5495AFMQB datasheet(1/6 Pages) NSC

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TLF6534

June 1989

5495ADM7495

4-Bit Parallel Access Shift Registers

General Description

These 4-bit registers feature parallel and serial inputs paral-

lel outputs mode control and two clock inputs The regis-

ters have three modes of operation

Parallel (broadside) load

Shift right (the direction QA toward QD)

Shift left (the direction QD toward QA)

Parallel loading is accomplished by applying the four bits of

data and taking the mode control input high The data is

loaded into the associated flip-flops and appears at the out-

puts after the high-to-low transition of the clock-2 input Dur-

ing loading the entry of serial data is inhibited

Shift right is accomplished on the high-to-low transition of

clock 1 when the mode control is low shift left is accom-

plished on the high-to-low transition of clock 2 when the

mode control is high by connecting the output of each flip-

flop to the parallel input of the previous flip-flop (QD to input

C etc) and serial data is entered at input D The clock input

may be applied simultaneously to clock 1 and clock 2 if both

modes can be clocked from the same source

Changes at the mode control input should normally be

made while both clock inputs are low however conditions

described in the last three lines of the truth table will also

ensure that register contents are protected

Features

Y

Typical maximum clock frequency 36 MHz

Y

Typical power dissipation 250 mW

Connection Diagram

Dual-In-Line Package

TLF6534 – 1

Order Number 5495ADMQB 5495AFMQB or DM7495N

See NS Package Number J14A N14A or W14B

C1995 National Semiconductor Corporation

RRD-B30M105Printed in U S A

Số phần tương tự - 5495AFMQB

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
List of Unclassifed Man...	5495A	151Kb / 3P	4-BIT RIGHT/LEFT SHIGT REGISTER

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