74ABT374AN Просмотр технического описания (PDF) - Philips Electronics
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74ABT374AN Datasheet PDF : 6 Pages
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Philips Semiconductors
Octal D-type flip-flop; positive-edge trigger
(3-State)
Product specification
74ABT374A
LOGIC SYMBOL
LOGIC SYMBOL (IEEE/IEC)
3 4 7 8 13 14 17 18
D0 D1 D2 D3 D4 D5 D6 D7
11
CP
1
OE
Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7
2 5 6 9 12 15 16 19
SA00111
FUNCTION TABLE
INPUTS
OE
CP
Dn
INTERNAL
REGISTER
OUTPUTS
Q0 – Q7
OPERATING MODE
L
↑
l
L
L
↑
h
H
L
Latch and read register
H
L
↑
X
NC
NC
Hold
H
↑
X
NC
H
↑
Dn
Dn
Z
Disable outputs
Z
H=
h=
L=
l=
NC=
X=
Z=
↑=
↑=
High voltage level
High voltage level one set-up time prior to the Low-to-High clock transition
Low voltage level
Low voltage level one set-up time prior to the Low-to-High clock transition
No change
Don’t care
High impedance “off” state
Low-to-High clock transition
not a Low-to-High clock transition
LOGIC DIAGRAM
D0
D1
D2
D3
D4
3
4
7
8
13
1
EN
11
C1
3
1D
4
7
8
13
14
17
18
D5
14
D6
17
2
5
6
9
12
15
16
19
SA00112
D7
18
D
CP Q
D
CP Q
D
CP Q
D
CP Q
D
CP Q
D
CP Q
D
CP Q
D
CP Q
11
CP
1
OE
2
5
6
9
12
15
16
19
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
SA00113
1995 Sep 06
2
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