DM54LS502W datasheet(1/6 Pages) NSC

No de pièce	DM54LS502W

Description	8-Bit Successive Approximation Register

PDF	6 Pages

Scroll/Zoom	100%

Fabricant	NSC [National Semiconductor (TI)]

Site Internet	http://www.national.com

Logo

1 / 6 page

TLF10189

April 1992

DM54LS502DM74LS502

8-Bit Successive Approximation Register

General Description

The LS502 is an 8-bit register with the interstage logic nec-

essary to perform serial-to-parallel conversion and provide

an active LOW Conversion Complete (CC) signal coincident

with storage of the eighth bit An active LOW Start (S) input

performs synchronous initialization which forces Q7 LOW

and all other outputs HIGH Subsequent clocks shift this Q7

LOW signal downstream which simultaneously backfills the

register such that the first serial data (D input) bit is stored in

Q7 the second bit in Q6 the third in Q5 etc The serial

input data is also synchronized by an auxiliary flip-flop and

brought out on QD

Designed primarily for use in the successive approximation

technique for analog-to-digital conversion the LS502 can

also be used as a serial-to-parallel converter ring counter

and as the storage and control element in recursive digital

routines

Features

Y

Low power Schottky version of 2502

Y

Storage and control for successive approximation A to

D conversion

Y

Performs serial-to-parallel conversion

Connection Diagram

Dual-In-Line Package

TLF10189 – 1

Order Number DM54LS502J DM54LS502W

DM74LS502WM or DM74LS502N

See NS Package Number J16A M16B N16E or W16A

Logic Symbol

TLF10189 – 2

VCC e Pin 16

GND e Pin 8

Description

Names

D

Serial Data Input

S

Start Input (Active LOW)

CP

Clock Pulse Input (Active Rising Edge)

QD

Synchronized Serial Data Output

CC

Conversion Complete Output (Active LOW)

Q0 – Q7

Parallel Register Outputs

Q7

Complement of Q7 Output

C1995 National Semiconductor Corporation

RRD-B30M105Printed in U S A

Numéro de pièce similaire - DM54LS502W

Fabricant	No de pièce	Fiches technique	Description
National Semiconductor ...	DM54LS502W/883	14Kb / 6P	8 - BIT SUCCESSIVE APPROXIMATION REGISTER

More results

Description similaire - DM54LS502W

Fabricant	No de pièce	Fiches technique	Description
Nippon Precision Circui...	SM6150	161Kb / 6P	Successive-approximation 8-bit A/D Converter
Nippon Precision Circui...	SM6155P	183Kb / 7P	Successive-approximation 8-bit A/D Converter
Fairchild Semiconductor	DM74LS503	45Kb / 4P	8-Bit Successive Approximation Register (with Expansion Control)
Fairchild Semiconductor	MM74C905	89Kb / 8P	12-Bit Successive Approximation Register
Hitachi Semiconductor	HD14549B	124Kb / 6P	Successive Approximation Register
National Semiconductor ...	MNDM54LS502-X	14Kb / 6P	8 - BIT SUCCESSIVE APPROXIMATION REGISTER
List of Unclassifed Man...	ZN439	344Kb / 25P	8-Bit Successive Approximation A-D Converter
ON Semiconductor	MC14549B	98Kb / 9P	Successive Approximation Registers June, 2006 ??Rev. 6
Linear Dimensions Semic...	LND2907HT	100Kb / 1P	10-Bit Successive Approximation Register Analog-to-
Texas Instruments	DM2502	447Kb / 10P	Successive Approximation Registers

More results

DM54LS502W Fiches technique(PDF) 1 Page - National Semiconductor (TI)

DM54LS502W Fiches technique(HTML) 1 Page - National Semiconductor (TI)

Numéro de pièce similaire - DM54LS502W

Description similaire - DM54LS502W

Html Pages

1 2 3 4 5 6

Fiches technique Télécharger

Lien URL