Product status link M54HCxxx, M54HCTxxx M54HCxxx,.
54HCT244 - High-Speed CMOS Logic Octal Buffer/Line Drivers
SN54HCT244 - Octal Buffers and Line Driver
54HCT244 - Rad-hard high speed 2 to 6V CMOS logic
MC54HCT244A - Octal 3-State Noninverting Buffer/Line Driver/Line Receiver
CD54HCT244 - High-Speed CMOS Logic Octal Buffer/Line Drivers
M54HCT244 - Rad-hard high speed 2V to 6V CMOS logic