Symbol

Parameter

Conditions

Min

Typ

Max

Units

(Note 1)

Input Clamp Voltage

b

15

V

High Level Output

DM54

25

34

V

Voltage

DM74

27

34

Low Level Output

DM54

025

04

Voltage

DM74

035

05

V

DM74

025

04

Input Current

Max

Data

01

Input Voltage

Clock

01

mA

Preset

02

Clear

02

High Level Input

Data

20

Current

Clock

20

m

A

Clear

40

Preset

40

Low Level Input

Data

b

04

Current

Clock

b

04

mA

Preset

b

08

Clear

b

08

Short Circuit

DM54

b

20

b

100

mA

Output Current

(Note 2)

DM74

b

20

b

100

Supply Current

4

8

mA

Note 1

Note 2

Not more than one output should be shorted at a time and the duration should not exceed one second For devices with feedback from the outputs where

DM74 series respectively with the minimum and maximum limits reduced by one half from their stated values This is very useful when using automatic test

equipment

Note 3

From (Input)

Symbol

Parameter

To (Output)

Units

Min

Max

Min

Max

Maximum Clock Frequency

25

20

MHz

Propagation Delay Time

Clock to

25

35

ns

Low to High Level Output

Q or Q

Propagation Delay Time

Clock to

30

35

ns

High to Low Level Output

Q or Q

Propagation Delay Time

Preset

25

35

ns

Low to High Level Output

to Q

Propagation Delay Time

Preset

30

35

ns

High to Low Level Output

to Q

Propagation Delay Time

Clear

25

35

ns

Low to High Level Output

to Q

Propagation Delay Time

Clear

30

35

ns

High to Low Level Output

to Q

3