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MC14520BDWG

P1-P3P4-P6P7-P7
MC14518B, MC14520B
http://onsemi.com
4
SWITCHING CHARACTERISTICS (Note 6) (C
L
= 50 pF, T
A
= 25_C)
Characteristic
Symbol V
DD
All Types
Unit
Min
Typ
(Note 7)
Max
Output Rise and Fall Time
t
TLH
, t
THL
= (1.5 ns/pF) C
L
+ 25 ns
t
TLH
, t
THL
= (0.75 ns/pF) C
L
+ 12.5 ns
t
TLH
, t
THL
= (0.55 ns/pF) C
L
+ 9.5 ns
t
TLH
,
t
THL
5.0
10
15
−
−
−
100
50
40
200
100
80
ns
Propagation Delay Time
Clock to Q/Enable to Q
t
PLH
, t
PHL
= (1.7 ns/pF) C
L
+ 215 ns
t
PLH
, t
PHL
= (0.66 ns/pF) C
L
+ 97 ns
t
PLH
, t
PHL
= (0.5 ns/pF) C
L
+ 75 ns
Reset to Q
t
PHL
= (1.7 ns/pF) C
L
+ 265 ns
t
PHL
= (0.66 ns/pF) C
L
+ 117 ns
t
PHL
= (0.66 ns/pF) C
L
+ 95 ns
t
PLH
,
t
PHL
5.0
10
15
−
−
−
280
115
80
560
230
160
ns
t
PHL
5.0
10
15
−
−
−
330
130
90
650
230
170
ns
Clock Pulse Width t
w(H)
t
w(L)
5.0
10
15
200
100
70
100
50
35
−
−
−
ns
Clock Pulse Frequency f
cl
5.0
10
15
−
−
−
2.5
6.0
8.0
1.5
3.0
4.0
MHz
Clock or Enable Rise and Fall Time t
THL
, t
TLH
5.0
10
15
−
−
−
−
−
−
15
5
4
μs
Enable Pulse Width t
WH(E)
5.0
10
15
440
200
140
220
100
70
−
−
−
ns
Reset Pulse Width t
WH(R)
5.0
10
15
280
120
90
125
55
40
−
−
−
ns
Reset Removal Time t
rem
5.0
10
15
– 5
15
20
– 45
– 15
– 5
−
−
−
ns
6. The formulas given are for the typical characteristics only at 25_C.
7. Data labelled “Typ” is not to be used for design purposes but is intended as an indication of the IC’s potential performance.
Figure 1. Power Dissipation Test Circuit and Waveform
PULSE
GENERATOR
VARIABLE
WIDTH
C
L
C
L
C
L
C
L
V
DD
V
SS
V
SS
500 μF
0.01 μF
CERAMIC
20 ns
50%
10%
90%
20 ns
I
D
Q3
Q2
Q1
Q0
C
E
R
MC14518B, MC14520B
http://onsemi.com
5
Figure 2. Switching Time Test Circuit and Waveforms
PULSE
GENERATOR
C
L
C
L
C
L
C
L
V
DD
V
SS
Q3
Q2
Q1
Q0
C
E
R
20 ns
Q
t
r
t
f
V
DD
V
SS
20 ns
CLOCK
INPUT
90%
50%
10%
t
WL
t
WH
90%
50%
10%
t
PLH
t
PHL
Figure 3. Timing Diagram
181716151413121110987654321
0987654321
2
1015141312111098765432143
0987654321
CLOCK
ENABLE
RESET
Q0
Q1
Q2
Q3
Q0
Q1
Q2
Q3
MC14518B
MC14520B
MC14518B, MC14520B
http://onsemi.com
6
Figure 4. Decade Counter (MC14518B) Logic Diagram
(1/2 of Device Shown)
D
C
R
Q
Q
D
C
R
Q
Q
D
C
R
Q
Q
D
C
R
Q
Q
Q0 Q1 Q2 Q3
RESET
ENABLE
CLOCK
Figure 5. Binary Counter (MC14520B) Logic Diagram
(1/2 of Device Shown)
D
C
R
Q
Q
D
C
R
Q
Q
D
C
R
Q
Q
D
C
R
Q
Q
Q0 Q1 Q2 Q3
RESET
ENABLE
CLOCK
P1-P3P4-P6P7-P7

MC14520BDWG

Mfr. #:
Buy MC14520BDWG
Manufacturer:
ON Semiconductor
Description:
Counter Shift Registers 3-18V Dual BCD Up
Lifecycle:
New from this manufacturer.
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