Datasheet > 74VCXH245_05

74VCXH245_05

更新时间： 2024-09-14 04:48:03

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		/
页数	文件大小	规格书
9页	212K
描述
Low Voltage Bidirectional Transceiver with Bushold

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数据手册

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74VCXH245_05 数据手册

June 1999

Revised April 2005

74VCXH245

Low Voltage Bidirectional Transceiver with Bushold

General Description

Features

The VCXH245 contains eight non-inverting bidirectional

buffers with 3-STATE outputs and is intended for bus ori-

ented applications. The T/R input determines the direction

of data flow. The OE input disables both the A and B Ports

by placing them in a high impedance state. The VCXH245

data inputs include active bushold circuitry, eliminating the

need for external pull-up resistors to hold unused or float-

ing data inputs at a valid logic level.

■ 1.2V to 3.6V V_CCsupply operation

■ Bushold on data inputs eliminates the need for external

pull-up/pull-down resistors

■ t_PD

3.5 ns max for 3.0V to 3.6V V_CC

■ Static Drive (I_OH/I_OL

)

24 mA @ 3.0V V_CC

The 74VCXH245 is designed for low voltage (1.2V to 3.6V)

■ Uses patented Quiet Series noise/EMI reduction

V_CCapplications.

circuitry

The 74VCXH245 is fabricated with an advanced CMOS

technology to achieve high-speed operation while main-

taining low CMOS power dissipation.

■ Latchup performance exceeds 300 mA

■ ESD performance:

Human body model 2000V

Machine model 200V

Ordering Code:

Order Number Package Number

Package Description

74VCXH245WM

74VCXH245MTC

M20B

20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide

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

MTC20

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

Logic Symbol

Pin Descriptions

Pin Names

Description

Output Enable Input (Active LOW)

Transmit/Receive Input

T/R

A₀–A₇

B₀–B₇

Side A Bushold Inputs or 3-STATE Outputs

Side B Bushold Inputs or 3-STATE Outputs

Quiet Series is a trademark of Fairchild Semiconductor Corporation.

DS500198

www.fairchildsemi.com

12 3 4 5 6 7...9

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