SN74LVC821A SN74LVC823A SN74LVC827A SN74LVC828A SN74LVC841A SN74LVC861A SN74LVC863A SN74LVC86A SN74LVC86A-EP SN74LVC86A-Q1 SN74LVC8T245 SN74LVC8T245-EP SN74LVC8T245-Q1