digital inputs Interview Questions
The most frequently asked digital inputs questions across all roles and companies, ranked by real interview frequency. Updated daily.
Implement a synthesizable 2:1 multiplexer that selects one of two 16-bit inputs using a control signal.
AMD Construction Group
AMD
Advanced Micro DevicesImplement per-key debounce logic that emits buzzer intervals for valid key presses.
CATERPILLARImplement a one-bit full adder by composing two half adders and combining their carry outputs.
QualcommImplement the XOR truth table using only four 2-input NAND gates and reusable intermediate signals.
AMDModel a toggle synchronizer crossing into a slower clock domain and report destination edges where events become visible.
Intuitive SurgicalUse ordered conditional statements to select a power-system action from battery, solar, load, and fault states.
AndurilDetect stable digital input states by requiring consecutive identical samples before reporting transitions.
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Model a bulb that toggles after every switch press, regardless of which of two switches is used.
Apple