Product Descriptions

The HEF4532B is an 8-input priority encoder with eight active HIGH priority inputs (I0 to I7), three active HIGH outputs (O0 to O2), an active HIGH enable input (Ein), an active HIGH enable output (Eout) and an active HIGH group select output (GS).

Data is accepted on inputs I0 to I7. The binary code corresponding to the highest priority input (I0 to I7) which is HIGH, is generated on O0 to O2 if Ein is HIGH. Input I7 is assigned the highest priority. GS is HIGH when one or more priority inputs and Ein are HIGH. Eout is HIGH when I0 to I7 are LOW and Ein is HIGH. Ein, when LOW, forces all outputs (O0 to O2, GS, Eout) LOW.

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