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Low-voltage positive emitter-coupled logic (LVPECL) is a power optimized version of __________(a) ECL(b) VECL(c) PECL(d) LECLI got this question at a job interview.This intriguing question originated from Emitter-Coupled Logic(ECL) in portion Logic Families of Digital Circuits

Answer»

The correct answer is (c) PECL

Easy explanation: Low voltage positive EMITTER coupled logic (LVPECL) is a power optimized VERSION of PECL using a +3.3 V instead of 5 V supply.



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