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HCT574 Datasheet(PDF) 5 Page - NXP Semiconductors

Part # HCT574
Description  Octal D-type flip-flop; positive edge-trigger; 3-state
PDF  7 Pages
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Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

HCT574 Datasheet(HTML) 5 Page - NXP Semiconductors

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December 1990
5
Philips Semiconductors
Product specification
Octal D-type flip-flop; positive edge-trigger;
3-state
74HC/HCT574
DC CHARACTERISTICS FOR 74HC
For the DC characteristics see
“74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: bus driver
ICC category: MSI
AC CHARACTERISTICS FOR 74HC
GND = 0 V; tr =tf = 6 ns; CL = 50 pF
SYMBOL
PARAMETER
Tamb (°C)
UNIT
TEST CONDITIONS
74HC
VCC
(V)
WAVEFORMS
+25
−40 to +85
−40 to +125
min.
typ.
max.
min.
max.
min.
max.
tPHL/ tPLH
propagation delay
CP to Qn
47
17
14
150
30
26
190
35
33
225
45
38
ns
2.0
4.5
6.0
Fig.6
tPZH/ tPZL
3-state output enable
time OE to Qn
44
16
13
140
28
24
175
35
30
210
42
36
ns
2.0
4.5
6.0
Fig.7
tPHZ/ tPLZ
3-state output disable
time OE to Qn
39
14
11
125
25
21
155
31
26
190
38
32
ns
2.0
4.5
6.0
Fig.7
tTHL/ tTLH
output transition time
14
5
4
60
12
10
75
15
13
90
18
15
ns
2.0
4.5
6.0
Fig.6
tW
clock pulse width
HIGH or LOW
80
16
14
14
5
4
100
20
17
120
24
20
ns
2.0
4.5
6.0
Fig.6
tsu
set-up time
Dn to CP
60
12
10
6
2
2
75
15
13
90
18
15
ns
2.0
4.5
6.0
Fig.8
th
hold time
Dn to CP
5
5
5
0
0
0
5
5
5
5
5
5
ns
2.0
4.5
6.0
Fig.8
fmax
maximum clock pulse
frequency
6.0
30
35
37
112
133
4.8
24
28
4.0
20
24
MHz
2.0
4.5
6.0
Fig.6



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