Datasheet > 74LVCH574ASO8

74LVCH574ASO8

更新时间： 2023-03-15 00:00:00

品牌	Logo	应用领域
艾迪悌 - IDT		/
页数	文件大小	规格书
6页	63K
描述
SOIC-20, Reel

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74LVCH574ASO8 数据手册

IDT74LVCH574A

INDUSTRIALTEMPERATURERANGE

3.3VCMOSOCTALEDGE-TRIGGEREDD-TYPEFLIP-FLOP

3.3V CMOS OCTAL EDGE-

TRIGGERED D-TYPE FLIP-FLOP

IDT74LVCH574A

WITH 3-STATE OUTPUTS, 5 VOLT

TOLERANT I/O AND BUS-HOLD

DESCRIPTION:

FEATURES:

The LVCH574A octal edge-triggered D-type flip-flop is built using ad-

• 0.5 MICRON CMOS Technology

vanceddual-metalCMOStechnology. Thedevicefeatures3-stateoutputs

designed specifically for driving highly capacitive or relatively low-imped-

ance loads. The LVCH574A is particularly suitable for implementing buffer

registers, input-output (I/O) ports, bidirectional bus drivers, and working

registers.

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

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

• VCC = 3.3V ± 0.3V, Normal Range

• VCC = 2.7V to 3.6V, Extended Range

• CMOS power levels (0.4µ W typ. static)

• Rail-to-rail output swing for increased noise margin

• All inputs, outputs, and I/O are 5V tolerant

• Supports hot insertion

Onthepositivetransitionoftheclock(CLK)input, theQoutputsaresetto

the logic levels at the data (D) inputs.

Abufferedoutput-enable(OE)inputcanbeusedtoplacetheeightoutputs

in either a normal logic state (high or low logic levels) or a high-impedance

state.Inthehigh-impedancestate,theoutputsneitherloadnordrivethebus

linessignificantly. OEdoesnotaffecttheinternaloperationsoftheflip-flops.

Old data can be retained or new data can be entered while the outputs are

inthehigh-impedancestate.

The LVCH574A has been designed with a ±24mA output driver. This

driveriscapableofdrivingamoderatetoheavyloadwhilemaintainingspeed

performance.

Inputs can be driven from either 3.3V or 5V devices. This feature allows

theuseofthisdeviceasatranslatorinamixed3.3V/5Vsystemenvironment.

The LVCH574A has “bus-hold” which retains the inputs’ last state

whenevertheinputgoestoahighimpedance.This preventsfloatinginputs

and eliminates the need for pull-up/down resistors.

• Available in SOIC, SSOP, QSOP, and TSSOP packages

DRIVE FEATURES:

• High Output Drivers: ±24mA

• Reduced system switching noise

APPLICATIONS:

• 3.3V high speed systems

• 3.3V and lower voltage computing systems

FUNCTIONALBLOCKDIAGRAM

CLK

¹D

TO SEVEN OTHER CHANNELS

TheIDTlogoisaregisteredtrademarkofIntegratedDeviceTechnology,Inc.

INDUSTRIAL TEMPERATURE RANGE

AUGUST 1999

DSC-4935/1

12 3 4 5 6

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