Manufacturer Part Number
DS1338U-33+
Manufacturer
Analog Devices
Introduction
The DS1338U-33+ is a real-time clock component for clock/timing applications.
Product Features and Performance
Real-Time Clock/Calendar (RTC)
Supports Leap Year Compensation
Non-Volatile SRAM (NVSRAM)
Square Wave Output Functionality
Convenient I2C Serial Interface
Low-Power Consumption
Product Advantages
Robust timekeeping under varying conditions
Data retention without power due to NVSRAM
Programmable square wave for timing use
Extended operating temperature range
Key Technical Parameters
Memory Size: 56 bytes
Time Format: HH:MM:SS (12/24 hour)
Date Format: YY-MM-DD-dd
Interface: I2C, 2-Wire Serial
Voltage - Supply: 3V to 5.5V
Voltage - Supply, Battery: 1.3V to 3.7V
Current - Timekeeping: 125µA ~ 200µA at 3.63V to 5.5V
Operating Temperature: -40°C to +85°C
Mounting Type: Surface Mount
Package / Case: 8-TSSOP, 8-MSOP
Quality and Safety Features
High-reliability integrated circuit
Ensures timekeeping accuracy across temperature extremes
Compatibility
Compatible with devices that support I2C communication and 3.3V to 5.5V power supplies
Application Areas
Consumer Electronics
Embedded Systems
Industrial Applications
Communication Infrastructure
Portable Devices
Product Lifecycle
Status: Active
Not currently nearing discontinuation, replacements or upgrades should be available if needed
Several Key Reasons to Choose This Product
High-reliability timekeeping even in extreme temperatures
Versatile supply voltage range for easy integration
Energy-efficient operation for portable/battery-powered devices
Non-volatile memory preserves data without power
Standard I2C interface for simple integration with most microcontrollers
Small form factor TSSOP and MSOP packages for space-constrained applications
DS1338U-3+T&RAnalog Devices / Maxim Integrated
DS1338U-33+TRDALLAS