27.6 MHz MEMS oscillator with AEC-Q100 grade
The DSC1001CI2-027.6000B is a 27.6 MHz MEMS-based oscillator from Microchip's DSC1001 series, delivering a CMOS output in a 4-SMD no-lead package. Its MEMS resonator construction gives it better shock and vibration tolerance than a quartz crystal — a meaningful advantage in automotive and industrial environments where board flex or engine vibration can pull a quartz oscillator off frequency.
AEC-Q100 qualification and temperature range
The industrial temperature band also covers outdoor telecom, factory-floor controllers, and engine-bay electronics where a standard commercial oscillator would drift or fail.
Standby mode and supply flexibility
A standby (power-down) function drops supply current to 15 µA max when the enable pin is pulled low — useful for battery-backed modules that sleep between wake events. The supply voltage range spans 1.8V to 3.3V, so the same BOM line can serve a 1.8V core rail or a 3.3V I/O rail without a separate level translator.
Frequency stability and current draw
Frequency stability is ±25 ppm over the full temperature and supply range — tight enough for most UART, SPI, and CAN clocking without external trimming. Maximum supply current is 7.2 mA at 27.6 MHz, keeping the thermal contribution low in a dense PCB layout.