74VCXH245

更新时间： 2024-09-13 22:11:51

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		/
页数	文件大小	规格书
8页	84K
描述
Low Voltage Bidirectional Transceiver with Bushold

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中文翻译

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数据手册

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74VCXH245 数据手册

June 1999

Revised June 1999

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.

■ 1.65V-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

4.2 ns max for 2.3V to 2.7V V_CC

8.4 ns max for 1.65V to 1.95V V_CC

The 74VCXH245 is designed for low voltage (1.65V to

3.6V) V_CCapplications.

■ Static Drive (I_OH/I_OL

)

±24 mA @ 3.0V V_CC

±18 mA @ 2.3V V_CC

± 6mA @ 1.65V V_CC

The 74VCXH245 is fabricated with an advanced CMOS

technology to achieve high-speed operation while main-

taining low CMOS power dissipation.

■ Uses patented Quiet Series noise/EMI reduction

circuitry

■ Latchup performance exceeds 300 mA

■ ESD performance:

Human body model > 2000V

Machine model > 200V

Ordering Code:

Order Number

74VCXH245WM

74VCXH245MTC

Package Number

M20B

Package Description

20-Lead Small Outline Integrated Circuit, JEDEC MS-013, 0.300” Wide Body

20-Lead Thin Shrink Small Outline Package, 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 8

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74VCXH245/D	ETC	获取价格	74VCXH245
74VCXH245_05	FAIRCHILD	获取价格	Low Voltage Bidirectional Transceiver with Bushold
74VCXH245DT	FAIRCHILD	获取价格	ALVC/VCX/A SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO20, TSSOP-20
74VCXH245DW	FAIRCHILD	获取价格	ALVC/VCX/A SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO20, SO-20
74VCXH245MN	FAIRCHILD	获取价格	ALVC/VCX/A SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, QCC20, DQFN-20
74VCXH245MNR2	FAIRCHILD	获取价格	Low-Voltage 1.8/2.5/3.3 V 8-Bit Transceiver
74VCXH245MNR2G	FAIRCHILD	获取价格	Low-Voltage 1.8/2.5/3.3 V 8-Bit Transceiver
74VCXH245MTC	FAIRCHILD	获取价格	Low Voltage Bidirectional Transceiver with Bushold
74VCXH245MTCX	FAIRCHILD	获取价格	Single 8-bit Bus Transceiver
74VCXH245WM	FAIRCHILD	获取价格	Low Voltage Bidirectional Transceiver with Bushold