74HC4024 データシートの表示（PDF） - Philips Electronics
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74HC4024 Datasheet PDF : 7 Pages
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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
ICC category: MSI
Note to HCT types
The value of additional quiescent supply current (∆ICC) for a unit load of 1 is given in the family specifications.
To determine ∆ICC 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; tr = tf = 6 ns; CL = 50 pF
SYMBOL
PARAMETER
tPHL/ tPLH
tPHL
tPHL/ tPLH
tTHL/ tTLH
propagation delay
CP to Q0
propagation delay
MR to Q0
propagation delay
Qn to Qn+1
output transition time
Tamb (°C)
TEST CONDITIONS
74HCT
+25
−40 to +125
−40 to +125
UNIT
VCC
(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
tW
clock pulse width
HIGH or LOW
16 9
20
24
tW
master reset pulse width 16 6
HIGH
20
24
trem
removal time
MR to CP
10 0
13
15
fmax
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
6
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