參數(shù)資料
型號(hào): MC74ACT244DWR2
廠商: ON SEMICONDUCTOR
元件分類: 通用總線功能
英文描述: Octal Buffer/Line Driver with 3-State Outputs
中文描述: ACT SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDSO20
封裝: SOIC-20
文件頁(yè)數(shù): 7/8頁(yè)
文件大?。?/td> 96K
代理商: MC74ACT244DWR2
MC74AC244, MC74ACT244
http://onsemi.com
7
PACKAGE DIMENSIONS
TSSOP–20
DT SUFFIX
20 PIN PLASTIC TSSOP PACKAGE
CASE 948E–02
ISSUE A
DIM
A
B
C
D
F
G
H
J
J1
K
K1
L
M
MIN
6.40
MAX
6.60
4.50
1.20
0.15
0.75
MIN
0.252
MAX
0.260
0.177
0.047
0.006
0.030
INCHES
MILLIMETERS
4.30
---
0.169
---
0.05
0.50
0.65 BSC
0.27
0.09
0.09
0.19
0.19
6.40 BSC
0
0.002
0.020
0.026 BSC
0.011
0.004
0.004
0.007
0.007
0.252 BSC
0
0.37
0.20
0.16
0.30
0.25
0.015
0.008
0.006
0.012
0.010
8
8
NOTES:
1.
DIMENSIONING AND TOLERANCING PER
ANSI Y14.5M, 1982.
CONTROLLING DIMENSION: MILLIMETER.
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.
DIMENSION B DOES NOT INCLUDE
INTERLEAD FLASH OR PROTRUSION.
INTERLEAD FLASH OR PROTRUSION SHALL
NOT EXCEED 0.25 (0.010) PER SIDE.
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.
TERMINAL NUMBERS ARE SHOWN FOR
REFERENCE ONLY.
DIMENSION A AND B ARE TO BE
DETERMINED AT DATUM PLANE -W-.
2.
3.
4.
5.
6.
7.
ííí
ííí
ííí
SECTION N–N
1
10
11
20
PIN 1
IDENT
A
B
–T–
0.100 (0.004)
C
D
G
H
K
K1
J J1
N
N
M
F
–W–
SEATING
PLANE
–V–
–U–
S
U
M
0.10 (0.004)
V
S
T
20X REF
L
L/2
2X
S
U
0.15 (0.006) T
DETAIL E
0.25 (0.010)
DETAIL E
S
U
0.15 (0.006) T
EIAJ–20
M SUFFIX
20 PIN PLASTIC EIAJ PACKAGE
CASE 967–01
ISSUE O
DIM
A
MIN
---
0.05
0.35
0.18
12.35
5.10
MAX
2.05
0.20
0.50
0.27
12.80
5.45
MIN
---
0.002
0.014
0.007
0.486
0.201
0.050 BSC
0.291
0.020
0.043
0
MAX
0.081
0.008
0.020
0.011
0.504
0.215
INCHES
MILLIMETERS
1.27 BSC
7.40
0.50
1.10
0
0.70
---
8.20
0.85
1.50
10
0.323
0.033
0.059
10
0.90
0.81
0.028
---
0.035
0.032
A1
b
c
D
E
e
HE
L
Q1
Z
LE
M
NOTES:
1.
DIMENSIONING AND TOLERANCING PER
ANSI Y14.5M, 1982.
CONTROLLING DIMENSION: MILLIMETER.
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.
TERMINAL NUMBERS ARE SHOWN FOR
REFERENCE ONLY.
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).
2.
3.
4.
5.
HE
A1
LE
Q1
c
A
Z
D
E
20
1
10
11
b
M
0.13 (0.005)
e
0.10 (0.004)
VIEW P
DETAIL P
M
L
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