4532B

The 4532B is a kind of 8-input priority encoder with eight active HIGH priority inputs (I0-I7), three active HIGH address outputs (A0-A2), an active HIGH enable input (EIn), an active HIGH enable output (EOut) and an active HIGH group select output (GS).

There are some features about 4532B as follows: (1)active high priority inputs; (2)cascadable.

What comes next is about the AC characteristics and set-up requirements about 4532B : VSS=0 V, TA=25, CL=50 pF, RL=200 k, input transition times20 ns: (1)tPLH, propagation delay, EIn to EOut at VDD=5 V: 85 ns typ and 200 ns max; (2)tPLH, propagation delay, EIn to EOut at VDD=10 V: 45 ns typ and 90 ns max; (3)tPLH, propagation delay, EIn to EOut at VDD=15 V: 35 ns typ and 70 ns max; (4)tPHL, propagation delay, EIn to GS at VDD=5 V: 65 ns typ and 150 ns max; (5)tPHL, propagation delay, EIn to GS at VDD=10 V: 35 ns typ and 70 ns max; (6)tPHL, propagation delay, EIn to GS at VDD=15 V: 25 ns typ and 56 ns max.