HCF4018B_01 Datasheet, PDF (6/11 Pages) STMicroelectronics – PRESETTABLE DIVIDE-BY-N COUNTER

HCF4018B
DYNAMIC ELECTRICAL CHARACTERISTICS (T_amb = 25°C, C_L = 50pF, R_L = 200KΩ, t_r = t_f = 20 ns)
Symbol
Parameter
V_DD (V)
t_PLH t_PHL Propagation Delay Time
5
10
15
t_THL t_TLH Transition Time
5
10
15
f_CL
Maximum Clock Input
Frequency
5
10
15
t_W Minimum Clock Pulse
5
Width
10
15
t_r , t_f
Clock Input Rise or Fall
Time
5
10
15
t_setup Data Setup Time Minimum
5
Clock Inhibit
10
15
t_H Data Input Hold-Time
5
10
15
PRESET⁽¹⁾ or RESET OPERATION
t_PLH, t_PHL Propagation Delay Time
5
(reset or reset to Q)
10
15
t_W Preset or Reset Pulse
5
Width
10
15
t_REM Preset or Reset Removal
5
Time
10
15
(*) Typical temperature coefficient for all V_DD value is 0.3 %/°C.
(1) At PRESET ENABLE or JAM inputs
Test Condition
Value (*)
Unit
Min.
3
7
8.5
160
70
50
Typ.
200
90
65
100
50
40
6
14
17
80
35
25
Max.
400
180
130
200
100
80
ns
ns
MHz
ns
unlimited
µs
40 20
12 6
ns
6
3
140 70
80 40
ns
60 30
275 550
125 250 ns
90 180
160 80
70 35
ns
50 25
80 40
30 15
ns
20 10
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