HEF40174B Ver la hoja de datos (PDF) - Philips Electronics

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HEF40174B

Hex D-type flip-flop

Philips Electronics 

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

MR

H

H

OUTPUT

O

H

L

H

L

X

H

no change

X

X

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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