IDTQS3389

更新时间： 2024-11-22 21:55:07

品牌	Logo	应用领域
艾迪悌 - IDT		/
页数	文件大小	规格书
5页	45K
描述
QUICKSWITCH PRODUCTS LAST VALUE LATCH 20 ACTIVE BUS TERMINATORS

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IDTQS3389 数据手册

IDTQS3389

COMMERCIALTEMPERATURERANGE

LASTVALUELATCH20ACTIVETERMINATORS(BUSHOLD)

QUICKSWITCH^®PRODUCTS

IDTQS3389

LAST VALUE LATCH

20 ACTIVE BUS TERMINATORS

(BUS HOLD)

FEATURES:

DESCRIPTION:

• Active termination pulls bus pins to rails

• Holds last value of input signal

• Ideal replacement for resistive termination

• Ultra low 3µA DC quiescent current

• Bus-hold eliminates floating bus lines and reduces static

power consumption

TheQS3389providesasetof20activeterminationcircuitswhichpulldata

bussignalstothevoltagerails.Thisfeaturepreventsbussignalsfromfloating

in the threshold region of standard TTL I/O devices. The QS3389 can

replaceresistorterminationsolutionswhichaddDCpowerdissipationand

increase component count. Input clamp diodes help to reduce reflections

andundershootintransmissionlineenvironments. Importantly, thetermi-

natorcircuitspullsignalstowhicheverlogicstatethesignalpreviouslyheld

(high or low). For this reason, this device is also referred to as a last value

latch.Thisdeviceisappropriatefordatabusapplicationswhereinterfacing

devices have CMOS inputs with low input currents. These terminators

provide sufficient drive to overcome leakage currents and drive corre-

sponding signals away from the TTL threshold region.

• Low power QCMOS technology

• Operates over 2.7V to 5.5V Vcc range

• TTL-compatible input and output levels

• No added noise or ground bounce

• 20 independent terminator circuits

• Available in QSOP package

The QS3389 is characterized for operation at 0°C to +70°C.

APPLICATIONS:

• Bus termination

• Extend data hold time

FUNCTIONALBLOCKDIAGRAM

7KΩ

T19

7KΩ

TheIDTlogoisaregisteredtrademarkofIntegratedDeviceTechnology,Inc.

COMMERCIAL TEMPERATURE RANGE

DECEMBER 1999

1999 Integrated Device Technology, Inc.

DSC-5733/1

12 3 4 5

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与IDTQS3389相关器件

型号	品牌	获取价格	描述	数据表
IDTQS3389Q	IDT	获取价格	QUICKSWITCH PRODUCTS LAST VALUE LATCH 20 ACTIVE BUS TERMINATORS
IDTQS3390	IDT	获取价格	QUICKSWITCH PRODUCTS HIGH-SPEED CMOS QUICKSWITCH 16:8 MULTIPLEXER
IDTQS3390Q	IDT	获取价格	暂无描述
IDTQS3390QG	IDT	获取价格	Multiplexer, 3390 Series, 8-Func, 2 Line Input, 1 Line Output, True Output, CMOS, PDSO28,
IDTQS3390SO	IDT	获取价格	Multiplexer, 3390 Series, 8-Func, 2 Line Input, 1 Line Output, True Output, CMOS, PDSO28,
IDTQS3390SO8	IDT	获取价格	Multiplexer, 3390 Series, 8-Func, 2 Line Input, 1 Line Output, True Output, CMOS, PDSO28,
IDTQS33X2253Q1	ETC	获取价格	4-Input Digital Multiplexer
IDTQS33X2253Q18	IDT	获取价格	Multiplexer, 6-Func, CMOS, PDSO48, QVSOP-48
IDTQS33X253	IDT	获取价格	QUICKSWITCH PRODUCTS HIGH-SPEED CMOS QUICKSWITCH MULTIWIDTH 24:6 MUX/DEMUX
IDTQS33X253Q1	IDT	获取价格	QUICKSWITCH PRODUCTS HIGH-SPEED CMOS QUICKSWITCH MULTIWIDTH 24:6 MUX/DEMUX