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INTEGRATED CIRCUITS
DATA SHEET
For a complete data sheet, please also download:
The IC04 LOCMOS HE4000B Logic
Family Specifications HEF, HEC
The IC04 LOCMOS HE4000B Logic
Package Outlines/Information HEF, HEC
HEF40174B
MSI
Hex D-type flip-flop
Product specification
File under Integrated Circuits, IC04
January 1995

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Philips Semiconductors
Hex D-type flip-flop
Product specification
HEF40174B
MSI
DESCRIPTION
The HEF40174B is a hex edge-triggered D-type flip-flop
with six data inputs (D0 to D5), a clock input (CP), an
overriding asynchronous master reset input (MR), and six
buffered outputs (O0 to O5). Information on D0 to D5 is
transferred to O0 to O5 on the LOW to HIGH transition of
CP if MR is HIGH. When LOW, MR resets all flip-flops
(O0 to O5 = LOW) independent of CP and D0 to D5.
Fig.1 Functional diagram.
Fig.2 Pinning diagram.
HEF40174BP(N): 16-lead DIL; plastic
(SOT38-1)
HEF40174BD(F): 16-lead DIL; ceramic (cerdip)
(SOT74)
HEF40174BT(D): 16-lead SO; plastic
(SOT109-1)
( ): Package Designator North America
FAMILY DATA, IDD LIMITS category MSI
See Family Specifications
January 1995
PINNING
D0 to D5
CP
MR
O0 to O5
data inputs
clock input (LOW to HIGH; edge-triggered)
master reset input (active LOW)
buffered outputs
FUNCTION TABLE
INPUTS
CP D
H
MR
H
OUTPUT
O
H
LH
L
X H no change
XX L
L
Notes
1. H = HIGH state (the more positive voltage)
L = LOW state (the less positive voltage)
X = state is immaterial
= positive-going transition
= negative-going transition
2

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Fig.3 Logic diagram.