74HCT540 - Octal buffer/line driver
74HCT540 Features
* Wide supply voltage range from 2.0 V to 6.0 V
* CMOS low power dissipation
* High noise immunity
* Latch-up performance exceeds 100 mA per JESD 78 Class II Level B
* Inverting outputs
* Input levels:
* For 74HC540: CMOS level
* For 74