This is a Tiny-Logic serie in SOT23 SMD package (one gate). Supply voltage: 2...6V. The CDxxx serie can work 3...15V, but the package contain four gates. If you need only one gate, the inputs of unused gates connect to GND.
CD 40106=74C14
CD 4071 = 74 HC 32
The "S" is part of Nat Semis' numbering system (it doesn't mean Shottky). Use the 74HC14 (6)and 74HC32 (4) without worry. The older "C" parts behave like the CD4000 series (slow prop delays, wide supply range). Propagation delay increases as supply voltage decreases, and as temperature goes up. The "HC" parts work from 2 - 6 volts. The "VHC" parts have lower propagation delays, noise immunity is good, and ground bounce is low. Use them if you can find them. - CAL