HCF4518 STMicroelectronics, HCF4518 Datasheet - Page 6

• Manufacturer Part Number: HCF4518
• Description: DUAL UP-COUNTERS
• Manufacturer: STMicroelectronics

DYNAMIC ELECTRICAL CHARACTERISTICS (T
typical temperature coefficient for all V
HCC/HCF4518B/4520B
6/14
t
Symbol
TLH
t
t
t
t
f
PLH
PLH
PHL
PHL
max
t
t
t
t
t
W
W
W
t
t
r
r
,t
f
f
,
,
THL
,
,
,
Propagation Delay Time
(clock or enable to output)
Propagation Delay Time
(reset to output)
Transition Time
Clock Pulse Width
Reset Pulse Width
Enable Pulse Width
Clock or Enable Rise and Fall
Time
Maximum Clock Frequency
Clock Input Rise or Fall Time
Parameter
DD
= 0.3%/ C values, all input rise and fall time = 20ns)
Test Conditions
amb
= 25 C, C
L
= 50pF, R
V
DD
10
15
10
15
10
15
10
15
10
15
10
15
5
10
15
10
15
5
10
15
5
5
5
5
5
5
5
(V) Min.
L
= 200k ,
200
100
250
110
400
200
140
1.5
70
80
3
4
Value
Typ.
280
115
330
130
100
100
125
200
100
80
90
50
40
50
35
55
40
70
3
6
8
Max.
560
230
160
650
225
170
200
100
80
15
15
15
5
5
5
Unit
MHz
ns
ns
ns
ns
ns
ns
s
s