74LVX4245

更新时间： 2024-10-01 22:15:07

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		/
页数	文件大小	规格书
8页	88K
描述
8-Bit Dual Supply Translating Transceiver with 3-STATE Outputs

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中文翻译

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数据手册

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74LVX4245 数据手册

January 1993

Revised September 2003

74LVX4245

8-Bit Dual Supply Translating Transceiver

with 3-STATE Outputs

General Description

Features

■ Bidirectional interface between 5V and 3V buses

The LVX4245 is a dual-supply, 8-bit translating transceiver

that is designed to interface between a 5V bus and a 3V

bus in a mixed 3V/5V supply environment. The Transmit/

Receive (T/R) input determines the direction of data flow.

Transmit (active-HIGH) enables data from A Ports to B

Ports; Receive (active-LOW) enables data from B Ports to

A Ports. The Output Enable input, when HIGH, disables

both A and B Ports by placing them in a high impedance

condition. The A Port interfaces with the 5V bus; the B Port

interfaces with the 3V bus.

■ Control inputs compatible with TTL level

■ 5V data flow at A Port and 3V data flow at B Port

■ Outputs source/sink 24 mA at 5V bus; 12 mA at 3V bus

■ Guaranteed simultaneous switching noise level and

dynamic threshold performance

■ Implements patented EMI reduction circuitry

■ Functionally compatible with the 74 series 245

The LVX4245 is suitable for mixed voltage applications

such as laptop computers using 3.3V CPU’s and 5V LCD

displays.

Ordering Code:

Order Number Package Number

Package Description

74LVX4245WM

74LVX4245QSC

74LVX4245MTC

M24B

MQA24

MTC24

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

24-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150" Wide

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

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

T/R

Transmit/Receive Input

A₀–A₇

B₀–B₇

Side A Inputs or 3-STATE Outputs

Side B Inputs or 3-STATE Outputs

Connection Diagram

Truth Table

Inputs

Outputs

T/R

Bus B Data to Bus A

Bus A Data to Bus B

HIGH-Z State

H = HIGH Voltage Level

L = LOW Voltage Level

X = Immaterial

DS011540

www.fairchildsemi.com

12 3 4 5 6 7 8

中文翻译

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与74LVX4245相关器件

型号	品牌	获取价格	描述	数据表
74LVX4245M	FAIRCHILD	获取价格	8-Bit Dual Supply Translating Transceiver with 3-STATE Outputs
74LVX4245MTC	ONSEMI	获取价格	带 3 状态输出的 8 位双电源转换收发器
74LVX4245MTC	NSC	获取价格	8-Bit Dual Supply Translating Transceiver with TRI-STATE Outputs
74LVX4245MTC	FAIRCHILD	获取价格	8-Bit Dual Supply Translating Transceiver with 3-STATE Outputs
74LVX4245MTCX	NSC	获取价格	8-Bit Dual Supply Translating Transceiver with TRI-STATE Outputs
74LVX4245MTCX	FAIRCHILD	获取价格	8-Bit Dual Supply Translating Transceiver with 3-STATE Outputs
74LVX4245MTCX	ONSEMI	获取价格	带 3 状态输出的 8 位双电源转换收发器
74LVX4245MTR	STMICROELECTRONICS	获取价格	OCTAL DUAL SUPPLY BUS TRANSCEIVER
74LVX4245QSC	NSC	获取价格	8-Bit Dual Supply Translating Transceiver with TRI-STATE Outputs
74LVX4245QSC	FAIRCHILD	获取价格	8-Bit Dual Supply Translating Transceiver with 3-STATE Outputs

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