IDT74LVC623AQ8 [IDT]

Bus Transceiver, LVC/LCX/Z Series, 1-Func, 8-Bit, True Output, CMOS, PDSO20, QSOP-20;


型号：	IDT74LVC623AQ8
厂家：	INTEGRATED DEVICE TECHNOLOGY
描述：	Bus Transceiver, LVC/LCX/Z Series, 1-Func, 8-Bit, True Output, CMOS, PDSO20, QSOP-20 光电二极管逻辑集成电路
文件：	总6页 (文件大小：70K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

IDT74LVC623A

INDUSTRIALTEMPERATURERANGE

3.3VCMOSOCTALTRANSCEIVERWITHDUALENABLE

3.3V CMOS OCTAL

IDT74LVC623A

TRANSCEIVER WITH DUAL

ENABLE, 3-STATE OUTPUTS,

AND 5 VOLT TOLERANT I/O

DESCRIPTION:

FEATURES:

ThisoctaltransceiverisbuiltusingadvanceddualmetalCMOStechnol-

ogy. This high-speed, low power transceiver is ideal for asynchronous

communication between two busses (A and B). The control function

implementationallowsmaximumflexibilityintiming. Thisdeviceallowsdata

transmission from the A bus to the B bus, or from the B bus to the A bus,

dependinguponthelevelsattheenableinputs(OEAB,OEBA). Theenable

inputs can be used to disable the device so that the buses are effectively

isolated. The capability to store data by simultaneous enabling of OEAB

andOEBA. Eachoutputreinforcesitsinputinthistransceiverconfiguration.

Thus, when both control inputs are enabled and all other data sources to

thetwosetsofthebuslinesareathighimpedenceOFF-state, bothsetsof

bus lines will remain at their last states. The 8-bit codes appearing on the

two sets of buses will be identical.

• 0.5 MICRON CMOS Technology

• 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

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

DRIVE FEATURES:

• High Output Drivers: ±24mA

• Reduced system switching noise

The LVC623A has been designed with a ±24mA output driver. This

driver is capable of driving a moderate to heavy load while maintaining

speedperformance.

Allpinscanbedrivenfromeither3.3Vor5Vdevices. Thisfeatureallows

the use of this device as a translator in a mixed 3.3V/5V supply system.

APPLICATIONS:

• 5V and 3.3V mixed voltage systems

• Data communication and telecommunication systems

FUNCTIONALBLOCKDIAGRAM

OEBA

OEAB

TheIDTlogoisaregisteredtrademarkofIntegratedDeviceTechnology,Inc.

INDUSTRIAL TEMPERATURE RANGE

OCTOBER 1999

DSC-5161/1

IDT74LVC623A

3.3VCMOSOCTALTRANSCEIVERWITHDUALENABLE

INDUSTRIALTEMPERATURERANGE

ABSOLUTEMAXIMUMRATINGS⁽¹⁾

PINCONFIGURATION

Symbol

VTERM

TSTG

Description

Terminal Voltage with Respect to GND

Storage Temperature

Max

Unit

–0.5 to +6.5

–65 to +150

–50 to +50

–50

°C

VCC

OEBA

OEAB

IOUT

DC Output Current

IIK

IOK

Continuous Clamp Current,

VI < 0 or VO < 0

A¹

A²

A⁴

ICC

ISS

Continuous Current through each

VCC or GND

±100

NOTE:

1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause

permanent damage to the device. This is a stress rating only and functional operation

of the device at these or any other conditions above those indicated in the operational

sections of this specification is not implied. Exposure to absolute maximum rating

conditions for extended periods may affect reliability.

CAPACITANCE (TA = +25°C, F = 1.0MHz)

Parameter⁽¹⁾

Conditions

VIN = 0V

VOUT = 0V

VIN = 0V

Typ.

