HCF4027 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

HCF4027

DUAL-J-K MASTER-SLAVE FLIP-FLOP

STMicroelectronics 

LOGIC DIAGRAM AND TRUTH TABLE

ONE OF TWO IDENTICAL J-K FLIP-FLOPS

HCC/HCF4027B

TRUTH TABLE

Present State

CL ∆

Inputs

Output

Next State

Outputs

J

K

S

R

Q

I

X

O

O

O

X

O

O

O

I

O

X

O

O

O

X

I

O

O

I

X

X

O

O

X

Q

Q

–/–

I

O

–/–

I

O

–/–

O

I

–/–

O

I

–\–

← No Change

X

X

I

O

X

X

I

O

X

X

O

I

X

X

O

I

X

X

I

I

X

X

I

I

LOGIC I = HIGH LEVEL

LOGIC O = LOW LEVEL

∆ - LEVEL CHANGE

X - DON’T CARE

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