ree output signals. They also have a greater noise margin than conventional inverters. ORDERING INFORMATION TA PACKAGE† ORDERABLE PART NUMBER TOP-SIDE MARKING PDIP − N Tube SN74ACT14N SN74ACT14N SOIC − D Tube Tape and reel SN74ACT14D SN74ACT14DR ACT14 −40°C to 85°C SOP − NS SSOP − DB .