January 1995

2

Philips Semiconductors

Product specification

Dual D-type flip-flop

HEF4013B

flip-flops

DESCRIPTION

The HEF4013B is a dual D-type flip-flop which features

(CP) and outputs (O, O). Data is accepted when CP is

LOW and transferred to the output on the positive-going

edge of the clock. The active HIGH asynchronous

override the D or CP inputs. The outputs are buffered for

best system performance. Schmitt-trigger action in the

clock input makes the circuit highly tolerant to slower clock

rise and fall times.

Fig.1 Functional diagram.

Fig.2 Pinning diagram.

FUNCTION TABLES

Notes

1. H = HIGH state (the more positive voltage)

L = LOW state (the less positive voltage)

X = state is immaterial

= positive-going transition

PINNING

See Family Specifications

INPUTS

OUTPUTS

CP

D

O

O

HL

X

X

H

L

LH

X

X

L

H

HH

X

X

H

H

INPUTS

OUTPUTS

CP

D

LL

L

L

H

LL

H

H

L

D

data inputs

CP

clock input (L to H edge-triggered)

asynchronous set-direct input (active HIGH)

asynchronous clear-direct input (active HIGH)

O

true output

O

complement output

HEF4013BP(N):

14-lead DIL; plastic

(SOT27-1)

HEF4013BD(F):

14-lead DIL; ceramic (cerdip)

(SOT73)

HEF4013BT(D):

14-lead SO; plastic

(SOT108-1)

( ): Package Designator North America