What is the primary function of an encoder in digital electronics?

To transform 2^N input lines into an N-bit binary output.

Which type of encoder converts decimal inputs (0-9) into 4-bit Binary-Coded Decimal (BCD) outputs?

Decimal-to-BCD Encoder.

True or False: A 4-to-2 line encoder can handle multiple active inputs simultaneously.

False. A 4-to-2 line encoder assumes only one input is active at a time.

Fill in the blank: Encoders are critical in ______, enabling operations like addition, subtraction, and multiplication in digital systems.

Data Conversion

Riddle: I take multiple inputs and give fewer outputs, simplifying the data flow in electronics. What am I?

An Encoder

What is a significant disadvantage of basic encoders?

They do not inherently detect invalid inputs.

Which encoder type manages multiple interrupt requests in microprocessors?

Priority Encoder.

True or False: The priority encoder outputs the binary code for the lowest priority input when multiple inputs are active.

False. The priority encoder outputs the binary code for the highest priority input.

Fill in the blank: The logical expression for the output A1 of a 4-to-2 priority encoder is ______.

Y3 + Y2

What is the purpose of chip enable inputs in some encoder ICs?

To activate the encoding action by applying a particular logic level.

Which type of encoder can be used to connect multiple encoders to increase input flexibility?

Priority Encoder with chip enable inputs.

Fill in the blank: The 74HC148 is an example of an ______ that uses priority encoding.

8-to-3-Line Encoder

Riddle: I can take a binary number and convert it into a decimal output, but I perform the reverse operation of my cousin. What am I?

A Decoder

What is the main usage of a 2-to-4 line decoder?

To convert binary inputs into a one-hot output format.

True or False: A 3-to-8 line decoder requires three enable inputs to function correctly.

True.

Fill in the blank: The 74HC42 is a type of ______ that converts BCD inputs into decimal outputs.

BCD-to-Decimal Decoder

What feature allows a BCD-to-7-segment decoder to suppress leading zeros?

Ripple Blanking.

Which decoder is used primarily for address decoding in microprocessors?

74HC138.

Fill in the blank: The 74LS48 is a type of ______ designed for driving 7-segment displays.

BCD-to-7-Segment Decoder

Riddle: I can display numbers on a screen, but if you feed me a value greater than 9, I won't show anything. What am I?

A BCD-to-7-Segment Decoder

What is a common limitation of priority encoders in keyboard applications?

They do not sense information from two or more keys pressed simultaneously.

Which component can help eliminate switch bounce in encoder circuits?

ENABLE pin to temporarily disable the encoder.

True or False: Decoders can only be used for memory address decoding.

False. Decoders can also be used for driving displays and other applications.

Fill in the blank: A 4-to-16 line decoder requires ______ lower order decoders to function.

Two 3-to-8 line decoders

What is the primary function of a BCD-to-7-segment decoder?

To convert BCD inputs into control signals for 7-segment displays.