MC74AC109, MC74ACT109

http://onsemi.com

2

TRUTH TABLE

Inputs

Outputs

CP

J

K

Q

Q

L

H

X

X

X

H

L

H

LX

X

X

L

H

L

LX

X

X

H

H

H

H

LL

L

H

H

H

H

L

Toggle

H

H

LH

H

H

HH

H

L

H

H

L

X

X

H = HIGH Voltage Level

L = LOW Voltage Level

= LOW−to−HIGH Clock Transition

X = Immaterial

LOW−to−HIGH Transition of Clock

Figure 2. Logic Symbol

Q

JCP

Q

K

Q

JCP

Q

K

K

CP

J

Q

Q

NOTE: This diagram is provided only for the understanding of logic

operations and should not be used to estimate propagation

delays.

Figure 3. Logic Diagram

(One Half Shown)

MAXIMUM RATINGS*

Symbol

Parameter

Value

Unit

DC Supply Voltage (Referenced to GND)

−0.5 to +7.0

V

DC Input Voltage (Referenced to GND)

V

DC Output Voltage (Referenced to GND)

V

DC Input Current, per Pin

±20

mA

DC Output Sink/Source Current, per Pin

±50

mA

±50

mA

Storage Temperature

−65 to +150

°C

*Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the Recom-

mended Operating Conditions.