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Analog Devices DS1687-3IND+ — Memory (DRAM / SRAM / Flash / EEPROM)

DS1687-3IND+ RTC Clock/Calendar, 242B NVSRAM, -40°C~85°C

MPNDS1687-3IND+
End of Life

Analog Devices DS1687-3IND+, Type Clock/Calendar, Parallel Interface, 242B NVSRAM, 2.7V~3.7V Supply, 2.5V~3.7V Battery, -40°C~85°C, 24-EDIP Module, Tube.

$20.13Ref. price · indicative, final on quote
Packaging24-DIP Module (0.600", 15.24mm)
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DS1687-3IND+ specifications
ParameterValue
TypeClock/Calendar
MountingThrough Hole
Supply voltage2.7V ~ 3.7V
Voltage - supply, battery2.5V ~ 3.7V
Current - timekeeping2mA @ 3V
InterfaceParallel
Operating temperature-40°C ~ 85°C
PackageTube
FeaturesAlarm, NVSRAM, Square Wave Output, Y2K
Date formatYY-MM-DD-dd
Memory size242B
Time formatHH:MM:SS (12/24 hr)
Case24-DIP Module (0.600\", 15.24mm)

Product details

RTC with integrated NVSRAM and battery backup

It keeps time in YY-MM-DD-dd date format and HH:MM:SS (12/24 hr) time format over a parallel interface. Onboard 242 bytes of NVSRAM hold configuration or event data without external memory. The module includes alarm, square wave output, and Y2K compliance. Supply range is 2.7 V to 3.7 V; a separate battery input accepts 2.5 V to 3.7 V for timekeeping when main power drops. Timekeeping current draws 2 mA max at 3 V. The industrial temperature grade (−40°C to 85°C) suits outdoor telecom, factory automation, and engine-bay logging applications.

Marked as Active in production. ROHS3 compliant.

Frequently asked questions

Does the DS1687-3IND+ have a built-in crystal?

Yes, the 24-EDIP module integrates the crystal and the battery cell internally. No external crystal or battery holder is required.

Is DS1687-3IND+ compatible with the DS1687-5?

The DS1687-3IND+ is the 3 V supply variant of the DS1687 family; the DS1687-5 runs on 5 V. They share the same 24-EDIP footprint and pinout, but supply rails differ — verify your board's VCC before substituting.

Is the DS1687-3IND+ RoHS compliant?

Yes, it is ROHS3 compliant.