MC14553BCPG Просмотр технического описания (PDF) - ON Semiconductor
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MC14553BCPG Datasheet PDF : 8 Pages
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MC14553B
ÎÎSÎÎWIÎÎTCHÎÎINGÎÎCHÎÎARÎÎACÎÎTERÎÎISTÎÎICSÎÎ(NoÎÎte 5)ÎÎ(CLÎÎ= 50ÎÎpFÎÎ, TAÎÎ= 25ÎÎ_C)ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎTyÎÎp ÎÎÎÎÎÎÎÎÎÎ
Characteristic
Figure
Symbol
VDD
Min (Note 6) Max
Unit
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
2a
tTLH,
ns
tTHL
5.0
−
100
200
10
−
50
100
15
−
40
80
Clock to BCD Out
2a
tPLH,
5.0
−
900
1800
ns
tPHL
10
−
500
1000
15
−
200
400
Clock to Overflow
2a
tPHL
5.0
−
600
1200
ns
10
−
400
800
15
−
200
400
Reset to BCD Out
2b
tPHL
5.0
−
900
1800
ns
10
−
500
1000
15
−
300
600
Clock to Latch Enable Setup Time
Master Reset to Latch Enable Setup Time
2b
tsu
5.0
600
300
−
ns
10
400
200
−
15
200
100
−
Removal Time
Latch Enable to Clock
2b
trem
5.0
– 80
– 200
−
ns
10
– 10
– 70
−
15
0
– 50
−
Clock Pulse Width
2a
tWH(cl)
5.0
550
275
−
ns
10
200
100
−
15
150
75
−
Reset Pulse Width
2b
tWH(R)
5.0
1200
600
−
ns
10
600
300
−
15
450
225
−
Reset Removal Time
−
trem
5.0
– 80
– 180
−
ns
10
0
– 50
−
15
20
– 30
−
Input Clock Frequency
2a
fcl
5.0
−
1.5
0.9
MHz
10
−
5.0
2.5
15
−
7.0
3.5
Input Clock Rise Time
2b
tTLH
5.0
No
ns
10
Limit
15
Disable, MR, Latch Enable
Rise and Fall Times
−
tTLH,
5.0
−
−
15
ms
tTHL
10
−
−
5.0
15
−
−
4.0
Scan Oscillator Frequency
(C1 measured in mF)
1
fosc
5.0
−
1.5/C1
−
Hz
10
−
4.2/C1
−
15
−
7.0/C1
−
5. The formulas given are for the typical characteristics only at 25_C.
6. Data labelled “Typ” is not to be used for design purposes but is intended as an indication of the IC’s potential performance.
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