IDTQS32862SO [ETC]

BUS SWITCH|CMOS|SOP|24PIN|PLASTIC ; BUS开关| CMOS |专科| 24PIN |塑料\n


型号：	IDTQS32862SO
厂家：	ETC
描述：	BUS SWITCH\|CMOS\|SOP\|24PIN\|PLASTIC BUS开关\| CMOS \|专科\| 24PIN \|塑料\n 开关
文件：	总5页 (文件大小：74K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

IDTQS32862

HIGH-SPEEDCMOS10-BITBUSSWITCHWITHACTIVEENABLES

INDUSTRIALTEMPERATURERANGE

QUICKSWITCH^®PRODUCTS

IDTQS32862

HIGH-SPEED CMOS 10-BIT

BUS SWITCH WITH ACTIVE

HIGH AND LOW ENABLES

DESCRIPTION:

FEATURES:

−

Enhanced N channel FET with no inherent diode to Vcc

Undershoot clamp diodes on all switch and control inputs

Active low and high enable control

25Ω resistors for low noise

Available in SOIC and QSOP packages

The QS32862provides a setoftenhighspeedCMOS,TTLCompatible

bus switches. The switches are controlled by independent active Low

enable (BE) and High enable (BE) controls.

The QS32862 includes internal 25Ω series termination resistors to

reducereflectionnoiseinhighspeedapplications. Whenclosed,theswitch

acts as the source (series)terminationforthe driverconnectedtoit. The

QS32862is idealforswitchingdigitalbuses as wellas hot-plugging, hot-

docking,andvoltage translation.

APPLICATIONS

−

Hot-swapping, hot-docking

Voltage translation (5V to 3.3V)

Power conservation

Capacitance reduction and isolation

Applications requiring Active-High enabling

Clock gating

The QS32862 is characterized for operation at -40°C to +85°C.

Bus isolation

FUNCTIONALBLOCKDIAGRAM

INDUSTRIAL TEMPERATURE RANGE

FEBRUARY 2000

1999 Integrated Device Technology, Inc.

DSC-5723/-

IDTQS32862

HIGH-SPEEDCMOS10-BITBUSSWITCHWITHACTIVEENABLES

INDUSTRIALTEMPERATURERANGE

ABSOLUTE MAXIMUM RATINGS ⁽¹⁾

PINCONFIGURATION

Symbol

Description

Supply Voltage to Ground

DC Switch Voltage VS

Max.

– 0.5 to +7

-3

Unit

(2)

VTERM

(3)

VTERM

(3)

DC Input Voltage VIN

VTERM

VAC

AC Input Voltage (pulse width ≤20ns)

IOUT

PMAX

TSTG

DC Output Current

120

Maximum Power Dissipation

Storage Temperature

0.5

– 65 to +150 °C

SO24-2

SO24-8

NOTES:

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.

2. Vcc Terminals.

3. All terminals except Vcc.

GND

CAPACITANCE

(TA = +25^OC, f = 1.0MHz, VIN = 0V, VOUT = 0V)

SOIC/ QSOP

TOP VIEW

Pins

Typ.

Max. ⁽¹⁾

Unit

Control Inputs

Quickswitch Channels (Switch OFF)

NOTE:

1. This parameter is guaranteed but not production tested.

PIN DESCRIPTION

Pin Names

I/O

Description

Active High Bus Enable

A0 – A9

B0 – B9

I/O

Bus A

Bus B

FUNCTION TABLE⁽¹⁾

A0 – A9

Function

Disconnect

Hi-Z

Disconnect

Connect

B0 – B9

Hi-Z

Disconnect

NOTE:

1. H = HIGH Voltage Level

L = LOW Voltage Level

Z = High-impedence

IDTQS32862

HIGH-SPEEDCMOS10-BITBUSSWITCHWITHACTIVEENABLES

INDUSTRIALTEMPERATURERANGE

DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE

Following Conditions Apply Unless Otherwise Specified:

Industrial: T^A= -40°C to +85°C, V^CC= 5.0V ± 10%

Symbol

Parameter

Input HIGH Voltage

Test Conditions

Min. Typ.⁽¹⁾Max.

