NC7WB3306K8X_NL [FAIRCHILD]

Bus Driver, CBT/FST/QS/5C/B Series, 2-Func, 1-Bit, True Output, CMOS, PDSO8, 3.10 MM, MO-187CA, US-8;


型号：	NC7WB3306K8X_NL
厂家：	FAIRCHILD SEMICONDUCTOR
描述：	Bus Driver, CBT/FST/QS/5C/B Series, 2-Func, 1-Bit, True Output, CMOS, PDSO8, 3.10 MM, MO-187CA, US-8 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10页 (文件大小：186K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

May 2000

Revised December 2005

NC7WB3306

2-Bit Low Power Bus Switch

General Description

Features

The NC7WB3306 is a 2-bit ultra high-speed CMOS FET bus

switch with TTL-compatible active LOW control inputs. The low

On Resistance of the switch allows inputs to be connected to

outputs with minimal propagation delay and without generating

additional ground bounce noise. The device is organized as a 2-

bit switch with independent bus enable (OE) controls. When OE

is LOW, the switch is ON and Port A is connected to Port B.

When OE is HIGH, the switch is OPEN and a high-impedance

state exists between the two ports. Control inputs tolerate volt-

Space saving US8 surface mount package

MicroPak Pb-Free leadless package

Typical 3 switch resistance at 5.0V V

Minimal propagation delay through the switch

Power down high impedance input/output

Zero bounce in flow through mode.

ages up to 5.5V independent of V

TTL compatible active LOW control inputs

Control inputs are overvoltage tolerant

Ordering Code:

Product

Order

Package Code

Package Description

Supplied As

Number

Number Top Mark

NC7WB3306K8X MAB08A

WB06

8-Lead US8, JEDEC MO-187, Variation CA 3.1mm Wide 3k Units on Tape and Reel

Pb-Free 8-Lead MicroPak, 1.6 mm Wide 5k Units on Tape and Reel

NC7WB3306L8X MAC08A

Pb-Free package per JEDEC J-STD-020B.

MicroPak is a trademark of Fairchild Semiconductor Corporation.

DS500377

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Logic Symbol

Connection Diagrams

(Top View)

Pin Descriptions

Pin One Orientation Diagram

Pin Name

Description

Bus A

Bus B

Bus Enable Input

AAA represents Product Code Top Mark - see ordering code

Function Table

Note: Orientation of Top Mark determines Pin One location. Read the top product

code mark left to right, Pin One is the lower left pin (see diagram).

Bus Enable Input OE

Function

B Connected to A

Disconnected

Pad Assignments for MicroPak

HIGH Logic Level

LOW Logic Level

(Top Through View)

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Absolute Maximum Ratings(Note 1)

Recommended Operating

Conditions ^{(Note 3)}

Supply Voltage (V

)

0.5V to 7.0V

DC Switch Voltage (VS)

Supply Operating (V

)

4.0V to 5.5V

0V to 5.5V

DC Output Voltage (V ) (Note 2)

Control Input Voltage (V

)

DC Input Diode Current

Switch Input Voltage (V

)

0V to 5.5V

(I ) V

50 mA

128 mA

Output Voltage (V

)

0V to 5.5V

OUT

DC Output (I

) Current

OUT

Operating Temperature (T )

40 C to 85 C

DC V or Ground Current (I /GND)

100 mA

Input Rise and Fall Time (t , t )

Storage Temperature Range (T

)

65 C to 150 C

150 C

STG

Control Input

Switch I/O

0 ns/V to 5 ns/V

0 ns/V to DC

250 C/W

Junction Lead Temperature under Bias (T )

Lead Temperature (T )

Thermal Resistance (

)

(Soldering, 10 seconds)

260 C

Power Dissipation (P ) @ 85 C

250 mW

Note 1: The “Absolute Maximum Ratings” are those values beyond which the safety

of the device cannot be guaranteed. The device should not be operated at these lim-

its. The parametric values defined in the Electrical Characteristics tables are not

guaranteed at the absolute maximum ratings. The “Recommended Operating Condi-

tions” table will define the conditions for actual device operation.

Note 2: The input and output negative voltage ratings may be exceeded if the input

and output diode current ratings are observed.

Note 3: Unused logic inputs must be held HIGH or LOW. They may not float.

DC Electrical Characteristics

40 C to 85 C

Symbol

Parameter

Clamp Diode Voltage

Units

Conditions

(V)

4.5

Min

Typ

Max

1.2

18 mA

HIGH Level Input Voltage

LOW Level Input Voltage

HIGH Level Output Voltage

Input Leakage Current

Switch OFF Leakage Current

Switch On Resistance

(Note 4)

4.0 to 5.5

4.5 to 5.5

5.5

2.0

0.8

see Figure 3

1.0

5.5V

5.5

A, B,

0V, I

OFF

4.5

3.0

7.0

64 mA

30 mA

4.5

7.0

0V, I

4.5

6.0

15.0

20.0

3.0

2.4V, I

15 mA

4.0

10.0

Quiescent Supply Current

5.5

or GND,

OUT

Increase in I per Input

5.5

1.0

2.5

3.4V, I

(Note 5)

Control Input Only

Note 4: Measured by the voltage drop between A and B pins at the indicated current through the switch. On Resistance is determined by the lower of the voltages on the two (A

or B) pins.

