HCF4027 datasheet(3/12 Pages) STMICROELECTRONICS

Part #	HCF4027

Description	DUAL-J-K MASTER-SLAVE FLIP-FLOP

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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LOGIC DIAGRAM AND TRUTH TABLE

Present State

Next State

Inputs

Output

CL ∆

Outputs

JKS

R

Q

IX

O

–

/

–

IO

XO

O

I

–

/

–

IO

OX

O

–

/

–

OI

XI

O

I

–

/

–

OI

XX

O

X

–

\–

← No Change

XX

I

O

X

I

O

XX

O

I

X

O

I

XX

I

X

I

ONE OF TWO IDENTICAL J-K FLIP-FLOPS

LOGIC I = HIGH LEVEL

LOGIC O = LOW LEVEL

∆ - LEVEL CHANGE

X - DON’T CARE

TRUTH TABLE

HCC/HCF4027B

3/12

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