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Analog Devices LTC6991HS6#TRMPBF — Clock & Timing ICs
Analog Devices

LTC6991HS6#TRMPBF TimerBlox® Silicon Oscillator

MPNLTC6991HS6#TRMPBF
End of Life

Analog Devices (Linear Technology) TimerBlox® LTC6991HS6#TRMPBF, silicon oscillator, programmable 29.1 µHz to 977 Hz, 2.25 V to 5.5 V supply, 135 µA supply current, -40°C to 125°C, TSOT-23-6 package.

$6.4Ref. price · indicative, final on quote
LTC6991HS6#TRMPBF datasheet
PackagingSOT-23-6 Thin, TSOT-23-6
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
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Specifications

LTC6991HS6#TRMPBF Technical Specifications
ParameterValue
TypeOscillator, Silicon
SeriesTimerBlox®
Mounting typeSurface Mount
Voltage2.25V ~ 5.5V
Current - supply135 µA
Frequency29.1µHz ~ 977Hz
Operating temperature-40°C ~ 125°C
PackageTape & Reel (TR); Cut Tape (CT)
CaseSOT-23-6 Thin, TSOT-23-6

Product details

What the LTC6991HS6#TRMPBF is and where it fits

The LTC6991HS6#TRMPBF is a silicon oscillator from Analog Devices' TimerBlox® family, designed to generate extremely long timing periods — from 29.1 µHz up to 977 Hz — using a single external resistor. It runs from a 2.25 V to 5.5 V supply and draws 135 µA typical. The TSOT-23-6 package keeps the footprint small, and the -40°C to 125°C operating range suits industrial, automotive, and outdoor equipment where a microcontroller's internal RC timer drifts too much or a crystal is overkill.

Lifecycle and sourcing

The LTC6991HS6#TRMPBF is listed as Active on the manufacturer's lifecycle record, so there is no immediate end-of-life risk for new designs. It is ROHS3 compliant.

Frequently asked questions

Is there an equivalent or replacement for LTC6991HS6#TRMPBF?

The LTC6995 series (e.g., LTC6995HS6-1#TRMPBF) is a higher-frequency sibling in the same TimerBlox® family and the same TSOT-23-6 package, but it covers a different frequency range — it tops out at 977 Hz as well but starts at a higher minimum. For the ultra-low-frequency range of the LTC6991, there is no direct pin-compatible second source; the LTC6991 is the only TimerBlox® part that goes down to 29.1 µHz.

How do I program the LTC6991 oscillator?

The output frequency is set by connecting a single resistor between the SET pin and ground. The resistor value determines the period according to the formula in the datasheet. No software or external clock is required.