74ALS620A 查看數據表（PDF） - Philips Electronics
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74ALS620A Datasheet PDF : 11 Pages
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Philips Semiconductors
Transceivers
Product specification
74ALS620A/74ALS620A-1
74ALS623A/74ALS623A-1
LOGIC DIAGRAM – 74ALS620A/74ALS620A-1
19
OEBA
1
OEAB
2
A0
18
B0
LOGIC DIAGRAM – 74ALS623A/74ALS623A-1
19
OEBA
1
OEAB
2
A0
18
B0
3
A1
17
B1
3
A1
17
B1
4
A2
16
B2
4
A2
16
B2
5
A3
15
B3
5
A3
15
B3
6
A4
14
B4
6
A4
14
B4
7
A5
13
B5
7
A5
13
B5
8
A6
12
B6
8
A6
12
B6
9
A7
VCC = Pin 20
GND = Pin 10
11
B7
FUNCTION TABLE
INPUTS
OEBA
OEAB
L
L
L
H
H
L
L
H
L
H
H = High voltage level
L = Low voltage level
X = Don’t care
Z = High impedance “off” state
SC00107
9
A7
VCC = Pin 20
GND = Pin 10
11
B7
74ALS620A
B data to A Bus
A data to B Bus
Z
B data to A Bus
A data to B Bus
OPERATING MODES
74ALS623A
B data to A Bus
A data to B Bus
Z
B data to A Bus
A data to B Bus
SC00108
1991 Feb 08
4
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