74HC148 – 74148 ( 8 To 3 Line Priority Encoder )

74HC148 8-to-3-Line Priority Encoder

The 74HC148 converts eight input lines into a three-bit encoded output according to input priority. When multiple inputs are asserted, the priority logic selects the highest-priority active input rather than treating every combination as a separate code.

Specifications

• Logic function: 8-to-3 priority encoder.
• Logic family: 74HC.
• Listed supply range: 2–6V.
• Package: 16-pin through-hole DIP.
• Listed package row spacing: 7.62mm.

Using the IC

Follow the truth table for the input, output and enable signal polarities. Use the complete manufacturer part number to confirm the pinout, input thresholds and timing before wiring.

Typical uses include priority selection, encoded input interfaces and digital-logic experiments. Check compatibility when connecting to another logic family, and avoid assuming that standard 74148 or LS-series specifications apply to the HC version.