IDT74CBTLV16212PAG [IDT]

LOW-VOLTAGE 24-BIT BUS EXCHANGE SWITCH; 低电压24位总线交换开关


型号：	IDT74CBTLV16212PAG
厂家：	INTEGRATED DEVICE TECHNOLOGY
描述：	LOW-VOLTAGE 24-BIT BUS EXCHANGE SWITCH 低电压24位总线交换开关总线驱动器总线收发器开关逻辑集成电路光电二极管
文件：	总5页 (文件大小：72K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

IDT74CBTLV16212

INDUSTRIALTEMPERATURERANGE

LOW-VOLTAGE24-BITBUSEXCHANGESWITCH

LOW-VOLTAGE 24-BIT

BUS EXCHANGE SWITCH

IDT74CBTLV16212

DESCRIPTION:

FEATURES:

The CBTLV16212 provides a set of 24 high-speed switches for bus

exchanging and switching. The device has low ON resistance, resulting

in under 250ps propagation delay through the switch. The CBTLV16212

operates as a single 24-bit bus switch or as a 12-bit bus exchanger, which

provides data exchanging between the four signal ports through the data

select (S0-S2) pins.

• 5Ω A/B bi-directional switch

• Isolation Under Power-Off Conditions

• Over-voltage tolerant

• Latch-up performance exceeds 100mA

• VCC = 2.3V - 3.6V, normal range

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

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

• Available in SSOP, TSSOP, and TVSOP packages

The CBTLV16212 has the break-before-make feature, which allows

zero current when switching between ports B1 and B2.

APPLICATIONS:

• 3.3V High Speed Bus Switching and Bus Isolation

FUNCTIONALBLOCKDIAGRAM

SIMPLIFIEDSCHEMATIC,EACH

SWITCH

1A1

1B1

1A2

1B2

12A1

12B1

12A2

12B2

FLOW CONTROL

CIRCUITRY

TheIDTlogoisaregisteredtrademarkofIntegratedDeviceTechnology,Inc.

INDUSTRIAL TEMPERATURE RANGE

AUGUST 2002

2002 Integrated Device Technology, Inc.

DSC-5889/5

IDT74CBTLV16212

INDUSTRIALTEMPERATURERANGE

LOW-VOLTAGE24-BITBUSEXCHANGESWITCH

ABSOLUTEMAXIMUMRATINGS⁽¹⁾

PINCONFIGURATION

Symbol Description

Max.

–0.5to4.6

128

Unit

1A1

1A2

2A1

2A2

3A1

3A2

GND

4A1

4A2

5A1

5A2

6A1

6A2

7A1

7A2

V^CC

VCC

SupplyVoltageRange

InputVoltageRange

1B1

1B2

2B1

2B2

3B1

GND

3B2

4B1

4B2

5B1

5B2

6B1

6B2

7B1

7B2

8B1

GND

8B2

9B1

9B2

10B1

10B2

11B1

11B2

12B1

12B2

ContinuousChannelCurrent

Input Clamp Current, VI/O < 0

StorageTemperatureRange

°C

IIK

–50

TSTG

–65to+150

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.

PINDESCRIPTION

Pin Names

Description

DataSelect

xAx

PortAInputsorOutputs

PortBInputsorOutputs

xBx

FUNCTIONTABLE⁽¹⁾

8A1

GND

8A2

9A1

9A2

10A1

10A2

11A1

11A2

12A1

12A2

Inputs

Inputs/Outputs

Operation

Disconnect

A1 port = B1 port

A1 port = B2 port

A2 port = B1 port

A2 port = B2 port

Disconnect

A1 port = B1 port

A2 port = B2 port

A1 port = B2 port

A2 port = B1 port

SSOP/ TSSOP/ TVSOP

TOP VIEW

NOTE:

1. H = HIGH Voltage Level

= LOW Voltage Level

Z = High-Impedance

OPERATINGCHARACTERISTICS⁽¹⁾

Symbol

Parameter

Test Conditions

Min.

2.3

1.7

Max.

