MC14049B, MC14050B
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ AC SWITCHING CHARACTERISTICS (7.) (CL = 50 pF, TA = + 25_C)
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Characteristic
VDD
Symbol
Vdc
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Output Rise Time
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tTLH = (0.7 ns/pF) CL + 65 ns
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tTLH = (0.25 ns/pF) CL + 37.5 ns
tTLH = (0.2 ns/pF) CL + 30 ns
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Output Fall Time
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tTHL = (0.2 ns/pF) CL + 30 ns
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tTHL = (0.06 ns/pF) CL + 17 ns
tTHL = (0.04 ns/pF) CL + 13 ns
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Propagation Delay Time
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tPLH = (0.33 ns/pF) CL + 63.5 ns
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tPLH = (0.19 ns/pF) CL + 30.5 ns
tPLH = (0.06 ns/pF) CL + 27 ns
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Propagation Delay Time
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tPHL = (0.2 ns/pF) CL + 30 ns
tPHL = (0.1 ns/pF) CL + 15 ns
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tPHL = (0.05 ns/pF) CL + 12.5 ns
tTLH
5.0
10
15
tTHL
5.0
10
15
tPLH
5.0
10
15
tPHL
5.0
10
15
Min
Typ (8.)
Max
Unit
ns
—
100
160
—
50
80
—
40
60
ns
—
40
60
—
20
40
—
15
30
ns
—
80
140
—
40
80
—
30
60
ns
—
40
80
—
20
40
—
15
30
7. The formulas given are for the typical characteristics only at 25_C.
8. Data labeled “Typ” is not to be used for design purposes but is intended as an indication of the IC’s potential performance.
MC14049B
VDD
1
MC14050B
VDD
1
8 VSS
IOH
VOH
VDS = VOH – VDD
8 VSS
IOL
VOL
0
VGS = 5.0 Vdc
– 10
– 20
– 30 VGS = 10 Vdc
– 40
VGS = 15 Vdc
MAXIMUM CURRENT LEVEL
– 50
– 10
– 8.0
– 6.0
– 4.0
– 2.0
0
VDS, DRAIN–TO–SOURCE VOLTAGE (Vdc)
Figure 1. Typical Output Source Characteristics
MC14049B
VDD
1
8 VSS
IOL
VOL
VDD = VOL
MC14050B
VDD
1
8 VSS
IOH
VOH
160
VGS = 15 Vdc
120
80
VGS = 10 Vdc
MAXIMUM CURRENT LEVEL
40
VGS = 5.0 Vdc
0
0
2.0
4.0
6.0
8.0
10
VDS, DRAIN–TO–SOURCE VOLTAGE (Vdc)
Figure 2. Typical Output Sink Characteristics
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