What this silicon oscillator does on your board
The LTC6906CS6#TRMPBF is a programmable silicon oscillator from Analog Devices, part of the Clock & Timing ICs category. It generates a square-wave clock from 10 kHz to 1 MHz without any external timing components — no crystal, no ceramic resonator, no RC network. The frequency is set by a single external resistor, which means you can tweak it mid-design or even in firmware if you route the resistor to a DAC. Supply current is 78 µA typical, making it a solid choice for battery-powered or always-on peripherals where a crystal oscillator would burn too much quiescent current. That keeps it in indoor, office, or consumer gear; not for the engine bay or a rooftop sensor.
The part comes in a TSOT-23-6 package (SOT-23-6 Thin), which is the same 6-pin footprint as a standard SOT-23 but with a lower profile. It's surface-mount and hand-solderable with a fine-tip iron — no hot-air station required. Pin 1 orientation is marked by a dot on the top of the package. The small footprint leaves room on dense boards, but the 0.95 mm pitch means a standard 6-pin SOT-23 land pattern works — just confirm the pad dimensions against the TSOT-23-6 drawing.
Sourcing and ordering — how to get this on your BOM
If you need a wider temperature range, the LTC6906HS6#TRMPBF covers -40°C to 125°C with the same pinout and frequency range.