HEF40175B View Datasheet(PDF) - Philips Electronics

Part Name

Description

Manufacturer

HEF40175B

Quadruple D-type flip-flop

Philips Electronics 

Philips Semiconductors

Quadruple D-type flip-flop

Product specification

HEF40175B

MSI

DESCRIPTION

The HEF40175B is a quadruple edge-triggered D-type

flip-flop with four data inputs (D0 to D3), a clock input (CP),

an overriding asynchronous master reset input (MR), four

buffered outputs (O0 to O3), and four complementary

buffered outputs (O0 to O3). Information on D0 to D3 is

transferred to O0 to O3 on the LOW to HIGH transition of

CP if MR is HIGH. When LOW, MR resets all flip-flops

(O0 to O3 = LOW, O0 to O3 = HIGH), independent of CP

and D0 to D3.

Fig.1 Functional diagram.

Fig.2 Pinning diagram.

HEF40175BP(N): 16-lead DIL; plastic

(SOT38-1)

HEF40175BD(F): 16-lead DIL; ceramic (cerdip)

(SOT74)

HEF40175BT(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 D3

CP

MR

O0 to O3

O0 to O3

data inputs

clock input (LOW to HIGH; edge-triggered)

master reset input (active LOW)

buffered outputs

complementary buffered outputs

FUNCTION TABLE

INPUTS

CP

D

MR

H

H

OUTPUTS

O

O

H

L

L

H

L

H

X

H no change no change

X

X

L

L

H

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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