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74F574 数据表(PDF) 4 Page - NXP Semiconductors

部件名 74F574
功能描述  Octal transparent latch 3-State
Download  14 Pages
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制造商  PHILIPS [NXP Semiconductors]
网页  http://www.nxp.com
标志 PHILIPS - NXP Semiconductors

74F574 数据表(HTML) 4 Page - NXP Semiconductors

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Philips Semiconductors
Product specification
74F573/74F574
Latch/flip-flop
1989 Oct 16
4
LOGIC DIAGRAM – 74F573
D0
D1
D2
D3
D4
D5
D6
D7
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
E
OE
23
4
5
6
789
12
13
14
15
16
17
18
19
1
11
E
D
Q
E
D
Q
EQ
D
E
D
Q
E
D
Q
E
D
Q
E
D
Q
E
D
Q
VCC=Pin 20
GND=Pin 10
SF01079
FUNCTION TABLE – 74F573
INPUTS
INTERNAL
OUTPUTS
OPERATING MODES
OE
E
Dn
REGISTER
Q0 – Q7
OPERATING MODES
L
L
H
H
L
H
L
H
L
H
Load and read register
L
L
l
h
L
H
L
H
Latch and read register
L
L
X
NC
NC
Hold
H
H
L
H
X
Dn
NC
Dn
Z
Z
Disable outputs
H = High voltage level
h = High voltage level one setup time prior to the High-to-Low E transition
L = Low voltage level
l
= Low voltage level one setup time prior to the High-to-Low E transition
NC= No change
X = Don’t care
Z = High impedance “off” state
↓ = High-to-Low E transition
LOGIC DIAGRAM – 74F574
D0
D1
D2
D3
D4
D5
D6
D7
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
CP
OE
23
4
5
6
789
12
13
14
15
16
17
18
19
1
11
CP
D
Q
CP
D
Q
CP
Q
D
CP
D
Q
CP
D
Q
CP
D
Q
CP
D
Q
CP
D
Q
VCC=Pin 20
GND=Pin 10
SF01080


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