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- 2026.09.11 Comparator Circuit: Voltage Thresholds, Op-Amp Differences, LM393 and Practical Design Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
- 2026.09.10 Schmitt Trigger Explained: Hysteresis, Circuits, Inverters and Applications Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
- 2026.09.09 Counterfeit Electronic Components: How to Detect, Authenticate, and Test Suspect Parts Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
- 2026.09.08 Obsolete Electronic Components: How to Source and Evaluate Replacements A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
- 2026.09.07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
- 2026.09.04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
- 2026.09.03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
- 2026.09.02 74HC595 Pinout, Timing, Output Current, and Applications The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
- 2026.09.01 Latch vs Flip-Flop: Timing, Differences and Design Choices A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
- 2026.08.30 D Latch Circuit: Truth Table, Timing, ICs and Applications A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
- 2026.08.28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
- 2026.08.27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
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