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MC14049B, MC14050B

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ AC SWITCHING CHARACTERISTICS (Note 5) (CL = 50 pF, TA = + 25_C)

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Characteristic

Symbol

VDD

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

Max

Unit

(Note 6)

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

5. The formulas given are for the typical characteristics only at 25_C.

6. 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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