The DSC6021HE1A-00D7: If your design needs those exact frequencies in a 4-VFLGA footprint, this is the part — but only as a replacement for an existing build, not for a new one.
What the key ratings mean for fit
The dual output at 2.048 MHz and 4.096 MHz is typical for telecom timing references — 2.048 MHz is the line rate, and 4.096 MHz is double that, often used in TDM backplanes or as a base clock for PLLs. That is enough for most industrial UART, SPI, or basic clocking needs, but not tight enough for precision Ethernet or GPS holdover — those would require a TCXO or OCXO class part.
Sourcing reality for an obsolete MEMS oscillator
Because Microchip no longer manufactures the DSC6021HE1A-00D7, new-stock procurement goes through independent distribution. If you are restocking a legacy board, the 4-VFLGA footprint and 1.71 V–3.63 V supply range are the critical fit parameters. A functionally equivalent MEMS XO from another vendor would need to match both output frequencies, the CMOS output type, and the package — a board spin is likely if the original is unavailable.