74FST3345DWR2 datasheet(1/6 Pages) ONSEMI

部件名	74FST3345DWR2

功能描述	8-Bit Bus Switch

PDF	6 Pages

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制造商	ONSEMI [ON Semiconductor]

网页	http://www.onsemi.com

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1 / 6 page

January, 2005 − Rev. 1

1

Publication Order Number:

74FST3345/D

74FST3345

8−Bit Bus Switch

The ON Semiconductor 74FST3345 is an 8−bit, high performance

switch. The device is CMOS TTL compatible when operating between

4 and 5.5 Volts. The device exhibits extremely low RON and adds

nearly zero propagation delay. The device adds no noise or ground

bounce to the system.

The device consists of an 8−bit switch with two Output/Enable pins

(OE and OE).

Features

• R

ON

t 4 W Typical

• Less Than 0.25 ns−Max Delay Through Switch

• Nearly Zero Standby Current

• No Circuit Bounce

• Control Inputs are TTL/CMOS Compatible

• Pin−For−Pin Compatible with QS3345, FST3345, CBT3345

• All Popular Packages: QSOP−20, TSSOP−20, SOIC−20

• All Devices in Package TSSOP are Inherently Pb−Free*

OE

A2

A5

A4

A3

A1

A0

VCC

B1

B4

B3

B2

B0

OE

1

2

3

4

5

6

7

20

19

18

17

16

15

14

Figure 1. 20−Lead Pinout

A6

8

A7

9

GND

10

B5

13

B6

12

B7

11

OE

X

Inputs

H

L

OE

L

X

H

Connect

Function

TRUTH TABLE

Disconnect

9

1

11

OE

Figure 2. Logic Diagram

A7

B7

218

A0

B0

19

OE

*For additional information on our Pb−Free strategy and soldering details, please

download the ON Semiconductor Soldering and Mounting Techniques

Reference Manual, SOLDERRM/D.

Description

PIN NAMES

OE1, OE2

1A, 2A

TSSOP−20

DT SUFFIX

CASE 948E

SOIC−20

DW SUFFIX

CASE 751D

MARKING

DIAGRAMS

Bus Switch Enables

Bus A

1B, 2B

Bus B

20

1

FST3345

AWLYYWW

1

20

1

FST

3345

ALYW

A

= Assembly Location

L, WL

= Wafer Lot

Y

= Year

W, WW = Work Week

QSOP−20

QS SUFFIX

CASE 492A

1

20

FST3345

AWLYWW

20

1

20

1

See detailed ordering and shipping information in the package

dimensions section on page 3 of this data sheet.

ORDERING INFORMATION

http://onsemi.com

类似零件编号 - 74FST3345DWR2

制造商	部件名	数据表	功能描述
ON Semiconductor	74FST3345DWR2	189Kb / 6P	8?묪it Bus Switch June, 2006 ??Rev. 2
ON Semiconductor	74FST3345DWR2	211Kb / 8P	10?묪it Low Power Bus Switch June, 2006 ??Rev. 6

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类似说明 - 74FST3345DWR2

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