Datasheet > 74AUCH16245PAI

74AUCH16245PAI

更新时间： 2024-09-22 05:37:19

品牌	Logo	应用领域
艾迪悌 - IDT		/
页数	文件大小	规格书
8页	122K
描述
TSSOP-48, Tube

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数据手册

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74AUCH16245PAI 数据手册

IDT74AUCH16245

INDUSTRIALTEMPERATURERANGE

1.8VCMOS16-BITBUSTRANSCEIVERWITH3-STATEOUTPUTSANDBUS-HOLD

1.8V CMOS 16-BIT BUS

TRANSCEIVER WITH

3-STATE OUTPUTS AND

BUS-HOLD

IDT74AUCH16245

DESCRIPTION:

FEATURES:

This16-bitbustransceiverisbuiltusingadvancedCMOStechnology. The

AUCH16245is designedspecificallyforasynchronous communications be-

tweendatabuses. Thecontrolfunctionimplementationminimizesexternaltiming

requirements.

• ESD > 2000V per MIL-STD-883, Method 3015; > 200V using

machine model (C = 200pF, R = 0)

• 1.8VOptimized

• 0.8V to 2.7V Operating Range

Thisdevicecanbeusedasone16-bittransceiverortwo8-bittransceivers.

ItallowsdatatransmissionfromAbustoBbusorfromBbustoAbus,depending

onthelogiclevelatthedirection-control(DIR)input. Theoutput-enable(OE)

inputcanbeusedtodisablethedevicesothatthebusesareeffectivelyisolated.

Thisdeviceisfullyspecifiedforpartialpower-downapplicationsusingIOFF.

TheIOFFcircuitrydisablestheoutputs,preventingdamagingcurrentbackflow

through the device when it is powered down.

The AUCH16245 is designed with a ±9mA output driver. This driver is

capableofdrivingamoderateloadwhilemaintainingspeedperformance.

To ensure the high-impedance state during power up or power down, OE

shouldbetiedtoV^DDthroughapull-upresistor;theminimumvalueoftheresistor

isdeterminedbythecurrent-sinkingcapabilityofthedriver.

• Inputs/outputs tolerant up to 3.6V

• Output drivers: ±9mA @ VDD = 2.3V

• Supports hot insertion

• Available in TSSOP, TVSOP, and VFBGA packages

APPLICATIONS:

• High performance, low voltage communications systems

• High performance, low voltage computing systems

The AUCH16245 data I/Os have bus-hold, which retains the last value

whenevertheI/Ogoestoahighimpedance. Thispreventsfloatinginputsand

eliminatestheneedforpull-up/pull-downresistors. Controlinputsdonothave

bus-holdandshouldnotbeallowedtofloat.

FUNCTIONALBLOCKDIAGRAM

1DIR

2DIR

1OE

1B1

2OE

1A1

2A1

2B1

TO SEVEN OTHER CHANNELS

TheIDTlogoisaregisteredtrademarkofIntegratedDeviceTechnology,Inc.

INDUSTRIAL TEMPERATURE RANGE

OCTOBER 2002

DSC-5966/12

12 3 4 5 6 7 8

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