參數(shù)資料
型號: 74LV244PWDH
廠商: NXP SEMICONDUCTORS
元件分類: 通用總線功能
英文描述: Octal buffer/line driver 3-State
中文描述: LV/LV-A/LVX/H SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDSO20
封裝: PLASTIC, SOT-360, TSSOP-20
文件頁數(shù): 3/12頁
文件大小: 114K
代理商: 74LV244PWDH
Philips Semiconductors
Product specification
74LV244
Octal buffer/line driver (3-State)
1998 May 20
3
PIN DESCRIPTION
PIN
NUMBER
SYMBOL
FUNCTION
1
1OE
Output enable input (active LOW)
2, 4, 6, 8
1A
0
to 1A
3
Data inputs
3, 5, 7, 9
2Y
0
to 2Y
3
Bus outputs
10
GND
Ground (0 V)
17, 15, 13, 11
2A
0
to 2A
3
Data inputs
18, 16, 14, 12
1Y
0
to 1Y
3
Bus outputs
19
2OE
Output enable input (active LOW)
20
V
CC
Positive supply voltage
LOGIC SYMBOL (IEEE/IEC)
SV00666
18
16
14
12
2
4
6
8
EN
1
9
7
5
3
11
13
15
17
EN
19
FUNCTIONAL DIAGRAM
SV00622
2Y
0
3
2Y
1
5
2Y
2
7
2Y
3
9
2A
0
17
2A
1
15
2A
2
13
2A
3
11
2OE
19
1Y
0
18
1Y
1
16
1Y
2
14
1Y
3
12
1A
0
2
1A
1
4
1A
2
6
1A
3
8
1OE
1
FUNCTION TABLE
INPUTS
OUTPUT
nOE
nA
n
L
nY
n
L
L
L
H
H
H
X
Z
NOTES:
H =
L
=
X =
Z
=
HIGH voltage level
LOW voltage level
don’t care
high impedance OFF-state
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