LTC6995HDCB-1#TRMPBF

Programmable Timers And Oscillators Overview

The LTC6995HDCB-1#TRMPBF 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 frequency is set by a single external resistor (RSET) connected between the SET and GND pins. An internal 4-bit A/D converter on the DIV pin selects one of eight divider settings (NDIV = 1 to 221) and determines output polarity. The device operates on a single supply voltage of 2.25V to 5.5V with low current consumption ranging from 55µA to 80µA. It includes an active-high reset input specific to the -1 variant.

Programmable Timers And Oscillators Feature Summary

• Programmable period range from 1.024ms to 9.54 hours using a single RSET resistor
• Internal 4-bit A/D converter on DIV pin selects NDIV (1 to 221) and output polarity
• Active-high reset input for LTC6995-1; CMOS output driver sources/sinks 20mA
• Operating temperature range of –40°C to 125°C in 6-lead DFN package

Programmable Timers And Oscillators Applications

• Power-On Reset Timers
• Watchdog Timers
• Long Time One Shot
• Periodic Wake-Up Calls
• Heartbeat Timers

Programmable Timers And Oscillators Procurement Notes

Verify the suffix #TRMPBF indicates Mini Tape and Reel packaging. Confirm the HDCB designation corresponds to the 6-lead (2mm x 3mm) Plastic DFN package. Ensure the -1 suffix matches requirements for active-high reset logic. Check automotive qualification status if required, as standard parts differ from W-suffix automotive grades.

Programmable Timers And Oscillators Selection Notes

Select LTC6995-1 for active-high reset or LTC6995-2 for active-low reset. Use Table 1 in the datasheet to determine R1/R2 values for the DIV pin based on desired NDIV and POL bit. Calculate RSET using the formula tOUT = NDIV * RSET / 50kΩ * 1.024ms. Ensure RSET tolerance is 0.5% or better for high accuracy applications.

Programmable Timers And Oscillators Part Context

This component belongs to the Analog Devices TimerBlox family of versatile silicon timing devices. The LTC6995 series specifically targets low-frequency oscillation and long-duration timing applications. The -1 variant distinguishes itself by having an active-high reset input, whereas the -2 variant uses an active-low reset. Both share identical electrical characteristics except for reset polarity.

Programmable Timers And Oscillators Replacement Considerations

LTC6995IDCB-1#TRMPBF offers the same functionality with a specified temperature range of –40°C to 85°C.