Datasheet

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
independent set direct (S
D
), clear direct (C
D
), clock inputs
(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
clear-direct (C
D
) and set-direct (S
D
) are independent and
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
O
n
+ 1 = state after clock positive transition
PINNING
FAMILY DATA, I
DD
LIMITS category FLIP-FLOPS
See Family Specifications
INPUTS OUTPUTS
S
D
C
D
CP D O O
HLXX H L
LHXX L H
HHXX H H
INPUTS OUTPUTS
S
D
C
D
CP D O
n
+ 1 O
n
+ 1
LL L L H
LL H H L
D data inputs
CP clock input (L to H edge-triggered)
S
D
asynchronous set-direct input (active HIGH)
C
D
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