HD74HCT643 - Octal Bus Transceivers (with 3-state outputs)

Product Overview

Hitachi Semiconductor

Part number	HD74HCT643
Manufacturer	Hitachi Semiconductor
File Size	52.30 KB
Description	Octal Bus Transceivers (with 3-state outputs)
Datasheet	HD74HCT643 Datasheet
Additional preview pages of the HD74HCT643 datasheet.

Both the HD74HCT640 and the HD74HCT643 have one active low enable input (G ), and a direction control (DIR).

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

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

LSTTL Output Logic Level Compatibility as well as CMOS Output Compatibility High Speed Operation: tpd (A to B) = 14.5 ns typ (CL = 50 pF) High Output Current: Fanout of 15 LSTTL Loads Wide Operating Voltage: VCC = 4.5 to 5.5 V Low Input Current: 1 µA max Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C) Function Table Control Input G L L H DIR L H X Operation HD74HCT640 B data to A bus A data to B bus Isolation HD74HCT6.

HD74HCT1G00 - 2-input NAND Gate (Renesas Technology)
HD74HCT1G08 - 2-input AND Gate (Renesas Technology)
HD74HCT1G32 - High Speed CMOS two input OR gate Using Silicon Gate CMOS Process (Renesas Technology)
HD74HCT1G66 - Analog Switch (Renesas Technology)
HD74HCT238 - 3-to-8-line Decoder/Demultiplexer (Renesas)
HD74HC00 - Quad. 2-input NAND Gates (Renesas)
HD74HC01 - Quad. 2-input NAND Gates (Renesas)
HD74HC02 - Quad. 2-input NOR Gates (Renesas)
HD74HC04 - Hex Inverters (Renesas)
HD74HC05 - Hex Inverters (Renesas)

Other Datasheets by Hitachi Semiconductor

Published: Mar 23, 2005 |