From old datasheet system transil TM High Speed CMOS Logic Dual 4-Input Multiplexers 16-CDIP -55 to 125 High Speed CMOS Logic quad 2-Input NAND Gates 14-CDIP -55 to 125 High Speed CMOS Logic 8-Input NAND Gate 14-CDIP -55 to 125 transil Diode(transil二极 transil二极管(transil二极管) transilTM transilTM