Unit

VIH

Guaranteed Logic HIGH for Control Pins

—

0.8

±1

VIL

IIN

Input LOW Voltage

Guaranteed Logic LOW for Control Pins

0V ≤ VIN ≤ Vcc

—

3.7

µA

Ω

Input Leakage Current (Control Inputs)

Off-State Current (Hi-Z)

Switch ON Resistance

Pass Voltage ⁽²⁾

±0.01

IOZ

RON

0V ≤ VOUT ≤ Vcc, Switches OFF

Vcc = Min., VIN = 0V, ION = 30mA

Vcc = Min., VIN = 2.4V, ION = 15mA

VIN = VCC = 5V, IOUT = -5µA

Ω

4.2

NOTES:

1. Typical values are at V^CC= 5.0V, T^A= 25°C.

2. Pass voltage is guaranteed but not production tested.

TYPICAL ON RESISTANCE vs VIN AT VCC = 5V

RON

(ohms)

1.5

2.0

2.5

3.0

3.5

1.0

0.0

0.5

VIN

(Volts)

IDTQS32862

HIGH-SPEEDCMOS10-BITBUSSWITCHWITHACTIVEENABLES

INDUSTRIALTEMPERATURERANGE

POWER SUPPLY CHARACTERISTICS

Symbol

Parameter

Test Conditions⁽¹⁾

VCC = Max., VIN = GND or Vcc, f = 0

(3)

Typ. ⁽²⁾

Max.

Unit

ICCQ

Quiescent Power Supply Current

0.2

µA

∆ICC

Power Supply Current per Control Input HIGH

Dynamic Power Supply Current per MHz⁽⁴⁾

_CC= Max., V = 3.4V , f = 0

—

2.5

ICCD

VCC = Max., A and B pins open,

BE, BE inputs

0.25

mA/MHz

Toggling at 50% Duty Cycle

NOTES:

1. For conditions shown as Min. or Max., use the appropriate values specified under DC Electrical Characteristics.

2. Typical values are at V^CC= 5.0V, T^A= 25°C ambient.

3. Per TLL driven input (VIN = 3.4V, control inputs only). A and B pins do not contribute to ∆Icc

4. This current applies to the control inputs only and represents the current required to switch internal capacitance at the specified frequency. The A

and B inputs generate no significant AC or DC currents as they transition. This parameter is guaranteed but not production tested.

SWITCHING CHARACTERISTICS OVER OPERATING RANGE

T^A= -40°C to +85°C, V^CC= 5.0V ± 10%

Ω

C^LOAD= 50pF, R^LOAD= 500 unless otherwise noted.

Min. ⁽¹⁾

Typ.

Max.

Symbol

tPLH

Parameter

Unit

Data Propagation Delay ^(2,3)

A to B or B to A

—

1.25

tPHL

tPZL

Switch Turn-on Delay

BE or BE to A to B

Switch Turn-off Delay ⁽²⁾

BE or BE to A to B

1.5

—

tPZH

tPLZ

5.5

tPHZ

NOTES:

1. Minimums are guaranteed but not production tested.

2. This parameter is guaranteed but not production tested.

3. The time constant for the switch alone is of the order of 1.25ns for CL = 50pF. The bus switch contributes no propagation delay other than the RC

delay of the ON resistance of the switch and the load capacitance. Since this time constant is much smaller than the rise and fall times of typical

driving signals, it adds very little propagation delay to the system. Propagation delay of the bus switch, when used in a system, is determined by the

driving circuit on the driving side of the switch and its interaction with the load on the driven side.

IDTQS32862

HIGH-SPEEDCMOS10-BITBUSSWITCHWITHACTIVEENABLES

INDUSTRIALTEMPERATURERANGE

ORDERINGINFORMATION

IDTQS

XXXXX

Package

Process

Device Type

Industrial (-40°C to +85°C)

Blank

Small Outline IC (SO24-2)

Quarter-Size Outline Package (SO24-8)

High Speed CMOS 10-Bit Bus Switch with

Active High and Low Enables

32862

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