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Analog Devices DS1687-5+ — DC-DC Power Modules

DS1687-5+ RTC Clock/Calendar, Parallel Interface

MPNDS1687-5+
End of Life

Maxim Integrated DS1687-5+, Clock/Calendar RTC, Parallel Interface, 242B NVSRAM, Alarm, Square Wave Output, Y2K, 4.5V-5.5V supply, 2.5V-3.7V battery backup, 0°C-70°C, 24-EDIP Through Hole.

$20.37Ref. price · indicative, final on quote
Packaging24-DIP Module (0.600", 15.24mm)
RoHSROHS3 Compliant
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

DS1687-5+ specifications
ParameterValue
TypeClock/Calendar
MountingThrough Hole
Voltage4.5V ~ 5.5V
Voltage - supply, battery2.5V ~ 3.7V
Current - timekeeping3mA @ 5V
InterfaceParallel
Operating temperature0°C ~ 70°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

This part belongs in indoor, climate-controlled equipment — office automation, point-of-sale terminals, instrumentation racks. Not suited for outdoor telecom cabinets or unheated enclosures without additional thermal management.

24-pin EDIP (0.600 inch, 15.24 mm pitch), through-hole mount. The module footprint is larger than a surface-mount SOIC or TSSOP, so board area is a consideration. The through-hole package simplifies hand-assembly and rework — a plus for prototype runs or field repair.

The part is ROHS3 compliant.

Frequently asked questions

What battery voltage does the DS1687-5+ support?

The battery backup input accepts 2.5V to 3.7V, which covers standard 3V lithium coin cells.

Can the DS1687-5+ operate at 3.3V?

No — the main supply range is 4.5V to 5.5V. 3.3V operation is outside the rated supply range.

What is the difference between DS1687-5 and DS1687-5+?

The DS1687-5+ is the ROHS3-compliant version of the DS1687-5. Electrical specifications and pinout are identical; the '+' suffix indicates lead-free / RoHS compliance.