IDT74CBTLV6800PY8 [IDT]

Bus Driver, CBTLV/3B Series, 1-Func, 10-Bit, True Output, CMOS, PDSO24, SSOP-24;


型号：	IDT74CBTLV6800PY8
厂家：	INTEGRATED DEVICE TECHNOLOGY
描述：	Bus Driver, CBTLV/3B Series, 1-Func, 10-Bit, True Output, CMOS, PDSO24, SSOP-24 驱动光电二极管逻辑集成电路
文件：	总5页 (文件大小：122K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

IDT74CBTLV6800

LOW-VOLTAGE10-BITBUSSWITCHWITHPRECHARGEDOUTPUTS

INDUSTRIALTEMPERATURERANGE

LOW-VOLTAGE 10-BIT

IDT74CBTLV6800

BUS SWITCH WITH

PRECHARGED OUTPUTS

DESCRIPTION:

FEATURES:

TheCBTLV6800provides 10-bits ofhigh-speedbus switchingwithlow

on-state resistance of the switch allowing connections to be made with

minimal propagation delay. The device also precharges the B port to a

user-selectable bias voltage (BIASV)tominimize live-insertionnoise.

−

Functionally equivalent to QS3800

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, QSOP, and TSSOP packages

TheCBTLV6800isorganizedasasingle10-bitbusswitchwithasingle

output-enable (OE)input.WhenOEis low,the10-bitbus switchis onand

portAis connectedtoportB. WhenOE is high, the switchis open, anda

highimpedancestateexistsbetweenthetwoports,andportBisprecharged

toBIASVthroughthe equivalentofa 10-kΩ resistor.

−

Toensure the high-impedance state duringpoweruporpowerdown,

OE shouldbe tiedtoVCCthrougha pullupresistor;the minimumvalue of

the resistoris determinedbythe current-sinkingcapabilityofthe driver.

APPLICATIONS:

−

3.3V High Speed Bus Switching and Bus Isolation

FUNCTIONALBLOCKDIAGRAM

SIMPLIFIEDSCHEMATIC,EACH

SWITCH

BIASV

B10

A10

TheIDTlogoisaregisteredtrademarkofIntegratedDeviceTechnology,Inc.

INDUSTRIAL TEMPERATURE RANGE

APRIL 2001

2001 Integrated Device Technology, Inc.

DSC-5739/-

IDT74CBTLV6800

LOW-VOLTAGE10-BITBUSSWITCHWITHPRECHARGEDOUTPUTS

INDUSTRIALTEMPERATURERANGE

ABSOLUTE MAXIMUM RATINGS ⁽¹⁾

PINCONFIGURATION

Symbol

Description

Supply Voltage Range

Max.

Unit

VCC

–0.5 to 4.6

BIASV

Bias Voltage Range, VI

–0.5 to 4.6

128

V^CC

Input Voltage Range

Continuous Channel Current

IIK

Input Clamp Current, , VI/O < 0

Storage Temperature

–50

°C

TSTG

–65 to +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.

SO24-7

SO24-8

SO24-9

A⁵

B⁶

A⁷

FUNCTION TABLE ⁽¹⁾

B¹⁰

BIASV

A¹⁰

GND

Input OE

Inputs/Outputs

A Port = B Port

A Port = Z

B Port = BIASV

SSOP/ QSOP/ TSSOP

TOP VIEW

OPERATING CHARACTERISTICS

Unit

Symbol

Parameter

Test Conditions

Min.

Max.

VCC

Supply Voltage

2.3

3.6

BIASV Bias Voltage

1.3

1.7

VCC

—

VIH

High-Level Control Input Voltage

Low-Level Control Input Voltage

Operating Free-Air Temperature

VCC = 2.3V to 2.7V

VCC = 2.7V to 3.6V

VCC = 2.3V to 2.7V

VCC = 2.7V to 3.6V

—

VIL

—

−40

0.7

0.8

+85

°C

NOTE:

1. All unused control inputs of the device must be held at V^CCor GND to ensure proper device operation.

IDT74CBTLV6800

LOW-VOLTAGE10-BITBUSSWITCHWITHPRECHARGEDOUTPUTS

INDUSTRIALTEMPERATURERANGE

DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE

Following Conditions Apply Unless Otherwise Specified:

