DM54LS373W datasheet(2/8 Pages) NSC

Numer części	DM54LS373W

Szczegółowy opis	TRI-STATEE Octal D-Type Transparent Latches and Edge-Triggered Flip-Flops

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Producent	NSC [National Semiconductor (TI)]

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General Description (Continued)

The eight latches of the DM5474LS373 are transparent D-

type latches meaning that while the enable (G) is high the Q

outputs will follow the data (D) inputs When the enable is

taken low the output will be latched at the level of the data

that was set up

The eight flip-flops of the DM5474LS374 are edge-trig-

gered D-type flip flops On the positive transition of the

clock the Q outputs will be set to the logic states that were

set up at the D inputs

A buffered output control input can be used to place the

eight outputs in either a normal logic state (high or low logic

levels) or a high-impedance state In the high-impedance

state the outputs neither load nor drive the bus lines signifi-

cantly

The output control does not affect the internal operation of

the latches or flip-flops That is the old data can be retained

or new data can be entered even while the outputs are off

Function Tables

DM5474LS373

Output

Enable

D

Output

Control

G

LH

H

LH

L

LL

X

Q0

HX

X

Z

DM5474LS374

Output

Clock

D

Output

Control

L

u

HH

L

u

LL

X

Q0

HX

X

Z

H e High Level (Steady State) L e Low Level (Steady State) X e Don’t Care

u e Transition from low-to-high level Z e High Impedance State

Q0 e The level of the output before steady-state input conditions were established

Logic Diagrams

DM5474LS373

Transparent Latches

TLF6431 – 3

DM5474LS374

Positive-Edge-Triggered Flip-Flops

TLF6431 – 4

2

Podobny numer części - DM54LS373W

Producent	Numer części	Arkusz danych	Szczegółowy opis
National Semiconductor ...	DM54LS377	143Kb / 6P	Octal D Flip-Flop with Common Enable and Clock
	DM54LS377E	143Kb / 6P	Octal D Flip-Flop with Common Enable and Clock
	DM54LS377J	143Kb / 6P	Octal D Flip-Flop with Common Enable and Clock
	DM54LS377W	143Kb / 6P	Octal D Flip-Flop with Common Enable and Clock

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Podobny opis - DM54LS373W

Producent	Numer części	Arkusz danych	Szczegółowy opis
Texas Instruments	SN54LS373	331Kb / 24P	[Old version datasheet] OCTAL D-TYPE TRANSPARENT LATCHES AND EDGE-TRIGGERED FLIP-FLOPS
	SN54LS373	1Mb / 30P	[Old version datasheet] OCTAL D-TYPE TRANSPARENT LATCHES AND EDGE-TRIGGERED FLIP-FLOPS
	SN74LS373	694Kb / 28P	[Old version datasheet] OCTAL D-TYPE TRANSPARENT LATCHES AND EDGE-TRIGGERED FLIP-FLOPS
	SN74S374	242Kb / 10P	[Old version datasheet] OCTAL D-TYPE TRANSPARENT LATCHES AND EDGE-TRIGGERED FLIP-FLOPS
	SN54LS373	1Mb / 32P	[Old version datasheet] OCTAL D-TYPE TRANSPARENT LATCHES AND EDGE-TRIGGERED FLIP-FLOPS REVISED AUGUST 2002
Fairchild Semiconductor	DM74LS373	88Kb / 8P	3-STATE Octal D-Type Transparent Latches and Edge-Triggered Flip-Flops
Texas Instruments	SN54F374	1Mb / 20P	[Old version datasheet] OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS
Unisonic Technologies	U74AHC374	271Kb / 6P	OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS
Unisonic Technologies	U74HCT374	233Kb / 6P	OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS
Texas Instruments	SN54AC374	684Kb / 18P	[Old version datasheet] OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS

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