Bus Transceivers | MC74LCX245

Octal Transceiver, CMOS, Low Voltage

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Overview

The MC74LCX245 is a high performance, non-inverting octal transceiver operating from a 2.0 to 5.5V supply. High impedance TTL compatible inputs significantly reduce current loading to input drivers while TTL compatible outputs offer improved switching noise performance. A VI specification of 5.5V allows MC74LCX245 inputs to be safely driven from 5V devices. The MC74LCX245 is suitable for memory address driving and all TTL level bus oriented transceiver applications.

Current drive capability is 24mA at both A and B ports. The Transmit/Receive (T/Rbar) input determines the direction of data flow through the bi-directional transceiver. Transmit (active-HIGH) enables data from A ports to B ports; Receive (active-LOW) enables data from B to A ports. The Output Enable input, when HIGH, disables both A and B ports by placing them in a HIGH Z condition.

  • Designed for 2.0 to 5.5V VCC Operation
  • 5V Tolerant Interface Capability With 5V TTL Logic
  • Supports Live Insertion and Withdrawal
  • IOFF Specification Guarantees High Impedance When VCC = 0V
  • LVTTL Compatible
  • LVCMOS Compatible
  • 24mA Balanced Output Sink and Source Capability
  • Near Zero Static Supply Current in All Three Logic States (10µA) Substantially Reduces System Power Requirements
  • Latchup Performance Exceeds 500mA
  • ESD Performance: Human Body Model >2000V; Machine Model >200V PIN
  • Pb-Free Packages

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CAD Models

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Package Type

Case Outline

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Channels

Output

VCC Min (V)

VCC Max (V)

tpd Max (ns)

IO Max (mA)

Pricing ($/Unit)

MC74LCX245MNTWG

Active

CAD Model

Pb

A

H

P

QFN-20

485AA

1

260

REEL

3000

N

8

CMOS

2

3.6

7

24

$0.3723

More Details

MC74LCX245DWR2G

Active

CAD Model

Pb

A

H

P

SOIC-20W

751D-05

3

260

REEL

1000

N

8

CMOS

2

3.6

7

24

$0.464

More Details

MC74LCX245DTG

Active

CAD Model

Pb

A

H

P

TSSOP-20

9.48

1

260

TUBE

75

N

8

CMOS

2

3.6

7

24

$0.3903

More Details

MC74LCX245DTR2G

Active

CAD Model

Pb

A

H

P

TSSOP-20

9.48

1

260

REEL

2500

N

8

CMOS

2

3.6

7

24

$0.338

More Details

MC74LCX245DWG

Active

CAD Model

Pb

A

H

P

SOIC-20W

751D-05

3

260

TUBE

38

N

8

CMOS

2

3.6

7

24

$0.4667

More Details

NLV74LCX245DTR2G

Lifetime

CAD Model

Pb

A

H

P

TSSOP-20

9.48

1

260

REEL

2500

Y

8

3-State

2

3.6

7

24

$0.3839

More Details

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