Manufacturer Part Number
DS1305E+T&R
Manufacturer
Analog Devices
Introduction
The DS1305E+T&R is a real-time clock/calendar IC from Analog Devices, used for timekeeping applications in electronic devices, packaged in Tape & Reel for automated assembly.
Product Features and Performance
Real-time clock/calendar with clock and calendar functions
Features include alarm, leap year compatibility, non-volatile SRAM, and trickle-charger
96B memory size
Time format: HH:MM:SS (12/24 hour)
Date format: YY-MM-DD-dd
SPI interface for communication
Supports a wide range of supply voltages from 2V to 5.5V
Product Advantages
Provides accurate timekeeping with minimal power consumption
NVSRAM for data retention without power
Integrated trickle-charger extends backup battery life
Alarm function and leap year compatibility enhance application functionality
Key Technical Parameters
Voltage Supply: 2V ~ 5.5V
Voltage Supply, Battery: 2V ~ 5.5V
Current Timekeeping (Max): 25.3µA ~ 81µA @ 2V ~ 5V
Operating Temperature: 0°C ~ 70°C
Mounting Type: Surface Mount
Package / Case: 20-TSSOP (0.173", 4.40mm Width)
Quality and Safety Features
Operates within a wide range of temperatures for reliability
Low timekeeping current for enhanced safety and energy efficiency
Compatibility
Compatible with devices requiring an SPI interface for clock/calendar functionalities
Application Areas
Consumer electronics
Telecommunication systems
Embedded systems
Industrial timekeeping applications
Product Lifecycle
Product status: Active
Not currently nearing discontinuation with continued manufacturer support for replacements or upgrades
Several Key Reasons to Choose This Product
High reliability and precision in timekeeping
Versatile power supply options facilitate integration into various circuit configurations
Low power consumption enhances device longevity
Integrated features like alarms and NVSRAM provide added value
Supplied in Tape & Reel format for ease of assembly in manufacturing