CD4532 – 8 Bit Priority Encoder IC (Original)

Description

CD4532 – 8 Bit Priority Encoder IC

The CD4x Series CD4532 consists of combinational logic that encodes the highest priority input (D7-D0) to a 3-bit binary code. The eight inputs, D7 through D0, each have an assigned priority; D7 is the highest priority and D0 is the lowest. The priority encoder is inhibited when the chip-enable input EIis low. When EIis high, the binary representation of the highest-priority input appears on output lines Q2-Q0, and the group select line GS is high to indicate that priority inputs are present. The enable-out (EO) is high when no priority inputs are present. If any one input is high, EOis low and all cascaded lower-order stages are disabled.

The CD4532 types are supplied in 16-lead hermetic dual-in-line ceramic packages (F3A suffix), 16-lead dual-in-line plastic packages (E suffix), 16-lead small-outline packages (M, M96, MT, and NSR suffixes), and 16-lead thin shrink small-outline packages (PW and PWR suffixes).

Pinout:

Pinout ofCD4532 IC

Applications:

• Priority encoder
• Binary or BCD encoder (keyboard encoding)
• Floating-point arithmetic