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MC74AC244 Datasheet, PDF (7/8 Pages) Motorola, Inc – OCTAL BUFFER/LINE DRIVER WITH 3-STATE OUTPUTS | |||
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MC74AC244, MC74ACT244
PACKAGE DIMENSIONS
0.15 (0.006) T U S
2X L/2 20
L
PIN 1
IDENT
1
0.15 (0.006) T U S
C
D
0.100 (0.004)
âTâ SEATING
PLANE
20
1
Z
D
e
b
0.13 (0.005) M
TSSOPâ20
DT SUFFIX
20 PIN PLASTIC TSSOP PACKAGE
CASE 948Eâ02
ISSUE A
20X K REF
0.10 (0.004) M T U S V S
11
B
âUâ
10
A
âVâ
GH
K
J J1 ÃÃÃÃÃÃK1ÃÃÃ
SECTION NâN
N
0.25 (0.010)
M
N
F
DETAIL E
DETAIL E
NOTES:
Ä
Ä1. DIMENSIONING AND TOLERANCING PER
ANSI Y14.5M, 1982.
Ä
Ä2. CONTROLLING DIMENSION: MILLIMETER.
Ä
Ä3. 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.
Ä
Ä4. DIMENSION B DOES NOT INCLUDE
INTERLEAD FLASH OR PROTRUSION.
INTERLEAD FLASH OR PROTRUSION SHALL
NOT EXCEED 0.25 (0.010) PER SIDE.
Ä
Ä5. 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.
Ä
Ä6. TERMINAL NUMBERS ARE SHOWN FOR
REFERENCE ONLY.
Ä
Ä7. DIMENSION A AND B ARE TO BE
DETERMINED AT DATUM PLANE -W-.
âWâ
MILLIMETERS
INCHES
DIM MIN MAX MIN MAX
A 6.40 6.60 0.252 0.260
B 4.30 4.50 0.169 0.177
C --- 1.20 --- 0.047
D 0.05 0.15 0.002 0.006
F 0.50 0.75 0.020 0.030
G
0.65 BSC
0.026 BSC
H 0.27 0.37 0.011 0.015
J 0.09 0.20 0.004 0.008
J1 0.09 0.16 0.004 0.006
K 0.19 0.30 0.007 0.012
K1 0.19 0.25 0.007 0.010
L
6.40 BSC
0.252 BSC
M 0_ 8_ 0_ 8_
EIAJâ20
M SUFFIX
20 PIN PLASTIC EIAJ PACKAGE
CASE 967â01
ISSUE O
11
E HE
10
LE
Q1
M_
L
DETAIL P
VIEW P
A
c
A1
0.10 (0.004)
NOTES:
Ä
Ä1. DIMENSIONING AND TOLERANCING PER
ANSI Y14.5M, 1982.
Ä
Ä2. CONTROLLING DIMENSION: MILLIMETER.
Ä
Ä3. 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.
Ä
Ä4. TERMINAL NUMBERS ARE SHOWN FOR
REFERENCE ONLY.
Ä
Ä5. 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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