LTC6995CDCB-2

Programmable Timers And Oscillators Overview

The LTC6995CDCB-2 is a silicon oscillator from the TimerBlox family, designed for long duration timing events. It features a programmable period range of 1.024ms to 9.54 hours (29.1µHz to 977Hz). The output clock period is determined by an internal master oscillator and a programmable frequency divider (NDIV) with eight settings from 1 to 2^21. Configuration requires one to three resistors. The device operates on a single supply voltage ranging from 2.25V to 5.5V, with a supply current between 55µA and 80µA depending on the clock period. It includes a reset function to stop oscillation and clear dividers.

Programmable Timers And Oscillators Feature Summary

• Programmable period range from 1.024ms to 9.54 hours using a single RSET resistor and DIV pin configuration
• Active-low reset input characteristic of the LTC6995-2 version
• Configurable output polarity via the POL bit in the DIVCODE setting
• CMOS output driver capable of sourcing and sinking 20mA

Programmable Timers And Oscillators Applications

• Power-on reset timers
• Watchdog timers
• Long time one-shot circuits
• Periodic wake-up calls
• Heartbeat timers

Programmable Timers And Oscillators Procurement Notes

Verify the specific suffix #TRMPBF or #TRPBF against the required tape and reel quantity, as the base part number covers multiple packaging options. Confirm the temperature grade 'C' corresponds to the 0°C to 70°C specified range for the DCB package. Ensure the active-low reset requirement matches the -2 variant designation.

Programmable Timers And Oscillators Selection Notes

Select the LTC6995-2 variant when an active-low reset signal is required. Use Table 1 in the datasheet to determine the correct resistor values for the DIV pin to achieve the desired NDIV and output polarity. Calculate RSET based on the target frequency and selected NDIV to ensure the current stays within the 1.25µA to 20µA range for optimal accuracy.

Programmable Timers And Oscillators Part Context

This component belongs to the Analog Devices TimerBlox family of versatile silicon timing devices. The LTC6995 series is specifically engineered for low-frequency applications requiring high stability over long durations. The CDCB-2 designation indicates the commercial temperature grade, DFN package, and active-low reset functionality.

Programmable Timers And Oscillators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.