74HC646DB

74HCT27DB NXP Semiconductors Triple 3-input NOR gate Rev. 03-7 January 2008 74HCT27D NXP Semiconductors Triple 3-input NOR gate Rev. 03-7 January 2008 74HCT27D NXP Semiconductors Triple 3-input NOR gate December 1990 74HCT27N NXP Semiconductors Triple 3-input NOR gate Rev. 03-7 January 2008 74HCT27N NXP Semiconductors Triple 3-input NOR gate December 1990 74HCT273 NXP Semiconductors Octal D-type flip-flop with reset; positive-edge trigger Rev. 4-10 June 2013 74HCT273 NXP Semiconductors Octal D-type flip-flop with reset; positive-edge trigger September 1993 74HCT27 NXP Semiconductors Triple 3-input NOR gate Rev. 03-7 January 2008