Max. Unit

A⁷

Symbol

CIN

Input Capacitance

Output Capacitance

I/O Port Capacitance

4.5

COUT

CI/O

5.5

6.5

GND

NOTE:

1. As applicable to the device type.

SOIC/ SSOP/ QSOP/ TSSOP

TOP VIEW

PINDESCRIPTION

Pin Names

Description

OEBA

OEAB

Output Enable Input A Port (Active LOW)

OutputEnableInputBPort

SideAInputsor3-StateOutputs

SideBInputsor3-StateOutputs

Ground(0V)

GND

VCC

Positive Power Supply Voltage

FUNCTIONTABLE⁽¹⁾

Inputs

Inputs/Outputs

OEAB

OEBA

A = B

Inputs

B = A

A = B

Inputs

B = A

NOTE:

1. H = HIGH Voltage Level

X = Don’t Care

L = LOW Voltage Level

Z = High-Impedance

IDT74LVC623A

INDUSTRIALTEMPERATURERANGE

3.3VCMOSOCTALTRANSCEIVERWITHDUALENABLE

DCELECTRICALCHARACTERISTICSOVEROPERATINGRANGE

FollowingConditionsApplyUnlessOtherwiseSpecified:

Operating Condition: TA = –40°C to +85°C

Symbol

Parameter

Test Conditions

Min.

1.7

Typ.⁽¹⁾

—

Max.

—

Unit

VIH

Input HIGH Voltage Level

VCC = 2.3V to 2.7V

VCC = 2.7V to 3.6V

—

VIL

Input LOW Voltage Level

Input Leakage Current

VCC = 2.3V to 2.7V

VCC = 2.7V to 3.6V

—

0.7

0.8

IIH

IIL

VCC = 3.6V

VI = 0 to 5.5V

—

±5

µA

IOZH

IOZL

High Impedance Output Current

(3-State Output pins)

VCC = 3.6V

VO = 0 to 5.5V

—

±10

IOFF

VIK

Input/Output Power Off Leakage

Clamp Diode Voltage

VCC = 0V, VIN or VO ≤ 5.5V

—

±50

µA

VCC = 2.3V, IIN = –18mA

–0.7

–1.2

Input Hysteresis

VCC = 3.3V

VCC = 3.6V

—

100

—

µA

ICCL

ICCH

ICCZ

Quiescent Power Supply Current

VIN = GND or VCC

3.6 ≤ VIN ≤ 5.5V⁽²⁾

—

500

∆ICC

Quiescent Power Supply Current

Variation

One input at VCC - 0.6V, other inputs at VCC or GND

µA

NOTES:

1. Typical values are at VCC = 3.3V, +25°C ambient.

2. This applies in the disabled state only.

OUTPUTDRIVECHARACTERISTICS

Symbol

Parameter

TestConditions⁽¹⁾

Min.

VCC – 0.2

Max.

—

Unit

VOH

Output HIGH Voltage

VCC = 2.3V to 3.6V

IOH = – 0.1mA

IOH = – 6mA

IOH = – 12mA

VCC = 2.3V

VCC = 2.7V

VCC = 3V

—

1.7

—

2.2

—

2.4

—

VCC = 3V

IOH = – 24mA

IOL = 0.1mA

IOL = 6mA

2.2

—

VOL

OutputLOWVoltage

VCC = 2.3V to 3.6V

VCC = 2.3V

—

0.2

0.4

0.7

0.4

0.55

—

IOL = 12mA

IOL = 24mA

—

VCC = 2.7V

VCC = 3V

—

NOTE:

1. VIH and VIL must be within the min. or max. range shown in the DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE table for the appropriate VCC range.

TA = – 40°C to + 85°C.

IDT74LVC623A

3.3VCMOSOCTALTRANSCEIVERWITHDUALENABLE

INDUSTRIALTEMPERATURERANGE

OPERATING CHARACTERISTICS, VCC = 3.3V ± 0.3V, TA = 25°C

Symbol

Parameter

Test Conditions

Typical

—

Unit

CPD

PowerDissipationCapacitanceperTransceiverOutputsenabled

PowerDissipationCapacitanceperTransceiverOutputsdisabled

CL = 0pF, f = 10Mhz

CPD

—

SWITCHINGCHARACTERISTICS⁽¹⁾

VCC = 2.7V

VCC = 3.3V ± 0.3V

Symbol

tPLH

Parameter

Min.

Max.

Min.

Max.

