80 MHz CMOS oscillator in a 3.2 × 2.5 mm package
The ASEM1-80.000MHZ-LC-T: The 3.20mm × 2.50mm outline with a 0.90mm seated height sits below the 1 mm profile threshold that determines whether the part clears typical socket lid or heat-sink interference in a stacked PCB assembly — the 4-SMD no-lead package is reflow-soldered directly to the board.
Power draw and standby disable
Maximum supply current is 15 mA at 3.3 V — that is the active draw at 80 MHz CMOS toggle, which sets the power budget for always-on clock rails in battery-backed or power-sensitive designs. In standby mode the part draws a maximum of 1 µA, so a host microcontroller can gate the oscillator's supply to extend battery life during deep-sleep intervals without needing an external load switch — the standby function (Power Down) on the output pin holds the CMOS output in high-impedance.
Temperature grade and stability over range
Rated -40°C to 85°C operating range covers the industrial ambient band; the ±50ppm frequency stability figure includes temperature drift across that window, so for an 80 MHz clock the total frequency error stays within ±4 kHz over the full temperature swing — adequate for UART, SPI, and I2C bus clocking but check the jitter budget against PLL reference requirements.