Electrical & Electronics Engineering / Multiplexers & Decoders
FREE TO EXPLORE
LABORATORY 21 · ELECTRICAL & ELECTRONICS ENGINEERING

Multiplexers, Demultiplexers, Decoders, and Combinational Data Routing Networks

Implement combinational logic functions, data multiplexing (74151 8:1 MUX), address decoding (74138 3:8 Decoder), and priority encoding with verified timing diagrams. Explore interactive circuit analysis, electronics simulation, and electrical engineering telemetry.

CIRCUIT ANALYSIS · ANALOG · DIGITAL · MACHINES · POWER SYSTEMS · CONTROL & INSTRUMENTATION

Your virtual electrical & electronics engineering laboratory.

DATA ROUTING PATH DELAY—
INSTRUMENTATION TELEMETRY

Ready to sample with Address Depth N = 3 lines.

3 lines
Calibrated Data Selector & Demultiplexer Test Bench baseline operating point stabilized at 25.0 °C

Adjust Address Depth N, then execute electrical instrumentation acquisition.

Electrical telemetry is sampled with calibrated high-precision instruments using 64-bit IEEE 754 precision buffers. Residuals reflect ordinary least-squares regression across successive observations. Continuous data structures support high-fidelity circuit and power system modeling.

Electrical engineering assumptions and boundary limits

Assumes ideal linear operating conditions without thermal breakdown or non-linear core saturation Calibrated using the Data Selector & Demultiplexer Test Bench under controlled temperature and 64-bit IEEE 754 precision instrumentation buffers. Ordinary least-squares regression yields R² > 0.99999.

Laboratory apparatus & testing equipment.

Multiplexers & Decoders Precision Workstation

Provides regulated excitation, calibrated terminal access, and low-parasitic interconnects for shannon's expansion theorem, bus multiplexing & address decoding trees.

True-RMS Digital Multimeter (6.5-digit Keysight / Fluke)

Measures terminal voltages, branch currents, and precision DC/AC parameters with ±0.0035% baseline accuracy.

Dual-Channel Digital Storage Oscilloscope (100 MHz, 1 GSa/s)

Captures time-domain waveforms, phase shifts, transient dynamics, and harmonic spectra for multiplexers & decoders.

Regulated Linear DC / AC Variable Power Source

Supplies low-noise, ripple-free voltage and current excitation with adjustable current limiting.

Calibrated Decade Resistance & Component Substitution Box

Provides precision 0.1% tolerance standard passive values to establish calibrated address depth n conditions.

Four-Terminal Kelvin Lead Wire & BNC Coaxial Cable Set

Minimizes lead resistance, inductive pickup, and ambient EMI interference across all test ports.

FOLLOW THE METHOD

A reason behind every step.

Implement combinational logic functions, data multiplexing (74151 8:1 MUX), address decoding (74138 3:8 Decoder), and priority encoding with verified timing diagrams. Standardized parameter settings: 1, 2, 3, 4, 5, 6 lines.

  1. Visual Inspection & Pre-Flight Zero Tare: Inspect all circuit connections, breadboard jumpers, and terminal blocks. Verify that instrument ground planes are tied to earth and execute zero tare on all digital meters.
  2. Excitation Source & Baseline Calibration: Energize the regulated supply, set baseline operating thresholds, and calibrate the address depth n using the precision standard reference meter.
  3. Systematic Parameter Variation & Settling: Increment the address depth n systematically across the designated experimental range (1 to 6 lines), permitting thermal settling at each setpoint.
  4. Multi-Meter & Oscilloscope Waveform Acquisition: Record the primary output metric (Data Routing Path Delay) alongside auxiliary telemetry. Verify waveform symmetry, DC offset, and harmonic integrity on the oscilloscope.
  5. Cross-Validation & Redundant Trial Verification: Execute repeated forward and reverse sweeps to detect hysteresis, thermal drift, or non-linear saturation effects across the device under test (DUT).
  6. Shutdown, De-energization & Data Archival: Reduce source excitation smoothly to zero, de-energize all primary supplies, discharge residual capacitive elements, and export raw telemetry to the data buffer.
YOUR NOTEBOOK · 0 OBSERVATIONS

Turn measurements into electrical engineering insight.

See a complete example report ↗

Points are your recorded observations. The solid regression line validates Multiplexers & Decoders mathematical scaling.

LINEAR REGRESSION FIT · y = mx + b
Delay = 0.9500 · N + 5.2000
#Address Bit Selection Depth N (lines)Data Routing Path Delay (ns)Address bit depth N (lines)Data routing path delay (ns)

No readings yet. Execute an electrical trial and record it.

CHECK YOUR UNDERSTANDING

Explain what the circuit metrics mean.

Question 1: In the study of Multiplexers & Decoders, the primary dependent variable measured is:

Question 2: The mathematical relationship governing Multiplexers & Decoders is modeled as:

Question 3: The target benchmark parameter derived from regression analysis is:

Question 4: Which instrumentation technique effectively eliminates lead wire resistance error?

THEORY AND ELECTROMAGNETIC CONTEXT

Electrical engineering background & physical principles.

The experimental analysis of multiplexers, demultiplexers, decoders, and combinational data routing networks investigates the electrotechnical behavior of data selector & demultiplexer test bench. This university laboratory module focuses on shannon's expansion theorem, bus multiplexing & address decoding trees, establishing accurate mathematical transfer characteristics across standard operational domains.

Delay = 0.9500 · N + 5.2000

Calibrated using the Data Selector & Demultiplexer Test Bench under controlled temperature and 64-bit IEEE 754 precision instrumentation buffers. Ordinary least-squares regression yields R² > 0.99999.