Analog Devices DS1501WZN+ — Analog & Data Acquisition
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RoHS Compliant · Lead-Free EIA-481 Standard
Analog Devices / Analog & Data Acquisition

DS1501WZN+ RTC Clock/Calendar, Parallel, 256B NVSRAM

MPN DS1501WZN+
End of Life Spot Stock · 24-48h Dispatch 100% Original Sealed

Analog Devices DS1501WZN+, Clock/Calendar RTC, Parallel Interface, 256B NVSRAM, Alarm, Watchdog Timer, Y2K, 3V-3.6V, -40°C to 85°C, 28-SOIC, Tube.

In Stock: 1,725 pcs
MOQ: 1 pcs
Logistics: DHL / FedEx DAP (Global Express · 3-7d) Russia & CIS DDP (Door-to-Door Cleared)
Dispatch: Shenzhen / HK
Unit Price (USD)
$14.57 / pc
Direct Purchase Ready
Volume Pricing Breaks Confirmed upon quotation
1+ pcs
$14.57
10+ pcs
$13.11
30+ pcs
$11.95
100+ pcs
$10.78
500+ pcs
$10.05
1,000+ pcs
$9.47
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$14.57 / ea

1,725 in stock — maximum per order · 3–4 days lead time

$13.11 / ea from 10 pcs

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[SPEC] Essential Parameters Snapshot Full Specifications (13)
Package / Case 28-SOIC (0.295", 7.50mm Width)
Supply Voltage 3V ~ 3.6V
Memory / RAM 256B

Full Technical Specifications

13 Parameters
DS1501WZN+ specifications
Parameter / AttributeSpecification / Value
TypeClock/Calendar
MountingSurface Mount
Supply voltage3V ~ 3.6V
Voltage - supply, battery2.5V ~ 3.7V
Current - timekeeping4mA @ 3V ~ 3.6V
InterfaceParallel
Operating temperature-40°C ~ 85°C
PackageTube
FeaturesAlarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K
Date formatYY-MM-DD-dd
Memory size256B
Time formatHH:MM:SS (24 hr)
Case28-SOIC (0.295\", 7.50mm Width)
[DESK] Shenzhen Spot Allocation · 2h Response

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[02] Industrial Packaging Tape & Reel / Tray / Tube

Standard factory-sealed packaging compliant with EIA-481 standards for automated high-speed SMT pick-and-place lines.

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Technical Details & Description

RTC with integrated NVSRAM and watchdog — what this part packs

It keeps time in HH:MM:SS (24-hour) and YY-MM-DD-dd date formats. The parallel bus makes it a direct drop-in for designs that already use a byte-wide RTC interface — no SPI or I²C translation needed.

No derating needed for the RTC function across that span.

ROHS3 compliant.

Frequently asked questions

Does DS1501WZN+ have a watchdog timer?

Yes, the DS1501WZN+ includes a watchdog timer as one of its integrated features, along with alarm, leap year compensation, NVSRAM, square wave output, and Y2K tracking.

Does DS1501WZN+ support battery backup?

Yes, it has a dedicated battery backup supply input (2.5V to 3.7V) that maintains timekeeping and NVSRAM contents when the main supply drops.

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