0.486 0.504
E 5.10 5.45 0.201 0.215
e
1.27 BSC
0.050 BSC
HE 7.40 8.20 0.291 0.323
L 0.50 0.85 0.020 0.033
LE 1.10 1.50 0.043 0.059
M
0 _ 10 _ 0 _ 10 _
Q1 0.70 0.90 0.028 0.035
Z
--- 0.81 --- 0.032
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