Octal Bidirectional Transceiver with 3-State Inputs/Outputs

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Overview

The MC74AC245/74ACT245 contains eight non-inverting bidirectional buffers with 3-state outputs and is intended for bus-oriented applications. Current sinking capability is 24 mA at both the A and B ports. The Transmit/Receive (T/Rbar) input determines the direction of data flow through the bidirectional transceiver. Transmit (active-HIGH) enables data from A ports to B ports; Receive (active-LOW) enables data from B ports to A ports. The Output Enable input, when HIGH, disables both A and B ports by placing them in a High Z condition.

  • Noninverting Buffers
  • Bidirectional Data Path
  • A and B Outputs Source/Sink 24 mA
  • ACT245 Has TTL Compatible Inputs
  • Pb-Free Packages are Available

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CAD Models

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VCC Min (V)

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tpd Max (ns)

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Reference Price

MC74AC245DTG

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Active

CAD Model

Pb

A

H

P

TSSOP-20

1

260

TUBE

75

N

8

3-State

2

2

6.5

24

$0.4408

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MC74AC245DTR2G

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Active

CAD Model

Pb

A

H

P

TSSOP-20

1

260

REEL

2500

N

8

3-State

2

6

6.5

24

$0.3757

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MC74AC245DWG

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Active

CAD Model

Pb

A

H

P

SOIC-20W

3

260

TUBE

38

N

8

3-State

2

6

6.5

24

$0.4808

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MC74AC245DWR2G

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Active

CAD Model

Pb

A

H

P

SOIC-20W

3

260

REEL

1000

N

8

3-State

2

6

6.5

24

$0.4623

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