HCC4518B Datasheet, PDF (6/14 Pages) STMicroelectronics – DUAL UP-COUNTERS

HCC/HCF4518B/4520B
DYNAMIC ELECTRICAL CHARACTERISTICS (T_amb = 25°C, C_L = 50pF, R_L = 200kΩ,
typical temperature coefficient for all V_DD = 0.3%/°C values, all input rise and fall time = 20ns)
Symbol
Parameter
t_PLH,
t_PHL
Propagation Delay Time
(clock or enable to output)
Test Conditions
Value
V_DD (V) Min. Typ. Max.
5
280 560
10
115 230
Unit
ns
15
80 160
t_PLH,
t_PHL,
Propagation Delay Time
(reset to output)
5
330 650
10
130 225
ns
15
90 170
t_TLH ,t_THL Transition Time
5
100 200
10
50 100
ns
15
40 80
t_W
Clock Pulse Width
5
200 100
10 100 50
ns
15
70 35
t_W
Reset Pulse Width
5
250 125
10 110 55
ns
15
80 40
t_W
Enable Pulse Width
5
400 200
10 200 100
ns
15 140 70
t_r,
Clock or Enable Rise and Fall
t_f
Time
5
15
10
15
µs
15
5
f_max
Maximum Clock Frequency
5
1.5
3
10
3
6
15
4
8
MHz
t_r,
Clock Input Rise or Fall Time
t_f
5
15
10
5
µs
15
5
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