74HC/HCT643 Octal Bus Transceiver; 3-state; True/inverting

The 74HC/HCT643 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A. The 74HC/HCT643 are octal transceivers featuring true and inverting 3-state bus compatible outputs in both send and receive directions. The '643' features an output enable (OE) input for easy cascading and a send/receive (DIR) for direction control. OE controls the outputs so that the buses are effectively isolated.
By NXP Semiconductors
74HCT643 's Packages74HCT643 's pdf datasheet



74HCT643 Pinout, Pinouts
74HCT643 pinout,Pin out
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