74HC574 Datasheet, PDF (5/7 Pages) NXP Semiconductors – Octal D-type flip-flop; positive edge-trigger; 3-state

Philips Semiconductors
Octal D-type flip-flop; positive edge-trigger;
3-state
Product specification
74HC/HCT574
DC CHARACTERISTICS FOR 74HC
For the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: bus driver
I_CC category: MSI
AC CHARACTERISTICS FOR 74HC
GND = 0 V; t_r = t_f = 6 ns; C_L = 50 pF
T_amb (°C)
TEST CONDITIONS
SYMBOL PARAMETER
min.
+25
typ.
max.
74HC
−40 to +85
min. max.
−40 to +125
min. max.
UNIT
V_CC
(V)
WAVEFORMS
t_PHL/ t_PLH propagation delay
CP to Q_n
47 150
190
225 ns 2.0 Fig.6
17 30
35
45
4.5
14 26
33
38
6.0
t_PZH/ t_PZL 3-state output enable
44 140
175
210 ns 2.0 Fig.7
time OE to Q_n
16 28
35
42
4.5
13 24
30
36
6.0
t_PHZ/ t_PLZ 3-state output disable
39 125
155
190 ns 2.0 Fig.7
time OE to Q_n
14 25
31
38
4.5
11 21
26
32
6.0
t_THL/ t_TLH output transition time
14 60
75
90 ns 2.0 Fig.6
5 12
15
18
4.5
4 10
13
15
6.0
t_W
clock pulse width
80 14
HIGH or LOW
16 5
14 4
100
120
20
24
17
20
ns 2.0 Fig.6
4.5
6.0
t_su
set-up time
D_n to CP
60 6
12 2
10 2
75
90
15
18
13
15
ns 2.0 Fig.8
4.5
6.0
t_h
hold time
D_n to CP
50
5
5
50
5
5
50
5
5
f_max
maximum clock pulse 6.0 37
4.8
4.0
frequency
30 112
24
20
35 133
28
24
ns 2.0 Fig.8
4.5
6.0
MHz 2.0 Fig.6
4.5
6.0
December 1990
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