CD4532 8 Bit Priority Encoder IC DIP-16 Package

Description

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 EI is low. When EI is 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, EO is 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). Features:- Converts from 1 of 8 to binary Provides cascading feature to handle any number of inputs Group select indicates one or more priority inputs Standardized, symmetrical output characteristics 100% tested for quiescent current at 20 V Maximum input current of 1 µA at 18 V over full package temperature range; 100 nA at 18 V and 25°C Noise margin (full package-temperature range): 0.5 V at VDD = 5 V 1.5 V at VDD = 10 V 1.5 V at VDD = 15 V 5-V, 10-V, and 15-V parametric ratings Meets all requirements of JEDEC Tentative Standard No. 13B, “Standard Specifications for Description o