38 MHz PLL with integrated VCO — what it buys you
The Texas Instruments CD74HCT4046AMT is a single-circuit phase-locked loop (PLL) with an on-chip voltage-controlled oscillator (VCO), built in 74HCT CMOS logic. The VCO can be swept up to 38 MHz, which sets the practical upper bound for the PLL's capture and lock range. The 1:4 input-to-output ratio means one reference input can drive four phase-detector outputs — useful for distributing a clean clock or synchronizing multiple local oscillators from a single source.
Military temperature range — not just industrial
Active lifecycle — no end-of-life clock ticking
Marked as Active with ROHS3 compliance, so there is no LTB window to chase, no last-buy deadline. The 74HCT family has broad distribution, so supply is generally stable — no allocation-era panic needed here.
This is a current-production, widely stocked part in the 74HCT logic family.