74LVTH543

更新时间： 2024-11-24 22:56:23

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		/
页数	文件大小	规格书
7页	69K
描述
Low Voltage Octal Registered Transceiver with 3-STATE Outputs

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数据手册

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74LVTH543 数据手册

April 2000

Revised April 2000

74LVTH543

Low Voltage Octal Registered Transceiver

with 3-STATE Outputs

General Description

Features

■ Input and output interface capability to systems at

The LVTH543 octal transceiver contains two sets of D-type

latches for temporary storage of data flowing in either

direction. Separate Latch Enable and Output Enable inputs

are provided for each register to permit independent con-

trol of inputting and outputting in either direction of data

flow.

5V V_CC

■ Bushold data inputs eliminate the need for external pull-

up resistors to hold unused inputs

■ Live insertion/extraction permitted

■ Power Up/Down high impedance provides glitch-free

bus loading

The LVTH543 data inputs include bushold, eliminating the

need for external pull-up resistors to hold unused inputs.

■ Outputs source/sink −32 mA/+64 mA

This octal registered transceiver is designed for low-volt-

age (3.3V) V_CCapplications, but with the capability to pro-

■ Functionally compatible with the 74 series 543

■ Latch-up performance exceeds 500 mA

vide a TTL interface to a 5V environment. The LVTH543 is

fabricated with an advanced BiCMOS technology to

achieve high speed operation similar to 5V ABT while

maintaining a low power dissipation.

Ordering Code:

Order Number Package Number

Package Description

74LVTH543WM

M24B

24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide

24-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide

74LVTH543MTC

MTC24

Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.

Connection Diagram

Pin Descriptions

Pin Names

OEAB, OEBA

Description

Output Enable Inputs

Latch Enable Inputs

Chip Enable Inputs

Side A Inputs or

LEAB, LEBA

CEAB, CEBA

A₀–A₇

3-STATE Outputs

Side B Inputs or

B₀–B₇

3-STATE Outputs

DS012448

www.fairchildsemi.com

12 3 4 5 6 7

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