The CD74HC244M is an inverting three-state Buffer has two active-low output enables. The CD74HC244 is high speed CMOS logic buffer has two active-low output enables. It offers high noise immunity of NIL = 30%, NIH = 30% of VCC at VCC = 5V.
Buffered inputs
High-current bus driver outputs
Balanced propagation delay and transition times
Significant power reduction compared to LSTTL logic ICs