MC14518B 데이터 시트보기 (PDF) - Motorola => Freescale
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MC14518B Datasheet PDF : 7 Pages
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ÎÎÎÎSÎÎÎÎWIÎÎÎÎTCHÎÎÎÎINGÎÎÎÎCHÎÎÎÎARÎÎÎÎACÎÎÎÎTERÎÎÎÎISTÎÎÎÎICSÎÎÎÎ* (CÎÎÎÎL=5ÎÎÎÎ0pFÎÎÎÎ,TAÎÎÎÎ=2ÎÎÎÎ5_CÎÎÎÎ) ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎAlÎÎÎÎlTypÎÎÎÎes ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
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
Symbol
tTLH,
tTHL
tPLH,
tPHL
VDD
5.0
10
15
5.0
10
15
Min
Typ #
Max
Unit
ns
—
100
200
—
50
100
—
40
80
ns
—
280
560
—
115
230
—
80
160
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
tPHL
tw(H)
tw(L)
ns
5.0
—
330
650
10
—
130
230
15
—
90
170
5.0
200
100
10
100
50
15
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
10
200
100
15
140
70
—
ns
—
—
Reset Pulse Width
tWH(R)
5.0
280
125
10
120
55
15
90
40
—
ns
—
—
Reset Removal Time
trem
5.0
–5
– 45
—
ns
10
15
– 15
—
15
20
–5
—
* The formulas given are for the typical characteristics only at 25_C.
#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
MOTOROLA CMOS LOGIC DATA
MC14518B MC14520B
411
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