Operating Condition: T^A= – 40°C to +85°C

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

VIK

Control Inputs, Data I/O

VCC = 3V, I = −18mA

—

– 1.2

Control Inputs, Data I/O

Data I/O

VCC = 3.6V, VI = VCC or GND

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

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

—

0.25

—

±1

±20

—

300

—

µA

IOZ

IOFF

|I_O|

ICC

_CC= 3V, BIASV = 2.4V, V = 0, OE = V

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

(1)

∆ICC

Control Inputs

VCC = 3.6V, One input at 3V, Other inputs at VCC or GND

VI = 3V or 0

CIO(OFF)

VO = 3V or 0, Switch Off, BIASV = Open, OE = VCC

VCC = 2.3V

VI = 0

II = 64mA

Typ at V_CC= 2.5V

I = 24mA

(2)

VI = 1.7V

VI = 0

II = 15mA

II = 64mA

II = 24mA

II = 15mA

Ω

VCC = 3V

VI = 2.4V

NOTES:

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

2. This is measured by the voltage drop between the A and B terminals at the indicated current through the switch. On-state resistance is determined

by the lower of the voltages of the two (A or B) terminals.

SWITCHING CHARACTERISTICS

V_CC= 2.5V ± 0.2V

V_CC= 3.3V ± 0.3V

Symbol

Parameter

Propagation Delay

Min.

Max.

Min.

Max.

Unit

(1)

t^PD

—

0.15

4.8

5.6

—

0.25

4.5

5.5

A to B or B to A

BIASV = GND

OE to A or B

BIASV = 3V

OE to A or B

BIASV = GND

OE to A or B

BIASV = 3V

OE to A or B

t^PZH

t^PZL

t^PHZ

t^PLZ

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).

IDT74CBTLV6800

LOW-VOLTAGE10-BITBUSSWITCHWITHPRECHARGEDOUTPUTS

INDUSTRIALTEMPERATURERANGE

TEST CIRCUITS AND WAVEFORMS

PROPAGATIONDELAY

TEST CONDITIONS

VIH

(1)

(2)

SAME PHASE

Symbol

VCC = 3.3V ± 0.3V

VCC = 2.5V ± 0.2V

Unit

INPUT TRANSITION

VLOAD

2 xVcc

Vcc

t^PHL

t^PLH

VIH

OUTPUT

1.5

300

VCC/2

150

VOL

t^PHL

t^PLH

VLZ

VHZ

VIH

OPPOSITE PHASE

INPUT TRANSITION

150

TEST CIRCUITS FOR ALL OUTPUTS

ENABLEANDDISABLETIMES

V^LOAD

V^CC

DISABLE

ENABLE

V^IH

V^T

Open

GND

CONTROL

INPUT

500Ω

t^PZL

t^PLZ

V^IN

V^OUT

Pulse^{(1, 2)}

Generator

V^LOAD/2

V^T

D.U.T.

V^LOAD/2

V^{OL +}V^LZ

V^OL

OUTPUT

NORMALLY

LOW

SWITCH

CLOSED

t^PHZ

R^T

tPZH

C^L

V^OH

V^{OH -}V^HZ

OUTPUT

NORMALLY

HIGH

SWITCH

OPEN

V^T

DEFINITIONS:

C^L= Load capacitance: includes jig and probe capacitance.

R^T= Termination resistance: should be equal to Z^OUTof the Pulse

Generator.

NOTE:

1. Diagram shown for input control Enable-LOW and input Control

Disable-HIGH.

NOTES:

1. Pulse Generator for all pulses: Rate ≤ 10MHz; t^F≤ 2.5ns; t^R≤ 2.5ns.

2. Pulse Generator for all pulses: Rate ≤ 10MHz; t^F≤ 2ns; t^R≤ 2ns.

SWITCH POSITION

Test

Switch

LOAD

t^PLZ/t^PZL

GND

Open

t^PHZ/t^PZH

t^PD

IDT74CBTLV6800

LOW-VOLTAGE10-BITBUSSWITCHWITHPRECHARGEDOUTPUTS

INDUSTRIALTEMPERATURERANGE

ORDERINGINFORMATION

CBTLV

XXX

IDT

Temp. Range

Device Type Package

Shrink Small Outline Package (SO20-7)

Quarter-size Small Outline Package (SO20-8)

Thin Shrink Small Outline Package (SO20-9)

6800

Low-Voltage 10-Bit Bus Switch with Precharged Outputs

–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

www.idt.com

for Tech Support:

logichelp@idt.com

(408) 654-6459

IDT74CBTLV6800PY8 [IDT]

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