The DSC6101HI2A-008.0000T: Maximum current draw is 3 mA typical — low enough that the oscillator's contribution to the system power budget is negligible, even in battery-backed designs. That is tight enough for a CAN bus or a basic UART clock where the bit timing margin is a few percent, but not tight enough for a precision GPS reference or a high-speed serial link like USB 2.0.
Package and board-fit
Surface-mount only; no socket option, so a rework station is needed for replacement. The output goes high-Z when disabled, which is handy for sharing a clock line between multiple peripherals.
Sourcing reality for an obsolete part
Microchip lists the DSC6101HI2A-008.0000T as obsolete. No official successor order code is recorded, so a direct pin-compatible drop-in from the same manufacturer is not on the table. The MEMS oscillator family is broad, but the 4-VFLGA footprint and 8 MHz frequency are specific enough that a board spin may be needed if a substitute is required.