The DSC6001HE2A-014.7456: For existing production boards, the last-time-buy window has closed — quantities are now limited to surplus and independent-distribution stock. Any remaining inventory is lot-specific; availability is confirmed only at the time of RFQ. Because no direct replacement with the same package and pinout exists from Microchip, a board spin or a functionally equivalent MEMS oscillator from another vendor may be required to sustain production.
Key ratings for your timing budget
This MEMS-based XO delivers a 14.7456 MHz CMOS output with a frequency stability of ±25 ppm across the -20°C to +70°C commercial temperature range. The ±25 ppm stability covers temperature, supply voltage, and aging — a solid budget for a UART baud-rate reference or a microcontroller clock. The wide supply range of 1.71V to 3.63V means it can run directly from a 1.8V, 2.5V, or 3.3V rail without an external regulator, simplifying the power tree. Typical current draw is 1.3 mA, which keeps the thermal load low in the compact 1.6 mm x 1.2 mm 4-SMD package. The AEC-Q100 qualification indicates the part was designed and tested for automotive stress levels — temperature cycling, ESD, and reliability pre-conditioning. That grade speaks to its robustness in high-vibration, wide-temperature environments, even though the commercial temperature range limits it to cabin or infotainment domains, not under-hood.
The 4-SMD, No Lead package (1.60 mm x 1.20 mm, seated height 0.89 mm) is a standard MEMS oscillator footprint. The 4 pads — typically VDD, GND, output, and enable/standby — match the common 4-pin oscillator land pattern used across many MEMS and crystal oscillators. The 0.50 mm pad pitch and 0.89 mm height fit well in space-constrained designs like automotive camera modules or portable instrumentation.