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Analog Devices DS3234SN#T&R — DC-DC Power Modules
Analog Devices

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

MPNDS3234SN#T&R
End of Life

Maxim Integrated DS3234SN#T&R, Clock/Calendar RTC, SPI, 256B SRAM, TCXO/Crystal, Alarm, Square Wave Output, 2V~5.5V, -40°C~85°C, 20-SOIC (0.295", 7.50mm Width), Tape & Reel.

$11.27Ref. price · indicative, final on quote
DS3234SN#T&R 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.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

DS3234SN#T&R 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
PackageTape & Reel (TR); Cut Tape (CT)
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

RTC with integrated TCXO — what it means for the BOM

The Maxim Integrated DS3234SN#T&R is a temperature-compensated real-time clock (RTC) with an integrated TCXO and crystal, communicating over an SPI interface. It keeps time in YY-MM-DD-dd and HH:MM:SS (12/24 hr) formats, with 256 bytes of SRAM for user data, and generates alarms and square-wave outputs. The on-chip TCXO eliminates the need for an external crystal and trimming capacitors, saving board space and improving long-term accuracy over temperature — a key advantage for industrial and outdoor equipment where the ambient swings from -40°C to 85°C.

Lifecycle and sourcing reality

The DS3234SN#T&R carries an Active product status and is ROHS3 compliant.

Frequently asked questions

What is the closest pin-compatible alternative to DS3234SN#T&R?

Within the same Maxim RTC family, the DS3232 is a common cross-shop candidate. The DS3234SN#T&R adds an integrated TCXO and crystal, which the DS3232 lacks — that changes the external BOM and accuracy profile. Verify pin compatibility against your layout before substituting.

How accurate is the DS3234SN#T&R real-time clock?

The integrated TCXO and crystal deliver temperature-compensated timekeeping across the full -40°C to 85°C operating range. The datasheet specifies accuracy better than ±2 ppm from 0°C to 40°C and ±3.5 ppm from -40°C to 85°C — roughly 1 minute per year drift at room temperature.

What is the DS3234SN#T&R's listed package?

The DS3234SN#T&R comes in a 20-SOIC wide-body package (0.295-inch, 7.50mm width), surface-mount. It is offered in Tape & Reel (TR) and Cut Tape (CT) options.