Note 5: Per TTL driven input (V

3.4V, control input only). A and B pins do not contribute to I

CC.

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AC Electrical Characteristics

40 C to 85 C

50 pF, RU RD 500

Symbol

Parameter

Units

Conditions

Figure

(V)

Min

Typ

Max

Number

Propagation Delay Bus-to-Bus

(Note 6)

4.0 to 5.5

0.25

OPEN

Figures

1, 2

PHL

PLH

Output Enable Time

4.5 to 5.5

4.0

0.8

2.5

3.0

3.1

2.9

4.2

4.6

4.8

4.4

7V for t

0V for t

7V for t

0V for t

Figures

1, 2

PZL

PZH

PLZ

PHZ

Output Disable Time

4.5 to 5.5

4.0

Figures

1Figure 2

PLZ

PHZ

Note 6: This parameter is guaranteed. The bus switch contributes no propagation delay other than the RC delay of the typical On Resistance of the switch and the 50 pF load

capacitance, when driven by an ideal voltage source (zero output impedance). The specified limit is calculated on this basis.

Capacitance

Symbol

Parameter

Control Pin Input Capacitance

Typ

Max

Units

Conditions

2.5

(OFF)

(ON)

Port OFF Capacitance

Switch ON Capacitance

6.0

5.0V OE

5.0V, OE 0V

I/O

12.0

AC Loading and Waveforms

Input driven by 50 source terminated in 50

includes load and stray capacitance.

Input PRR 1.0 MHz t

500 ns.

FIGURE 1. AC Test Circuit

FIGURE 2. AC Waveforms

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DC Characteristics

FIGURE 3. Typical High Level Output Voltage vs. Supply Voltage

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Tape and Reel Specification

TAPE FORMAT for US8

Package

Tape

Number

Cavity

Cover Tape

Designator

Section

Leader (Start End)

Carrier

Cavities

125 (typ)

250

Status

Empty

Filled

Status

Sealed

K8X

Trailer (Hub End)

75 (typ)

Empty

TAPE DIMENSIONS inches (millimeters)

TAPE FORMAT for MicroPak

Package

Tape

Number

Cavity

Cover Tape

Designator

Section

Leader (Start End)

Carrier

Cavities

125 (typ)

250

Status

Empty

Filled

Status

Sealed

L8X

Trailer (Hub End)

75 (typ)

Empty

TAPE DIMENSIONS inches (millimeters)

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REEL DIMENSIONS inches (millimeters)

Tape Size

7.0

0.059

0.512

0.795

2.165

0.567

(14.40)

0.331 0.059/ 0.000

W1 0.078/ 0.039

8 mm

(177.8)

(1.50)

(13.00) (20.20) (55.00)

(8.40 1.50/ 0.00)

(W1 2.00/ 1.00)

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Physical Dimensions inches (millimeters) unless otherwise noted

8-Lead US8, JEDEC MO-187, Variation CA 3.1mm Wide

Package Number MAB08A

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Physical Dimensions inches (millimeters) unless otherwise noted (Continued)

Pb-Free 8-Lead MicroPak, 1.6 mm Wide

Package Number MAC08A

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DISCLAIMER

FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY

PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY

ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT

CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.

LIFE SUPPORT POLICY

FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES

OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION

As used herein:

provided in the labeling, can be reasonably expected to

result in significant injury to the user.

1. Life support devices or systems are devices or systems

which, (a) are intended for surgical implant into the body, or

(b) support or sustain life, or (c) whose failure to perform

when properly used in accordance with instructions for use

2. A critical component is any component of a life support

device or system whose failure to perform can be reason-

ably expected to cause the failure of the life support device

or system, or to affect its safety or effectiveness.

PRODUCT STATUS DEFINITIONS

Definition of terms

Datasheet Identification Product Status

Definition

Advance Information

Formative or In Design This datasheet contains the design specifications for product develop-

ment. Specifications may change in any manner without notice.

Preliminary

First Production

Full Production

Not In Production

This datasheet contains preliminary data, and supplementary data will

be published at a later date. Fairchild Semiconductor reserves the right

to make changes at any time without notice in order to improve design.

No Identification Needed

Obsolete

This datasheet contains final specifications. Fairchild Semiconductor

reserves the right to make changes at any time without notice in order

to improve design.

This datasheet contains specifications on a product that has been dis-

continued by Fairchild Semiconductor. The datasheet is printed for ref-

erence information only.

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