NAND/NOR and SSD
____ NAND gates are required to create 1 AND gate
____ NAND gates are required to create 1 OR gate
____ NAND gates are required to create 1 INV gate
2
3
1
What is the maximum grouping you can make using a three variable K-Map?
8
Convert the decimal number 18910 into its octal equivalent
2758
This device is described as a digital switch with multiple inputs and one output, controlled by select lines.
What is a multiplexer (MUX)?
This logic gate outputs 1 only when exactly one of the inputs is 1.
What is the XOR gate?
____ NOR gates are required to create 1 AND gate
____ NOR gates are required to create 1 OR gate
____ NOR gates are required to create 1 INV gate
3
2
1
What is the simplified expression for this TT?
J K F1
0 0 1
0 1 1
1 0 0
1 1 0
F1 = J'
Convert the decimal number 42910 into its hexadecimal equivalent
1AD16
A 4‑to‑1 MUX uses this many select lines to choose which data input is sent to the output.
What are two select lines?
This gate outputs 1 only when both inputs are the same, either both 0 or both 1.
What is the XNOR gate?
How many LEDs are imbedded in a SSD?
7
Simplify.
G' G
E'F' 0 1
E'F 1 0
EF 1 0
EF' 0 1
F2 = FG'+F'G
Convert the hexadecimal number 5AH into its octal equivalent
1328
This device performs the opposite function of a MUX by routing a single input to one of several outputs based on select lines.
What is a demultiplexer (DEMUX)?
This type of adder has two inputs (A and B) and produces a Sum and Carry‑out, and is used only for the least significant bit.
What is a half adder?
Two single input NAND or NOR gates connected in a row are called a...
Double inversion
What does the "K" in K-Mapping stand for?
Karnaugh
Convert the hexadecimal number A616 into its binary equivalent
101001102
In a 1‑to‑4 DEMUX, the input signal appears at D2 when the select lines B and A are set to this binary combination.
What is 10 (B=1, A=0)?
In 2’s complement arithmetic, when adding a positive and negative number, you determine the sign of the result by checking this specific bit in the final 8‑bit answer.
What is the 8th bit (MSB)?
A common cathode SSD must be connected to _____ in order to function
Ground
This type of truth‑table entry, denoted with an X, can be treated as 0 or 1 to simplify groupings.
What is a don’t‑care condition?
Convert the binary number 101001102 into its octal equivalent
2468
Most medium‑scale integrated DEMUX devices use outputs in this form because it requires fewer logic gates during implementation.
What is inverted outputs?
When adding two negative numbers using 2’s complement, this must be done first to both numbers before performing binary addition.
What is “take the 2’s complement of each negative number”?