MOTOROLA CMOS LOGIC DATA

MC14415

292

Characteristic

Symbol

VDD

Vdc

Min

Typ #

Max

Unit

Output Rise Time

tTLH = (2.0 ns/pF) CL + 10 ns

tTLH = (1.25 ns/pF) CL + 6 ns

tTLH = (1.10 ns/pF) CL + 3 ns

tTLH

5.0

10

15

—

—

—

40

25

20

85

60

—

ns

Output Fall Time

tTHL = (1.5 ns/pF) CL + 47 ns

tTHL = (0.75 ns/pF) CL + 24 ns

tTHL = (0.55 ns/pF) CL + 17 ns

tTHL

5.0

10

15

—

—

—

70

35

25

150

80

—

ns

Turn–Off Delay Time

tPLH = (2.7 ns/pF) CL + 560 ns

tPLH = (1.2 ns/pF) CL + 282 ns

tPLH = (0.91 ns/pF) CL + 286 ns

tPLH

5.0

10

15

—

—

—

600

300

150

1200

600

—

ns

Turn–On Delay Time

tPHL = (2.4 ns/pF) CL + 564 ns

tPHL = (1.0 ns/pF) CL + 285 ns

tPHL = (0.75 ns/pF) CL + 289 ns

tPHL

5.0

10

15

—

—

—

600

300

150

1200

600

—

ns

Turn–On Delay Time (Inhibit to Output)

tPHL

5.0

10

15

—

—

—

300

225

110

550

425

—

ns

Turn–Off Delay Time (Inhibit to Output)

tPLH

5.0

10

15

—

—

—

300

225

110

550

425

—

ns

Input Pulse Coincidence (Figure 3)

PCmin

5.0

10

15

500

450

—

450

350

—

—

—

—

ns

Input Pulse Width (Figure 1)

tWH

5.0

10

15

500

450

—

450

350

—

—

—

—

ns

Input Clock Frequency

fcl

5.0

10

15

—

—

—

0.7

1.0

1.5

—

—

—

MHz

Clock Input Rise and Fall Times (Figure 1)

tTLH, tTHL

5.0

10

15

—

—

—

—

—

—

15

5.0

4.0

µs

* 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.

Figure 1. Switching Characteristics — Waveform Relationships

20 ns

20 ns

VSS

VDD

VOH

VOL

VDD

VSS

VOH

VOL

INPUT

OUTPUT

CLOCK

OUTPUT

1

2

50%

90%

10%

tWH

tPLH

tTLH

tTHL

tPHL

100

50%

10%

90%

50%