The SN54125, SN54126, SN74125, SN74126, and SN54LS.
Texas Instruments
SN74125 - QUADRUPLE BUS BUFFERS
The SN54125, SN54126, SN74125, SN74126, and SN54LS126A are obsolete and are no longer supplied. SN54125, SN54126, SN54LS125A, SN54LS126A, SN74125, SN.
