74LS107 datasheet(3/6 Pages) NSC

3 / 6 page

Electrical Characteristics

over recommended operating free air temperature range (unless otherwise noted) (Continued)

Symbol

Parameter

Conditions

Min

Typ

Max

Units

(Note 1)

IIH

High Level Input

VCC e Max

J K

Current

VI e 27V

Clear

Clock

IIL

Low Level Input

VCC e Max

J K

Current

VI e 04V

Clear

Clock

IOS

Short Circuit

VCC e Max

DM54

100

Output Current

(Note 2)

DM74

100

ICC

Supply Current

VCC e Max (Note 3)

Switching Characteristics at VCC e 5V and TA e 25 C (See Section 1 for Test Waveforms and Output Load)

From (Input)

RL e 2kX

Symbol

Parameter

To (Output)

CL e 15 pF

CL e 50 pF

Units

Min

Max

Min

Max

fMAX

Maximum Clock

MHz

Frequency

tPLH

Propagation Delay Time

Preset

Low to High Level Output

to Q

tPHL

Propagation Delay Time

Preset

High to Low Level Output

to Q

tPLH

Propagation Delay Time

Clear

Low to High Level Output

to Q

tPHL

Propagation Delay Time

Clear

High to Low Level Output

to Q

tPLH

Propagation Delay Time

Clock to

Low to High Level Output

Q or Q

tPHL

Propagation Delay Time

Clock to

High to Low Level Output

Q or Q

Note 1

All typicals are at VCC e 5V TA e 25 C

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

shorting the outputs to ground may cause the outputs to change logic state an equivalent test may be performed where VO e 225V and 2125V for DM54 and

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

With all inputs open ICC is measured with the Q and Q outputs high in turn At the time of measurement the clock is grounded

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