Instant Quote

Home > Integrated Circuits ICs > DS3234SN#T&R

DS3234SN#T&R

Extremely accurate SPI RTC, ±2ppm, TCXO+crystal, 256B SRAM, 20-SOIC industrial

5657

Effective Inventory
Go to Inquiry

Image for reference only

Manufacturer Part：

DS3234SN#T&R

Package：

20-SOIC (7.5 x 5.3 x 2.35mm, 300mil)

Brand：
Product Categories：
Quality Commitment
Shipping & Payment
Service & Packaging
Product Manual
Other recommendations you may be interested in.

STM32L072RBT6

TPS65217CRSLR

SN74HC273NSR

ADE7953ACPZ-RL

SN74HC138N

ATMEGA328-AU

AD826ARZ-REEL7

TPA0211DGNR

Description

Product Overview

The DS3234SN#T&R from Analog Devices (Maxim Integrated) is an extremely accurate SPI bus real-time clock (RTC) with integrated temperature-compensated crystal oscillator (TCXO) and 256-byte battery-backed SRAM. In a 20-SOIC package, it achieves ±2ppm accuracy from 0°C to +40°C and operates over the industrial temperature range of -40°C to +85°C.

Key Specifications

Accuracy ±2ppm (0°C to +40°C)
Interface SPI (4MHz, Mode 1 and 3)
Battery-Backed SRAM 256 bytes
Supply Voltage 2.0V to 5.5V
Battery Voltage 2.0V to 3.8V
Temperature Sensor Accuracy ±3°C
Alarms 2 programmable time-of-day
Square-Wave Output Programmable
Package 20-SOIC (300mil, 7.5mm width)
Operating Temperature -40°C to +85°C

Features

  • Integrated TCXO and crystal eliminates external crystal
  • ±2ppm accuracy from 0°C to +40°C
  • ±3.5ppm accuracy from -40°C to +85°C
  • 256 bytes of battery-backed SRAM
  • Digital temperature sensor output: ±3°C accuracy
  • Two time-of-day alarms
  • Programmable square-wave output
  • Active-low RST input/output
  • UL recognized for lithium battery safety

Applications

  • GPS and telematics systems
  • Server and networking equipment
  • Utility power meters
  • Industrial data loggers
  • Medical instrumentation

The DS3234SN#T&R from Analog Devices (Maxim Integrated) is a low-cost, extremely accurate SPI bus real-time clock with an integrated temperature-compensated crystal oscillator (TCXO) and crystal. The integration of the crystal resonator enhances long-term accuracy and reduces component count. The device includes 256 bytes of battery-backed SRAM, two programmable time-of-day alarms, a programmable square-wave output, and a digital temperature sensor with ±3°C accuracy. It is available in an industry-standard 300-mil, 20-pin SO package.

The DS3234 integrates a temperature-compensated crystal oscillator (TCXO) that continuously monitors the ambient temperature and adjusts the crystal load capacitance to maintain frequency accuracy. The digital temperature sensor periodically samples temperature and stores the value in a register. The RTC maintains seconds, minutes, hours, day, date, month, and year information with automatic leap year correction up to 2099. The SPI interface (Mode 1 or 3, up to 4MHz) provides read/write access to time registers, control registers, and the 256-byte SRAM. When VCC drops below the power-fail threshold, the device automatically switches to battery backup.

Pin Name Type Function
1 CS Input Active-low chip select
2, 7-14 N.C. – No connection (connect to GND)
3 32kHz Output 32kHz push-pull output
4 VCC Power Primary supply (2V-5.5V)
5 INT/SQW Output Interrupt / Square-wave output
6 RST I/O Active-low reset / pushbutton input
15 GND Power Ground
16 VBAT Power Backup supply input
17 DIN Input SPI data input
18, 20 SCLK Input SPI clock input
19 DOUT Output SPI data output
  • GPS and fleet telematics time stamping
  • Server and data center time keeping
  • Smart utility meter event logging
  • Industrial process data logging with timestamps
  • Medical device event recording
Manufacturer Part Number Package Notes
ADI/Maxim DS3234S#T&R 20-SOIC Commercial temp (0°C to +70°C)
ADI/Maxim DS3231MZ+VL 8-SOIC I2C version, ±2ppm accuracy
Microchip MCP7940N-I/SN 8-SOIC I2C/SPI RTC, external crystal
EPSON RX8900CE 16-SOIC I2C RTC with TCXO
ST M41T62Q6F QFN-16 Ultra-low power I2C RTC
Recommend Parts

ADE7953ACPZ-RL

Single-phase energy metering IC, <0.1% error, SPI, shunt/CT, LFCSP-28

Brand:

Package:

LFCSP-28 (5×5 mm)
In stock:
5098pcs

Cargo cycle: 3~7 Days
The minimum order is 1

Go to Inquiry

AD826ARZ-REEL7

Dual high-speed op amp, 50MHz, 350V/µs, drives unlimited Cload, 8-SOIC

Brand:

Package:

8-SOIC (3.9×5.0×1.5 mm)
In stock:
7183pcs

Cargo cycle: 3~7 Days
The minimum order is 1

Go to Inquiry

AD5231BRUZ10-REEL7

1024-position nonvolatile digital potentiometer, 10kΩ, SPI, EEMEM, 16-TSSOP, REEL7 packaging

Brand:

Package:

16-TSSOP (5.0×4.4mm)
In stock:
9739pcs

Cargo cycle: 3~7 Days
The minimum order is 1

Go to Inquiry

AD202JN

Transformer-coupled isolation amplifier, 750Vrms isolation, 2kHz bandwidth, 10-DIP, with integrated isolated power

Brand:

Package:

10-Pin DIP
In stock:
14100pcs

Cargo cycle: 3~7 Days
The minimum order is 1

Go to Inquiry

AD7891AS1

8-ch 12-bit 454kSPS ADC DAS, bipolar inputs, parallel/serial, 44-MQFP, 5V supply

Brand:

Package:

MQFP-44 (10 x 10 mm)
In stock:
9131pcs

Cargo cycle: 3~7 Days
The minimum order is 1

Go to Inquiry

AD7226KRZ

Quad 8-bit voltage output DAC, 4-channel, MPU-compatible, 20-SOIC, no external trims

Brand:

Package:

SOIC-20 (Wide) (7.5 x 12.8 mm)
In stock:
5393pcs

Cargo cycle: 3~7 Days
The minimum order is 1

Go to Inquiry
Quality Assurance

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Shipping & Payment

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Service & Packaging

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Company
insights
Industries
All Products
Integrated Circuits
C&I Devices
Discrete
Memory Chips
MPUs & MCUs