DS1302SN+T&R - Analog Devices Inc./Maxim Integrated

Manufacturer Part Number

DS1302SN+T&R

Manufacturer

Analog Devices

Introduction

The DS1302SN+T&R is a real-time clock (RTC) IC with serial interface from Analog Devices.

Product Features and Performance

Clock/Calendar function with Leap Year and NVSRAM

31-byte NVSRAM for data storage

Trickle-Charging Capability enhances shelf life of backup battery

Time format: HH:MM:SS with 12/24 hour mode

Date format: YY-MM-DD-dd

Low power consumption

Product Advantages

Maintains accurate timekeeping with low current draw

Backup battery voltage same as main supply to remove complexity

Simple 3-wire serial interface for easy integration

Integrated trickle-charge feature for VCC and VBAT inputs

Key Technical Parameters

Memory Size: 31B

Interface: 3-Wire Serial

Voltage - Supply: 2V ~ 5.5V

Voltage - Supply, Battery: 2V ~ 5.5V

Current - Timekeeping (Max): 0.3µA ~ 1µA @ 2V ~ 5V

Operating Temperature: -40°C ~ 85°C

Quality and Safety Features

Extended operating temperature range for harsh environments

Robust SOIC package for surface mount applications

Compatibility

Compatible with microcontrollers through its serial interface

Application Areas

Embedded systems

Consumer electronics

Office electronics

Industrial timekeeping

Portable devices

Product Lifecycle

Status: Active

No indication of discontinuation, replacements, or upgrades stated

Several Key Reasons to Choose This Product

High reliability and extended operating temperature suitable for a range of environments

Non-volatile RAM retains data without power

Trickle charge capability to preserve battery life

Compatible with many microcontrollers through serial interface

Provides full calendar functionality including leap years

Tape and Reel packaging for automated assembly processes

Maintains low power consumption for power-sensitive applications