3.6

—

Unit

VCC

SupplyVoltage

VIH

High-LevelControlInputVoltage

Low-LevelControlInputVoltage

OperatingFree-AirTemperature

VCC = 2.3V to 2.7V

VCC = 2.7V to 3.6V

VCC = 2.3V to 2.7V

VCC = 2.7V to 3.6V

—

V^IL

—

0.7

0.8

+85

—

–40

°C

NOTE:

1. All unused control inputs of the device must be held at VCC or GND to ensure proper device operation.

IDT74CBTLV16212

INDUSTRIALTEMPERATURERANGE

LOW-VOLTAGE24-BITBUSEXCHANGESWITCH

DCELECTRICALCHARACTERISTICSOVEROPERATINGRANGE

FollowingConditionsApplyUnlessOtherwiseSpecified:

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

Symbol

VIK

Parameter

Test Conditions

Min.

—

Typ.⁽¹⁾

—

Max.

–1.2

±1

Unit

ControlInputs, DataI/O

ControlInputs

Data I/O

VCC = 3V, II = –18mA

VCC = 3.6V, VI = VCC or GND

VCC = 3.6V, VO = 0V or 3.6V switch disabled

VCC = 0V, VI or VO = 0V or 3.6V

VCC = 3.6V, IO = 0, VI = VCC or GND

VCC = 3.6V, one input at 3V, other inputs at VCC or GND

VI = 3V or 0

µA

IOZ

IOFF

ICC

300

—

(2)

∆ICC

ControlInputs

CIO(OFF)

VO = 3V or 0 (switch off)

13.5

Max. at VCC = 2.3V

Typ. at VCC = 2.5V

VI = 0

IO = 64mA

IO = 24mA

IO = 15mA

IO = 64mA

IO = 24mA

IO = 15mA

(3)

RON

VI = 1.7V

VI = 0

Ω

VCC = 3V

VI = 2.4V

NOTES:

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

2. The increase in supply current is attributable to each input that is at the specified voltage level rather than VCC or GND.

3. This is measured by the voltage drop between the A and B terminals at the indicated current through the switch.

SWITCHINGCHARACTERISTICS

V^CC= 2.5V ± 0.2V

VCC = 3.3V ± 0.3V

Min. Max.

Symbol

Parameter

Min.

—

Max.

Unit

(1)

tPD

PropagationDelay

A to B or B to A

PropagationDelay

S to A or B

0.15

—

0.25

8.8

8.6

8.8

tPD

tEN

tDIS

11.1

10.9

8.7

OutputEnableTime

S to A or B

OutputDisableTime

S to A or B

NOTE:

1. The propagation delay is the calculated RC time constant of the typical on-state resistance of the switch and the specified load capacitance when driven by an ideal voltage source

(zero output impededance).

IDT74CBTLV16212

INDUSTRIALTEMPERATURERANGE

LOW-VOLTAGE24-BITBUSEXCHANGESWITCH

TEST CIRCUITS AND WAVEFORMS

TESTCONDITIONS

VCC⁽¹⁾=3.3V±0.3V

VCC⁽²⁾=2.5V±0.2V

Unit

VIH

Symbol

VLOAD

VIH

SAME PHASE

INPUT TRANSITION

2 x Vcc

Vcc

tPHL

tPLH

VOH

VOL

OUTPUT

1.5

300

Vcc / 2

150

VLZ

VIH

VHZ

150

OPPOSITE PHASE

INPUT TRANSITION

Propagation Delay

VLOAD

Open

GND

VCC

DISABLE

ENABLE

VIH

CONTROL

INPUT

500Ω

tPZL

tPLZ

VIN

VOUT

(1, 2)

Pulse

VLOAD/2

D.U.T.

VLOAD/2

OUTPUT

NORMALLY

LOW

Generator

SWITCH

CLOSED

VOL + VLZ

VOL

500Ω

tPHZ

tPZH

VOH

VOH -VHZ

OUTPUT

NORMALLY

HIGH

SWITCH

OPEN

Test Circuits for All Outputs

NOTE:

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

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

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.

SWITCHPOSITION

Test

tPLZ/tPZL

tPHZ/tPZH

t^PD

Switch

VLOAD

GND

Open

IDT74CBTLV16212

INDUSTRIALTEMPERATURERANGE

LOW-VOLTAGE24-BITBUSEXCHANGESWITCH

ORDERINGINFORMATION

CBTLV

XXX

IDT

Temp. Range

Device Type Package

Shrink Small Outline Package

PAG

Thin Shrink Small Outline Package

TSSOP - Green

Thin Very Small Outline Package

16212

Low-Voltage 24-Bit Bus Exchange Switch

–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

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