INDUSTRIALTEMPERATURERANGE

IDT74ALVCH16245

3.3V CMOS 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS

1

MARCH 1999

INDUSTRIAL TEMPERATURE RANGE

The IDT logo is a registered trademark of Integrated Device Technology, Inc.

© 1999 Integrated Device Technology, Inc.

DSC-4697/1

FEATURES:

• 0.5 MICRON CMOS Technology

• ESD > 2000V per MIL-STD-883, Method 3015; > 200V using

machine model (C = 200pF, R = 0)

• CMOS power levels (0.4

µµµµµ W typ. static)

• Rail-to-Rail output swing for increased noise margin

• Available in SSOP, TSSOP, and TVSOP packages

FUNCTIONAL BLOCK DIAGRAM

IDT74ALVCH16245

3.3V CMOS 16-BIT BUS

TRANSCEIVER WITH

3-STATE OUTPUTS

AND BUS-HOLD

DESCRIPTION:

This 16-bit bus transceiver is built using advanced dual metal CMOS

technology.TheALVCH16245isdesignedforasynchronouscommunication

betweendatabuses.Thecontrol-functionimplementationminimizesexternal

timingrequirements.

Thisdevicecanbeusedastwo8-bittransceiversorone16-bittransceiver.

ItallowsdatatransmissionfromtheAbustotheBbusorfromtheBbustothe

A bus, depending on the logic level at the direction-control (DIR) input. The

output-enable(OE)inputcanbeusedtodisablethedevicesothatthebuses

areeffectivelyisolated.

The ALVCH16245 has been designed with a ±24mA output driver. This

driveriscapableofdrivingamoderatetoheavyloadwhilemaintainingspeed

performance.

The ALVCH16245 has “bus-hold” which retains the inputs’ last state

whenevertheinputbusgoestoahighimpedance.Thispreventsfloatinginputs

andeliminatestheneedforpull-up/downresistors.

APPLICATIONS:

• 3.3V high speed systems

• 3.3V and lower voltage computing systems

DRIVE FEATURES:

• High Output Drivers: ±24mA

• Suitable for heavy loads

1

DIR

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

OE

2

DIR

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

OE

1

47

46

44

43

41

40

38

37

12

11

9

8

6

5

3

2

48

24

36

35

33

32

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27

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23

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16

14

13

25