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Analog Devices DS3234SN# — Discrete Semiconductors
Analog Devices

Maxim DS3234SN# RTC Clock/Calendar, SPI, -40°C to 85°C

MPNDS3234SN#
End of Life

Maxim DS3234SN#, Clock/Calendar RTC, SPI interface, TCXO/Crystal, 256B SRAM, Alarm, Square Wave Output, 2V to 5.5V supply, -40°C to 85°C, 20-SOIC surface mount.

$11.16Ref. price · indicative, final on quote
DS3234SN# datasheet
Packaging20-SOIC (0.295", 7.50mm Width)
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
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Specifications

DS3234SN# Technical Specifications
ParameterValue
TypeClock/Calendar
Mounting typeSurface Mount
Voltage2V ~ 5.5V
Voltage - supply, battery2V ~ 3.8V
Current - timekeeping120µA ~ 160µA @ 3.63V ~ 5.5V
InterfaceSPI
Operating temperature-40°C ~ 85°C
PackageTube
FeaturesAlarm, Leap Year, Square Wave Output, SRAM, TCXO/Crystal
Date formatYY-MM-DD-dd
Memory size256B
Time formatHH:MM:SS (12/24 hr)
Case20-SOIC (0.295\", 7.50mm Width)

Product details

What this RTC brings to the board

The Maxim DS3234SN# is a temperature-compensated real-time clock/calendar with an integrated TCXO and crystal, communicating over SPI. It keeps time to within a few minutes per year across the full -40°C to 85°C industrial range — no external trimming needed. On-chip 256B SRAM stores calibration or configuration data without tying up a separate EEPROM. The alarm output and programmable square wave save a timer channel on the host MCU.

Lifecycle and compliance

The DS3234SN# is listed as Active — no end-of-life notice, no last-time-buy pressure. Fully ROHS3 compliant, so it passes European and domestic RoHS requirements without exemption paperwork.

Frequently asked questions

What is the SPI interface of DS3234SN#?

The DS3234SN# uses a standard 4-wire SPI interface for communication with the host microcontroller. It supports read/write access to the timekeeping registers, alarms, and the 256B SRAM.

Is DS3234SN# RoHS compliant?

Yes, the DS3234SN# is ROHS3 compliant, meeting the latest European RoHS directive without exemptions.