MC14012B(2011) 查看數據表（PDF） - ON Semiconductor
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MC14012B Datasheet PDF : 8 Pages
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MC14012B
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ SWITCHING CHARACTERISTICS (Note 5) (CL = 50 pF, TA = 25_C)
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Characteristic
Symbol
VDD
Vdc
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Output Rise Time
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tTLH = (1.35 ns/pF) CL + 33 ns
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tTLH = (0.60 ns/pF) CL + 20 ns
tTLH = (0.40 ns/PF) CL + 20 ns
tTLH
5.0
10
15
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Output Fall Time
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tTHL = (1.35 ns/pF) CL + 33 ns
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tTHL = (0.60 ns/pF) CL + 20 ns
tTHL = (0.40 ns/pF) CL + 20 ns
tTHL
5.0
10
15
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Propagation Delay Time
tPLH, tPHL = (0.90 ns/pF) CL + 115 ns
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tPLH, tPHL = (0.36 ns/pF) CL + 47 ns
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tPLH, tPHL = (0.26 ns/pF) CL + 37 ns
tPLH, tPHL
5.0
10
15
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ 5. The formulas given are for the typical characteristics only at 25_C.
Min
Typ
Max
Unit
(Note 6)
ns
−
100
200
−
50
100
−
40
80
ns
−
100
200
−
50
100
−
40
80
ns
−
160
300
−
65
130
−
50
100
6. Data labelled “Typ” is not to be used for design purposes but is intended as an indication of the IC’s potential performance.
14 VDD
PULSE
GENERATOR
INPUT
OUTPUT
20 ns
20 ns
INPUT
90%
50%
VDD
10%
0V
tPHL
tPLH
*
CL
OUTPUT
INVERTING tTHL
90%
50%
10%
tTLH
VOH
VOL
7 VSS
OUTPUT tPLH
tPHL
90%
VOH
NON−INVERTING
50%
*All unused inputs of AND, NAND gates must be connected to VDD.
All unused inputs of OR, NOR gates must be connected to VSS.
10%
VOL
tTLH
tTHL
Figure 3. Switching Time Test Circuit and Waveforms
VDD
2, 9
3, 10
VSS
4, 11
SAME AS
5, 12
ABOVE
14 VDD
*
1, 13
*Inverter omitted
7 VSS
Figure 4. Circuit Schematic − One of Two Gates Shown
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