Frequency stability and the ±50 ppm window
The DSC6011HE1A-000.0000T: For a 50 MHz carrier, that is a maximum drift of ±2.5 kHz — tight enough for UART bit-rate accuracy and most MCU clock trees, but not for precision RF or Ethernet PHY reference where ±25 ppm or better is typical.
Board footprint and programming note
This variant ships as a blank (user-programmable) device, meaning the frequency is not pre-set at the factory; it requires programming via Microchip's programming infrastructure before the board is assembled.
Lifecycle status and sourcing path
No official successor order code is listed on the lifecycle record, so a direct pin-compatible replacement from the DSC60XX family is not confirmed by the manufacturer. The part is sourced to order; availability and current pricing are quoted against the BOM line.