DS1672U-33 - Analog Devices Inc./Maxim Integrated

Manufacturer Part Number

DS1672U-33

Manufacturer

Analog Devices

Introduction

The DS1672U-33 is a real-time clock (RTC) component for time tracking and management in electronic systems.

Product Features and Performance

Binary counter RTC

Built-in trickle-charger for battery backup

I2C, 2-wire serial interface for communication

Compatible with 2.97V to 3.63V power supply

Battery voltage support from 1.3V to 3.63V

Maximum timekeeping current of 500µA at 3.63V

Designed to operate in extreme temperatures from -40°C to 85°C

Surface mount design for PCB assembly

Product Advantages

High precision timekeeping

Low power consumption for battery-powered applications

Robust design suitable for a range of operating conditions

Simple integration with microcontrollers via I2C interface

Key Technical Parameters

Voltage - Supply: 2.97V ~ 3.63V

Voltage - Supply, Battery: 1.3V ~ 3.63V

Current - Timekeeping (Max): 500µA @ 3.63V

Operating Temperature: -40°C ~ 85°C

Mounting Type: Surface Mount

Interface: I2C, 2-Wire Serial

Quality and Safety Features

Stable timekeeping under varying temperatures and voltages

Built-in charge management for battery safety

Compatibility

Compatible with systems requiring an I2C 2-wire serial interface for timekeeping

Application Areas

Electronic appliances

Industrial time-sensitive systems

Data logging and telecommunications equipment

Product Lifecycle

Obsolete

Alternative parts or upgrades should be considered

Several Key Reasons to Choose This Product

Provides reliable timekeeping for systems requiring long-term operation

Low power requirements extend the lifetime of battery-operated devices

Operates accurately across a wide range of temperatures and voltage conditions

Ease of design integration due to standard surface mount packaging and I2C support

The trickle-charger feature minimizes external component requirements for battery maintenance