Part Number : 74LS140 Function : LSTTL Dual 4-input NAND Maker : http://www.bdtic.com/ Pinouts : Description : Datasheet PDF Download : Others datasheet of same file : 54LS140, 74140 PDF 2021/03/27 13:52 2021/03/27 13:52 Posted 2021/03/27 13:52