DS1344D-33+T&R The Analog Devices DS1344D-33+T&R is a low-current Real Time Clock (RTC) with SPI interface. It operates from 1.3V to 5.5V and features a wide temperature range.
Mfr Part #:

DS1344D-33+T&R

Available from 1 distributors
Mfr Name: Analog Devices / Maxim Integrated
Analog Devices / Maxim Integrated
The Analog Devices DS1344D-33+T&R is a low-current Real Time Clock (RTC) with SPI interface. It operates from 1.3V to 5.5V and features a wide temperature range.
✓ Total Stock: 4 pcs

DS1344D-33+T&R Available from 1 distributor

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DS1344D-33+T&R Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Date Format
Features
Interface
Memory Size
Mounting Type
Operating Temperature
Supplier Device Package
Supplier Package
Tape & Reel
Time Format
Type
Voltage

DS1344D-33+T&R Description

Short technical summary and product information.

The DS1344D-33+T&R from Analog Devices (Maxim Integrated) is a low-current Real Time Clock (RTC) designed for timekeeping applications requiring minimal power consumption. It provides seconds, minutes, hours, day, date, month, and year information with automatic leap year compensation valid through 2099.

 

This RTC supports an SPI interface for serial data transfer and includes features such as two programmable time-of-day alarms, NVRAM for data storage, and trickle-charge capability. It operates over a wide voltage range of 1.3V to 5.5V and maintains time down to 1.15V. The device is specified for an extended industrial temperature range of -40°C to +85°C.

 

The DS1344D-33+T&R is available in a 14-pin TDFN package, suitable for surface mounting. Its low timekeeping current of 250nA (typical) makes it ideal for battery-powered devices and applications where long backup supply life is critical.

 

Key features include compatibility with high-ESR crystals, support for Motorola SPI modes, and burst mode for efficient data reading and writing. The device also incorporates power-fail and switch circuitry.

DS1344D-33+T&R Quick Information

Product Type: Real Time Clock
Canonical Name: DS1344D-33+T&R SPI/3-Wire Real-Time Clock
Subcategory: Clock/Calendar

DS1344D-33+T&R Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Lead-free/RoHS-compliant

DS1344D-33+T&R Features

  • Low timekeeping current of 250nA.
  • SPI and 3-wire serial interface.
  • Wide operating voltage from 1.3V to 5.5V.
  • 96-byte battery-backed NV RAM.
  • Operates from -40°C to 85°C.

DS1344D-33+T&R Applications

  • Ideal for battery-powered devices.
  • Suitable for embedded timestamping.
  • Used in handheld electronic devices.
  • Applicable in medical equipment.
  • Supports telematics systems.

DS1344D-33+T&R FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the DS1344D-33+T&R?

The operating voltage range is 1.3V to 5.5V.

What is the operating temperature range for this Real Time Clock?

The operating temperature range is -40°C to 85°C.

What type of interface does the DS1344D-33+T&R use?

It uses an SPI interface.

How much NV RAM is available on the DS1344D-33+T&R?

It has 96 bytes of NV RAM.

What package is the DS1344D-33+T&R supplied in?

It is supplied in a 14-TDFN (3x3) package.

Does the DS1344D-33+T&R support alarms?

Yes, it features two programmable time-of-day alarms with two interrupt outputs.

What is the typical timekeeping current for the DS1344D-33+T&R?

The typical timekeeping current is 250nA.

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