74FST3245DWR2 datasheet(1/8 Pages) ONSEMI

部件名	74FST3245DWR2

功能描述	8-Bit Bus Switch

PDF	8 Pages

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制造商	ONSEMI [ON Semiconductor]

网页	http://www.onsemi.com

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1 / 8 page

August, 2001 – Rev. 0

1

Publication Order Number:

74FST3245/D

74FST3245

8-Bit Bus Switch

The ON Semiconductor 74FST3245 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. Port A is connected to Port B

when OE is low. If OE is high, the switch is high Z.

• 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 QS3245, FST3245, CBT3245

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

NC

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

L

H

Input OE

Function

Connect

Disconnect

TRUTH TABLE

2

19

9

18

11

OE

Figure 2. Logic Diagram

A0

A7

B0

B7

Description

PIN NAMES

OE1, OE2

1A, 2A

http://onsemi.com

Device

Package

Shipping

ORDERING INFORMATION

74FST3245DW

SO–20

38 Units/Rail

74FST3245DWR2

SO–20

74FST3245DT

TSSOP–20

1000 Units/Reel

75 Units/Rail

74FST3245DTR2

TSSOP–20

2500 Units/Reel

74FST3245QS

QSOP–20

55 Units/Rail

74FST3245QSR

QSOP–20

2500 Units/Reel

TSSOP–20

DT SUFFIX

CASE 948E

SO–20

DW SUFFIX

CASE 751D

20

MARKING

DIAGRAMS

Bus Switch Enables

Bus A

1B, 2B

Bus B

20

1

FST3245

AWLYYWW

1

20

1

FST

3245

ALYW

A

= Assembly Location

L, WL

= Wafer Lot

Y

= Year

W, WW = Work Week

QSOP–20

QS SUFFIX

CASE 492A

1

20

FST3245

AWLYWW

20

1

类似零件编号 - 74FST3245DWR2

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ON Semiconductor	74FST3245DWR2	189Kb / 6P	8?묪it Bus Switch June, 2006 ??Rev. 2

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类似说明 - 74FST3245DWR2

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