Manufacturer	Part Number	Description
BDTIC	74LS140	LSTTL Dual 4-input NAND
BDTIC	54LS140	LSTTL Dual 4-input NAND
BDTIC	54LS240	LSTTL eight-Buffer / Bus Driver
BDTIC	74LS240	LSTTL eight-Buffer / Bus Driver
BDTIC	54S138	STTL type 3-to-8 line decoder/demodulator