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HD74LVCZ245A - Octal Bidirectional Transceivers with 3-state Outputs

Description

The HD74LVCZ245A has eight buffers with three state outputs in a 20 pin package.

When (T / R ) is high, data flows from the A inputs to the B outputs, and when (T / R ) is low, data flows from the B inputs to the A outputs.

A and B bus are separated by making enable input (OE) high level.

Features

  • VCC = 2.7 to 5.5 V.
  • All inputs VIH (Max) = 5.5 V (@VCC = 0 to 5.5 V).
  • All inputs / outputs V I / O (Max) = 5.5 V (@V CC = 0 V or output off state).
  • Typical VOL ground bounce < 0.8 V (@VCC = 3.3 V, Ta = 25°C).
  • Typical VOH undershoot > 2.0 V (@VCC = 3.3 V, Ta = 25°C).
  • High impedance state during power up and power down.
  • Power off disables outputs, permitting live insertion.
  • High output current ±24 mA (@V CC = 3.0 to 5.5 V) H.

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Full PDF Text Transcription

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HD74LVCZ245A Octal Bidirectional Transceivers with 3–state Outputs ADE-205-228A (Z) 2nd. Edition February 1999 Description The HD74LVCZ245A has eight buffers with three state outputs in a 20 pin package. When (T / R ) is high, data flows from the A inputs to the B outputs, and when (T / R ) is low, data flows from the B inputs to the A outputs. A and B bus are separated by making enable input (OE) high level. When V CC is between 0 and 1.5 V, the device is in the high impedance state during power up or power down. Low voltage and high speed operation is suitable at battery drive product (note type personal computer) and low power consumption extends the life of a battery for long time operation. Features • VCC = 2.7 to 5.5 V • All inputs VIH (Max) = 5.5 V (@VCC = 0 to 5.
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