IDT60LVCR2245ASO [IDT]

3.3V CMOS OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS AND 5 VOLT TOLERANT I/O; 具有三态输出和5V兼容的I / O 3.3V CMOS八路总线收发器


型号：	IDT60LVCR2245ASO
厂家：	INTEGRATED DEVICE TECHNOLOGY
描述：	3.3V CMOS OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS AND 5 VOLT TOLERANT I/O 具有三态输出和5V兼容的I / O 3.3V CMOS八路总线收发器总线收发器输出元件
文件：	总6页 (文件大小：65K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

IDT74LVCR2245A

INDUSTRIALTEMPERATURERANGE

3.3VCMOSOCTALBUSTRANSCEIVERWITH3-STATEOUTPUTS

3.3V CMOS

OCTAL BUS TRANSCEIVER

IDT74LVCR2245A

WITH 3-STATE OUTPUTS

AND 5 VOLT TOLERANT I/O

FEATURES:

DESCRIPTION:

• 0.5 MICRON CMOS Technology

TheLVCR2245Aoctalbustransceiverisbuiltusingadvanceddualmetal

CMOS technology. This device is designed for asynchronous communi-

cationbetweendatabuses. ThedevicetransmitsdatafromtheAbustothe

B bus or from the B bus to the A bus, depending on the logic level at the

direction-control (DIR) input. The output-enable (OE) input can be used to

disable the device so the buses are effectively isolated.

• 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

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

The LVCR2245A has series resistors in the output structure which will

significantly reduce line noise when used with light loads. The driver has

been designed to drive ±12mA at the designated threshold.

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

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

DRIVE FEATURES:

• Balanced Output Drivers: ±12mA (B Port)

• Low switching noise

APPLICATIONS:

• 5V and 3.3V mixed voltage systems

• Data communication and telecommunication systems

FUNCTIONALBLOCKDIAGRAM

DIR

TO SEVEN OTHER CHANNELS

TheIDTlogoisaregisteredtrademarkofIntegratedDeviceTechnology,Inc.

INDUSTRIAL TEMPERATURE RANGE

OCTOBER 1999

DSC-4610/1

IDT74LVCR2245A

3.3VCMOSOCTALBUSTRANSCEIVERWITH3-STATEOUTPUTS

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

DIR

IOUT

DC Output Current

IIK

IOK

Continuous Clamp Current,

VI < 0 or VO < 0

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

Symbol

CIN

Input Capacitance

Output Capacitance

I/O Port Capacitance

4.5

GND

COUT

CI/O

5.5

6.5

NOTE:

SOIC/ SSOP/ QSOP/ TSSOP

TOP VIEW

1. As applicable to the device type.

PINDESCRIPTION

Pin Names

Description

Ax, Bx

DIR

Output Enable Input (Active LOW)

Data Inputs or 3-State Outputs

Direction Control Output

FUNCTIONTABLE⁽¹⁾

Inputs

DIR

Outputs

B Data to A Bus

A Data to B Bus

Isolation

NOTE:

1. H = HIGH Voltage Level

X = Don’t Care

L = LOW Voltage Level

IDT74LVCR2245A

INDUSTRIALTEMPERATURERANGE

3.3VCMOSOCTALBUSTRANSCEIVERWITH3-STATEOUTPUTS

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⁾

VCC = 2.3V to 3.6V

Min.

Max.

—

Unit

VOH

Output HIGH Voltage

IOH = – 0.1mA

IOH = – 4mA

IOH = – 6mA

IOH = – 4mA

IOH = – 8mA

IOH = – 6mA

IOH = – 12mA

IOL = 0.1mA

IOL = 4mA

VCC – 0.2

VCC = 2.3V

VCC = 2.7V

VCC = 3V

1.9

1.7

2.2

—

2.4

—

VOL

OutputLOWVoltage

VCC = 2.3V to 3.6V

VCC = 2.3V

—

0.2

0.4

0.55

0.4

0.6

0.55

0.8

IOL = 6mA

VCC = 2.7V

VCC = 3V

IOL = 4mA

IOL = 8mA

IOL = 6mA

IOL = 12mA

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.

IDT74LVCR2245A

3.3VCMOSOCTALBUSTRANSCEIVERWITH3-STATEOUTPUTS

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

Max.

VCC = 3.3V ± 0.3V

Symbol

Parameter

Min.

Max.

Unit

tPLH

tPHL

PropagationDelay

Ax to Bx or Bx to Ax

OutputEnableTime

OE or DIR to Ax or Bx

OutputDisableTime

OE or DIR to Ax or Bx

OutputSkew⁽²⁾

—

7.3

9.5

8.5

—

1.5

6.3

tPZH

tPZL

—

1.5

1.7

—

8.2

7.8

tPHZ

tPLZ

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.

IDT74LVCR2245A

INDUSTRIALTEMPERATURERANGE

3.3VCMOSOCTALBUSTRANSCEIVERWITH3-STATEOUTPUTS

TESTCIRCUITSANDWAVEFORMS

TESTCONDITIONS

VIH

SAME PHASE

INPUT TRANSITION

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.

IDT74LVCR2245A

3.3VCMOSOCTALBUSTRANSCEIVERWITH3-STATEOUTPUTS

INDUSTRIALTEMPERATURERANGE

ORDERINGINFORMATION

IDT

LVC

XXXX

Temp. Range

Bus-Hold Device Type Package

Small Outline IC (gull wing)

Shrink Small Outline Package

Quarter Size Small Outline Package

Thin Shrink Small Outline Package

R2245A

Octal Bus Transceiver with 3-State Outputs, ±12mA

Blank

No Bus-hold

–40°C to +85°C

CORPORATE HEADQUARTERS

for SALES:

for Tech Support:

2975StenderWay

Santa Clara, CA 95054

800-345-7015 or 408-727-6116

fax: 408-492-8674

www.idt.com

logichelp@idt.com

(408) 654-6459

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