MC14518 ONSEMI [ON Semiconductor], MC14518 Datasheet - Page 4

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MC14518

Manufacturer Part Number
MC14518
Description
Dual Up Counters
Manufacturer
ONSEMI [ON Semiconductor]
Datasheet

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Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î
Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î
7. The formulas given are for the typical characteristics only at 25 _ C.
8. Data labelled “Typ” is not to be used for design purposes but is intended as an indication of the IC’s potential performance.
SWITCHING CHARACTERISTICS
Output Rise and Fall Time
Propagation Delay Time
Clock Pulse Width
Clock Pulse Frequency
Clock or Enable Rise and Fall Time
Enable Pulse Width
Reset Pulse Width
Reset Removal Time
t
t
t
Clock to Q/Enable to Q
Reset to Q
TLH
TLH
TLH
t
t
t
t
t
t
PLH
PLH
PLH
PHL
PHL
PHL
, t
, t
, t
, t
, t
, t
THL
THL
THL
= (1.7 ns/pF) C
= (0.66 ns/pF) C
= (0.66 ns/pF) C
PHL
PHL
PHL
= (1.5 ns/pF) C
= (0.75 ns/pF) C
= (0.55 ns/pF) C
= (1.7 ns/pF) C
= (0.66 ns/pF) C
= (0.5 ns/pF) C
Characteristic
L
L
L
+ 265 ns
+ 117 ns
+ 95 ns
L
L
L
+ 25 ns
L
L
+ 12.5 ns
+ 9.5 ns
L
+ 215 ns
+ 75 ns
+ 97 ns
Figure 1. Power Dissipation Test Circuit and Waveform
GENERATOR
(7.)
20 ns
PULSE
(C
L
500 F
= 50 pF, T
50%
VARIABLE
WIDTH
http://onsemi.com
A
= 25 _ C)
t
MC14518B
Symbol
THL
R
t
C
E
t
t
t
WH(E)
WH(R)
t
t
t
t
t
90%
t
TLH
PLH
w(H)
PHL
PHL
w(L)
THL
rem
f
I
, t
cl
D
Q0
Q1
Q2
Q3
V
TLH
,
,
DD
4
V
SS
10%
20 ns
C
V
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
L
10
15
10
15
10
15
10
15
10
15
10
15
10
15
10
15
10
15
DD
0.01 F
CERAMIC
V
SS
C
L
C
Min
L
200
100
440
200
140
280
120
– 5
70
90
15
20
C
L
All Types
Typ
– 45
– 15
100
280
115
330
130
100
220
100
125
2.5
6.0
8.0
– 5
50
40
80
90
50
35
70
55
40
(8.)
Max
200
100
560
230
160
650
230
170
1.5
3.0
4.0
80
15
5
4
Unit
MHz
ns
ns
ns
ns
ns
ns
ns
s

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