Encyclopedia of Electronic Components Volume 2

Chapter 14. encoder

integrated circuit

digital

encoder

In this encyclopedia, an encoder is a digital chip that converts a decimal-valued input into a binary-coded output.

The term “encoder” may alternatively refer to a rotational encoder (also known as a rotary encoder) which has a separate entry in Volume 1 of this encyclopedia. The term may also describe a code hopping encoder, which is an encryption device used in keyless entry systems for automobiles.

Other related components

• decoder (see Chapter 15)

• multiplexer (see Chapter 16)

What It Does

An encoder is a logic chip that receives an input consisting of an active logical state on one of at least four input pins, which have decimal values from 0 upward in increments of 1. The ...