Analysis of information sources in references of the Wikipedia article "Logic level" in English language version.
Parametric limits are guaranteed for VDD of 5V, 10V, and 15V.
Technical Comparison of AHC / HC / AC (CMOS I/O) and AHCT / HCT / ACT (TTL I/O) Logic Families
Logic Voltage Graph (page4)
Parametric limits are guaranteed for VDD of 5V, 10V, and 15V.
Technical Comparison of AHC / HC / AC (CMOS I/O) and AHCT / HCT / ACT (TTL I/O) Logic Families
Logic Voltage Graph (page4)