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HD74HC643 - Octal Bus Transceivers

This page provides the datasheet information for the HD74HC643, a member of the HD74HC640 Octal Bus Transceivers family.

Description

Each device has an active enable G and a direction control input, DIR.

When DIR is high, data flows from the A inputs to the B outputs.

When DIR is low, data flows from the B inputs to the A outputs.

Features

  • High Speed Operation: tpd = 12 ns typ (CL = 50 pF).
  • High Output Current: Fanout of 15 LSTTL Loads.
  • Wide Operating Voltage: VCC = 2 to 6 V.
  • Low Input Current: 1 µA max.
  • Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C).
  • Ordering Information Part Name Package Type Package Code (Previous Code) Package Abbreviation HD74HC640P DILP-20 pin PRDP0020AC-B (DP-20NEV) P HD74HC640FPEL SOP-20 pin (JEITA) PRSP0020DD-B (FP-20D.

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Datasheet Details

Part number HD74HC643
Manufacturer Renesas Electronics
File Size 131.68 KB
Description Octal Bus Transceivers
Datasheet download datasheet HD74HC643 Datasheet
Additional preview pages of the HD74HC643 datasheet.

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Full PDF Text Transcription

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HD74HC640, HD74HC643 Octal Bus Transceivers (with 3-state outputs) REJ03D0637-0200 (Previous ADE-205-517) Rev.2.00 Mar 30, 2006 Description Each device has an active enable G and a direction control input, DIR. When DIR is high, data flows from the A inputs to the B outputs. When DIR is low, data flows from the B inputs to the A outputs. The HD74HC640 transfers inverted data from one bus to other and the HD74HC643 transfers inverted data from the A bus to the B bus and true data from the B bus to the A bus.
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