參數(shù)資料
型號(hào): 74F1240N
英文描述: Dual 4-Bit Inverting Buffer/Driver
中文描述: 雙4位反向緩沖器/驅(qū)動(dòng)器
文件頁(yè)數(shù): 3/10頁(yè)
文件大?。?/td> 116K
代理商: 74F1240N
Philips Semiconductors
Product specification
74F1240
Octal inverter buffer (3-State)
3
PIN CONFIGURATION
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
SF00320
OEa
Ia0
Yb0
Ia1
Yb1
Ia2
Yb2
Ia3
Yb3
GND
V
CC
OEb
Ya0
Ib0
Ya1
Ib1
Ya2
Ib2
Ya3
Ib3
LOGIC SYMBOL
V
= Pin 20
GND = Pin 10
SF00321
1
19
OEa
OEb
2
4
6
8
17
15
13
11
18
16
14
12
3
5
7
9
Ia0
Ia1
Ia2
Ia3
Ib0
Ib1
Ib2 Ib3
Ya0 Ya1 Ya2 Ya3 Yb0 Yb1 Yb2 Yb3
IEC/IEEE SYMBOL
2
1
EN1
1
2
SF01367
19
4
6
8
17
15
13
11
EN2
9
7
5
3
12
14
16
18
LOGIC DIAGRAM
Ia0
2
18
Ya0
Ia1
4
16
Ya1
Ia2
6
14
Ya2
Ia3
8
12
Ya3
OEa
1
Ib0
17
3
Yb0
Ib1
15
5
Yb1
Ib2
13
7
Yb2
Ib3
11
9
Yb3
OEb
19
SF01369
FUNCTION TABLE
INPUTS
OUTPUTS
OEa
Ia
OEb
Ib
Ya
Yb
L
L
L
L
H
H
L
H
L
H
L
L
H
X
H
X
Z
Z
H =
L
X =
Z
High voltage level
Low voltage level
Don’t care
High impedance “off” state
=
=
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