MC14520BDW Просмотр технического описания (PDF) - ON Semiconductor
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MC14520BDW Datasheet PDF : 9 Pages
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MC14518B, MC14520B
ÎÎSÎÎWIÎÎTCHÎÎINGÎÎCHÎÎARÎÎACÎÎTERÎÎISTÎÎICSÎÎ(6.)ÎÎ(CLÎÎ= 50ÎÎpF,ÎÎTA=ÎÎ25_ÎÎC) ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎAÎÎll TyÎÎpesÎÎÎÎÎÎÎÎÎÎÎÎ
Characteristic
Output Rise and Fall Time
tTLH, tTHL = (1.5 ns/pF) CL + 25 ns
tTLH, tTHL = (0.75 ns/pF) CL + 12.5 ns
tTLH, tTHL = (0.55 ns/pF) CL + 9.5 ns
Propagation Delay Time
Clock to Q/Enable to Q
tPLH, tPHL = (1.7 ns/pF) CL + 215 ns
tPLH, tPHL = (0.66 ns/pF) CL + 97 ns
tPLH, tPHL = (0.5 ns/pF) CL + 75 ns
Reset to Q
tPHL = (1.7 ns/pF) CL + 265 ns
tPHL = (0.66 ns/pF) CL + 117 ns
tPHL = (0.66 ns/pF) CL + 95 ns
Clock Pulse Width
Symbol
tTLH,
tTHL
tPLH,
tPHL
tPHL
tw(H)
tw(L)
VDD
5.0
10
15
5.0
10
15
5.0
10
15
5.0
10
15
Min
Typ (7.)
Max
Unit
ns
—
100
200
—
50
100
—
40
80
ns
—
280
560
—
115
230
—
80
160
ns
—
330
650
—
130
230
—
90
170
200
100
100
50
70
35
—
ns
—
—
Clock Pulse Frequency
fcl
5.0
—
2.5
1.5
MHz
10
—
6.0
3.0
15
—
8.0
4.0
Clock or Enable Rise and Fall Time
tTHL, tTLH
5.0
—
—
15
μs
10
—
—
5
15
—
—
4
Enable Pulse Width
tWH(E)
5.0
440
220
—
ns
10
200
100
—
15
140
70
—
Reset Pulse Width
tWH(R)
5.0
280
125
—
ns
10
120
55
—
15
90
40
—
Reset Removal Time
trem
5.0
–5
– 45
—
ns
10
15
– 15
—
15
20
–5
—
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.
500 μF
VDD
ID
0.01 μF
CERAMIC
PULSE
GENERATOR
C Q0
Q1
Q2
E
R
Q3
CL CL
CL
CL
VSS
20 ns
90%
50%
VARIABLE
WIDTH
20 ns
10%
VSS
Figure 1. Power Dissipation Test Circuit and Waveform
http://onsemi.com
4
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