Current draw and why it matters for power-constrained designs
In a battery-powered sensor node or portable instrument, the oscillator's draw sits well below the MCU's active-mode current, so the clock tree is not the dominant power term. The 0.89 mm seated height and 4-VLGA footprint fit under a shielding can or on a dense mixed-signal board where a quartz can with the same frequency stability would need more board area and a taller profile.
Obsolete status — sourcing reality for this DSC61XX variant
Microchip lists the DSC6122JI2A-00AUT as obsolete. No official successor order code is recorded in the lifecycle data. A pin-compatible replacement within the DSC61XX family would require the same 4-VLGA footprint and dual-output CMOS logic; Microchip's current portfolio should be reviewed for an active-orderable alternative before respinning a board.