BUY 74HC147D https://www.utsource.net/itm/p/1098229.html
Encoder
Description: The 74HC147D is a high-speed CMOS logic 8-to-3 line encoder fabricated with silicon gate C2MOS technology.
Features:
High speed: tpd = 10 ns (typ.) at VCC = 5 V
Low power dissipation: ICC = 4 μA (max) at Ta = 25 °C
High noise immunity: VNIH = VNIL = 28 % VCC (min)
Balanced propagation delays: tPLH
tPHL
Output drive capability: 10 LSTTL loads
Wide operating voltage range: VCC (opr) = 2 to 6 V
Pin and function compatible with 74LS147
Applications:
Address decoding
Code conversion
Encoding/decoding
Priority encoding/decoding
(For reference only)