74HCT646DB datasheet(7/12 Pages) PHILIPS

Il numero della parte	74HCT646DB

Spiegazioni elettronici	Octal bus transceiver/register; 3-state

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Produttore elettronici	PHILIPS [NXP Semiconductors]

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7 / 12 page

September 1993

7

Philips Semiconductors

Product speciﬁcation

Octal bus transceiver/register; 3-state

74HC/HCT646

DC CHARACTERISTICS FOR 74HCT

For the DC characteristics see

“74HC/HCT/HCU/HCMOS Logic Family Specifications”.

Output capability: bus driver

ICC category: MSI

Note to HCT types

The value of additional quiescent supply current (

∆ICC) for a unit load of 1 is given in the family specifications.

To determine

∆ICC per input, multiply this value by the unit load coefficient shown in the table below.

INPUT

UNIT LOAD COEFFICIENT

SAB, SBA

0.60

A0 to A7 and B0 to B7

0.75

INPUT

UNIT LOAD COEFFICIENT

CPAB,CPBA

1.50

OE

DIR

1.50

1.25

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