PDF document of 132 KB for the HCF4093, the ST version of the 4093 quad two-input NAND gate with Schmitt-trigger inputs.

CD4093B datasheet in PDF format, about 575 KB, covering the CMOS quad two-input NAND gate with Schmitt-trigger inputs.

Datasheet in PDF form for the HEF4093B, a CMOS logic part from the HEF4000 family, best known as a quad two-input NAND gate with Schmitt-trigger inputs.