What this silicon oscillator does in your assembly
The LTC6909HMS#PBF is a programmable silicon oscillator from Analog Devices, part of the Clock & Timing ICs category. It generates a square-wave clock output from 12.5 kHz up to 6.67 MHz, set by a single external resistor — no crystal or ceramic resonator needed. It operates from a 2.7V to 5.5V supply rail, drawing 2.4 mA typical supply current. The output is a rail-to-rail square wave that can drive up to 5 pF loads directly. The 16-MSOP package (3.00 mm width) is a compact surface-mount footprint for space-constrained PCBs.
The 12.5 kHz to 6.67 MHz span covers common microcontroller clock inputs, ADC sample clocks, and serial-interface timing. The 2.4 mA supply current is low enough to keep thermal rise minimal in the 16-MSOP package.
Lifecycle and sourcing — active production, no EOL concern
This means no last-time-buy pressure for the BOM line; you can source it for new designs and ongoing production without obsolescence risk. It is ROHS3 compliant, so it meets the latest EU hazardous-substance restrictions. The part ships in a Tube (standard for 16-MSOP), with an alternate tape-and-reel option under MPN LTC6909HMS#TRPBF for automated pick-and-place. Submit an RFQ — we source from authorized distribution channels and can quote volume or sample quantities.
Package and footprint — 16-MSOP layout notes
The 16-MSOP package (3.00 mm body width) is a standard surface-mount footprint. Mounting is surface-mount only.