Unit

PropagationDelay

Ax to Bx, Bx to Ax

OutputEnableTime

OEAB to Bx

1.5

tPHL

tPZH

tPZL

1.5

—

8.6

7.5

8.9

7.5

—

1.5

—

7.6

6.5

7.9

6.5

500

tPHZ

tPLZ

OutputDisableTime

OEAB to Bx

tPZH

tPZL

OutputEnableTime

OEBA to Ax

tPHZ

tPLZ

OutputDisableTime

OEBA to Ax

OutputSkew⁽²⁾

tSK(o)

NOTES:

1. See TEST CIRCUITS AND WAVEFORMS. TA = – 40°C to + 85°C.

2. Skew between any two outputs of the same package and switching in the same direction.

IDT74LVC623A

INDUSTRIALTEMPERATURERANGE

3.3VCMOSOCTALTRANSCEIVERWITHDUALENABLE

TESTCIRCUITSANDWAVEFORMS

VIH

SAME PHASE

INPUT TRANSITION

TESTCONDITIONS

Symbol VCC⁽¹⁾=3.3V±0.3V VCC⁽¹⁾=2.7V VCC⁽²⁾=2.5V±0.2V

Unit

tPHL

tPLH

VOH

VOL

OUTPUT

VLOAD

VIH

2 x Vcc

Vcc

2.7

1.5

300

2.7

1.5

300

tPLH

tPHL

Vcc / 2

150

VIH

OPPOSITE PHASE

INPUT TRANSITION

VLZ

VHZ

150

LVC Link

Propagation Delay

VLOAD

Open

GND

VCC

DISABLE

ENABLE

VIH

CONTROL

INPUT

500Ω

tPZL

tPLZ

VIN

VOUT

(1, 2)

Pulse

D.U.T.

VLOAD/2

Generator

OUTPUT

NORMALLY

LOW

SWITCH

VLOAD

V^OL+VLZ

VOL

500Ω

tPHZ

tPZH

VOH

VOH-VHZ

OUTPUT

NORMALLY

HIGH

SWITCH

GND

LVC Link

Test Circuit for All Outputs

LVC Link

DEFINITIONS:

CL = Load capacitance: includes jig and probe capacitance.

RT = Termination resistance: should be equal to ZOUT of the Pulse Generator.

Enable and Disable Times

NOTE:

1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH.

NOTES:

1. Pulse Generator for All Pulses: Rate ≤ 10MHz; tF ≤ 2.5ns; tR ≤ 2.5ns.

2. Pulse Generator for All Pulses: Rate ≤ 10MHz; tF ≤ 2ns; tR ≤ 2ns.

VIH

DATA

INPUT

SWITCHPOSITION

Test

Switch

V^LOAD

GND

t^SU

VIH

TIMING

INPUT

Open Drain

Disable Low

Enable Low

tREM

ASYNCHRONOUS

CONTROL

Disable High

Enable High

SYNCHRONOUS

CONTROL

All Other Tests

Open

tSU

VIH

LVC Link

Set-up, Hold, and Release Times

INPUT

tPLH1

t^PHL1

V^OH

VOL

LOW-HIGH-LOW

OUTPUT 1

PULSE

tSK (x)

VOH

VOL

HIGH-LOW-HIGH

PULSE

OUTPUT 2

LVC Link

tPLH2

tPHL2

Pulse Width

tSK(x) = tPLH2 - tPLH1 or tPHL2 - tPHL1

LVC Link

Output Skew - tSK(X)

NOTES:

1. For tSK(o) OUTPUT1 and OUTPUT2 are any two outputs.

2. For tSK(b) OUTPUT1 and OUTPUT2 are in the same bank.

IDT74LVC623A

3.3VCMOSOCTALTRANSCEIVERWITHDUALENABLE

INDUSTRIALTEMPERATURERANGE

ORDERINGINFORMATION

IDT

LVC

XXXX

Device Type Package

Temp. Range

Bus-Hold

Small Outline IC (gull wing)

Shrink Small Outline Package

Quarter Size Small Outline Package

Thin Shrink Small Outline Package

623A

Octal Transceiver with Dual Enable, 3-State

Outputs, ±24mA

Blank

No Bus-hold

–40°C to +85°C

CORPORATE HEADQUARTERS

2975StenderWay

Santa Clara, CA 95054

for SALES:

800-345-7015 or 408-727-6116

fax: 408-492-8674

for Tech Support:

logichelp@idt.com

(408) 654-6459

www.idt.com

IDT74LVC623AQ8 [IDT]

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