74HC4024 Datasheet, PDF (6/7 Pages) NXP Semiconductors – 7-stage binary ripple counter

Philips Semiconductors
7-stage binary ripple counter
Product specification
74HC/HCT4024
DC CHARACTERISTICS FOR 74HCT
For the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: standard
I_CC category: MSI
Note to HCT types
The value of additional quiescent supply current (∆I_CC) for a unit load of 1 is given in the family specifications.
To determine ∆I_CC per input, multiply this value by the unit load coefficient shown in the table below.
INPUT
CP
MR
UNIT LOAD COEFFICIENT
0.75
0.85
AC CHARACTERISTICS FOR 74HCT
GND = 0 V; t_r = t_f = 6 ns; C_L = 50 pF
SYMBOL
PARAMETER
t_PHL/ t_PLH
t_PHL
t_PHL/ t_PLH
t_THL/ t_TLH
propagation delay
CP to Q₀
propagation delay
MR to Q₀
propagation delay
Q_n to Q_n+1
output transition time
T_amb (°C)
TEST CONDITIONS
74HCT
+25
−40 to +125
−40 to +125
UNIT
V_CC
(V)
WAVEFORMS
min. typ. max. min. max. min. max.
17 35
44
53 ns 4.5 Fig.6
21 40
50
60 ns 4.5 Fig.6
9 16
20
24 ns 4.5 Fig.6
7 15
19
22 ns 4.5 Fig.6
t_W
clock pulse width
HIGH or LOW
16 9
20
24
t_W
master reset pulse width 16 6
HIGH
20
24
t_rem
removal time
MR to CP
10 0
13
15
f_max
maximum clock pulse
30 64
24
20
frequency
ns 4.5 Fig.6
ns 4.5 Fig.6
ns 4.5 Fig.6
MHz 4.5 Fig.6
December 1990
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