參數(shù)資料
型號: SN74LS244N
廠商: MOTOROLA INC
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: LS SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDIP20
封裝: PLASTIC, DIP-20
文件頁數(shù): 2/8頁
文件大小: 122K
代理商: SN74LS244N
SN74LS240 SN74LS244
http://onsemi.com
2
LOGIC AND CONNECTION DIAGRAMS DIP
(TOP VIEW)
18
17
16
15
14
13
1
2
3
4
5
6
7
20
19
8
V
CC
1G
2G
1Y1
2A4 1Y2
1Y3
2A3
2A2
1A1
2Y4 1A2 2Y3
1A3 2Y2 1A4
9
10
2Y1 GND
12
11
1Y4 2A1
18
17
16
15
14
13
1
2
3
4
5
6
7
20
19
8
V
CC
1G
2G
1Y1
2A4 1Y2
1Y3
2A3
2A2
1A1
2Y4 1A2 2Y3
1A3 2Y2 1A4
9
10
2Y1 GND
12
11
1Y4 2A1
SN74LS240
SN74LS244
TRUTH TABLES
SN74LS240
INPUTS
OUTPUT
1G, 2G
D
L
L
H
L
H
X
H
L
(Z)
SN74LS244
INPUTS
OUTPUT
1G, 2G
D
L
L
H
L
H
X
L
H
(Z)
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = HIGH Impedance
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