Octal Buffer/Line Driver with 3-STATE Outputs

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Overview

The VHCT244A is an advanced high speed CMOS octal bus transceiver fabricated with silicon gate CMOS technology. It achieves high speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation. The VHCT244A is a non-inverting 3-STATE buffer having two active-LOW output enables. This device is designed to be used as 3-STATE memory address drivers, clock drivers, and bus oriented transmitter/receivers. Protection circuits ensure that 0V to 7V can be applied to the input and output (Note 1) pins without regard to the supply voltage. These circuits prevent device destruction due to mismatched supply and input/output voltages. This device can be used to interface 5V to 3V systems and two supply systems such as battery back up.

  • This product is general usage and suitable for many different applications.
  • High Speed: tPD = 5.9 ns (typ) at VCC = 5V
  • Power down protection is provided on inputs and outputs
  • Low power dissipation: ICC = 4 µA (max) @ TA = 25°C
  • Pin and function compatible with 74HCT244

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CAD Models

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VCC Min (V)

VCC Max (V)

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74VHCT244AM

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CAD Model

Pb

A

H

P

SOIC-20W

1

260

TUBE

1080

N

Buffer

8

4.5

5.5

5.9

8

Price N/A

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74VHCT244AMTC

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Last Shipments

CAD Model

Pb

A

H

P

TSSOP-20

1

260

TUBE

1825

N

Buffer

8

4.5

5.5

5.9

8

Price N/A

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74VHCT244AMTCX

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Active

CAD Model

Pb

A

H

P

TSSOP-20

1

260

REEL

2500

N

Buffer

8

4.5

5.5

5.9

8

$0.3192

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74VHCT244AMX

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Last Shipments

CAD Model

Pb

A

H

P

SOIC-20W

1

260

REEL

1000

N

Buffer

8

4.5

5.5

5.9

8

Price N/A

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