TC74LCX74F/FN/FT/FK

2007-10-19

2

IEC Logic Symbol

Truth Table

Inputs

Outputs

CLR

PR

D

CK

Q

Q

Function

L

H

X

X

L

H

Clear

H

L

X

X

H

L

Preset

L

L

X

X

H

H

⎯

H

H

L

L

H

⎯

H

H

H

H

L

⎯

H

H

X

Qn

n

Q

No change

X: Don’t care

Absolute Maximum Ratings (Note 1)

Characteristics

Symbol

Rating

Unit

Power supply voltage

−0.5 to 7.0

V

DC input voltage

−0.5 to 7.0

V

−0.5 to 7.0 (Note 2)

DC output voltage

(Note 3)

V

Input diode current

−50

mA

Output diode current

±50

(Note 4)

mA

DC output current

±50

mA

Power dissipation

180

mW

±100

mA

Storage temperature

−65 to 150

°C

Note 1: Exceeding any of the absolute maximum ratings, even briefly, lead to deterioration in IC performance or

even destruction.

Using continuously under heavy loads (e.g. the application of high temperature/current/voltage and the

significant change in temperature, etc.) may cause this product to decrease in the reliability significantly

even if the operating conditions (i.e. operating temperature/current/voltage, etc.) are within the absolute

maximum ratings and the operating ranges.

Please design the appropriate reliability upon reviewing the Toshiba Semiconductor Reliability Handbook

(“Handling Precautions”/“Derating Concept and Methods”) and individual reliability data (i.e. reliability test

report and estimated failure rate, etc).

CLR

2

2D

2CK

PR

2

2Q

14

13

12

11

10

CLR

1

1

2

3

4

5

6

7

1D

1CK

PR

1

1Q

Q

1

GND

Q

2

9

8

CK

Q

D

Q

CK

Q

D

Q

3

S

4

1

2

11

10

13

12

1CK

PR

1

1D

2CK

2D

5

6

9

8

1Q

Q

1

2Q

Q

2

PR

2

CLR

1

CLR

2

C1

1D

R