The ILSI ISM36 and ISM37 Series are quartz crystal oscillators which provide an accurate 32.768kHz LVCMOS output. These series come in compact sizes of 2.0 x 1.6 x 0.8mm and 1.6 x 1.2 x 0.7mm, with available inclusive frequency stabilities of ±25ppm over an industrial operating range of -40°C to +85°C.

These product series enable the design engineer to eliminate the need for a separate 32.768kHz watch crystal and associated load capacitors from his design, combining LVCMOS oscillator functionality as a single footprint in the circuit. This product also features low current draw of less than 100µA at discrete industry standard supply voltages from 1.8VDC to 3.3VDC as well as a continuous supply voltage range option of 1.62VDC to 3.63VDC.

The ISM36 and ISM37 Series offer design engineers the combination of a LVCMOS output, an accurate 32.768kHz reference, low current consumption, and a continuous voltage range option resulting in an accurate timing reference for battery operated applications demanding small footprints.

Low Current Consumption
LVCMOS Output Logic
Continuous Supply Voltage Range
Compact SMD Footprint
AT-Cut Crystal Temperature Stability Characteristics
Eliminates external load capacitors
Pb-free, RoHS and REACH compliant

RTC Reference Clock
Smart Metering
Industrial Control
IoT Devices
Battery Management
Health and Wellness Devices
System Clock Source

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