74HC173 Datasheet, PDF (9/10 Pages) NXP Semiconductors – Quad D-type flip-flop; positive-edge trigger; 3-state

Philips Semiconductors
Quad D-type flip-flop; positive-edge trigger; 3-state
Product specification
74HC/HCT173
AC CHARACTERISTICS FOR 74HCT
GND = 0 V; t_r = t_f = 6 ns; C_L = 50 pF
T_amb (°C)
TEST CONDITIONS
SYMBOL
PARAMETER
min.
74HCT
+25
−40 to +85
−40 to +125
UNIT
V_CC
(V)
typ. max. min. max. min. max.
WAVEFORMS
t_PHL/ t_PLH propagation delay
CP to Q_n
20 40
50
60 ns 4.5 Fig.6
t_PHL
propagation delay
MR to Q_n
20 37
46
56 ns 4.5 Fig.7
t_PZH/ t_PZL 3-state output enable time
20 35
44
53 ns 4.5 Fig.8
OE_n to Q_n
t_PHZ/ t_PLZ 3-state output disable time
19 30
38
45 ns 4.5 Fig.8
OE_n to Q_n
t_THL/ t_TLH output transition time
5 12
15
19 ns 4.5 Fig.6
t_W
clock pulse width
16 7
20
HIGH or LOW
t_W
master reset pulse
15 6
19
width; HIGH
t_rem
removal time
MR to CP
12 −2
15
t_su
set-up time
E_n to CP
22 13
28
t_su
set-up time
D_n to CP
12 7
15
t_h
hold time
E_n to CP
0 −6
0
t_h
hold time
D_n to CP
0 −3
0
f_max
maximum clock pulse
30 80
24
frequency
24
ns 4.5 Fig.6
22
ns 4.5 Fig.7
18
ns 4.5 Fig.7
33
ns 4.5 Fig.9
18
ns 4.5 Fig.9
0
ns 4.5 Fig.9
0
ns 4.5 Fig.9
20
MHz 4.5 Fig.6
December 1990
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