Manufacturer Part Number
DS1305EN+T&R
Manufacturer
Analog Devices
Introduction
Real-time clock with alarm, NVSRAM, and trickle-charging capabilities for time-sensitive applications
Product Features and Performance
Supports Clock/Calendar function
Features an Alarm functionality
Incorporates Leap Year compensation
Contains 96 Bytes of NVSRAM
Trickle-Charger for battery backup
SPI interface for communication
Supports both 12-hour and 24-hour time format
Compliant with YY-MM-DD-dd date format
Product Advantages
Maintains timekeeping with minimal power consumption
Extensive operating temperature range suitable for various environments
Support for multiple power supply voltages offers design flexibility
Key Technical Parameters
Memory Size: 96B
Time Format: HH:MM:SS (12/24 hr)
Date Format: YY-MM-DD-dd
Interface: SPI
Voltage - Supply: 2V ~ 5.5V
Voltage - Supply, Battery: 2V ~ 5.5V
Current - Timekeeping (Max): 25.3µA ~ 81µA @ 2V ~ 5V
Operating Temperature: -40°C ~ 85°C
Quality and Safety Features
Robust surface-mount package (20-TSSOP)
Designed for long-term reliability in various temperature ranges
Compatibility
Compatible with systems requiring SPI interface for RTC modules
Surface Mount suitable for automated PCB assembly
Application Areas
Electronic appliances with time-related functions
Data logging and telecommunications systems
Embedded systems needing accurate timekeeping
Product Lifecycle
Currently active status
Not nearing discontinuation at the knowledge cutoff date
Replacements or upgrades should be available through Analog Devices’ product line
Several Key Reasons to Choose This Product
Precision timekeeping capabilities suitable for time-critical applications
Low power consumption enhances battery life in portable designs
Flexible voltage supply options for diverse design requirements
SPI interface ensures easy integration with a majority of microcontroller systems
Extended operating temperature range makes it ideal for industrial applications
96 Bytes of NVSRAM provide additional storage for critical data
Built-in trickle-charger maintains timekeeping during power loss events
Produced by a reputable manufacturer in the semiconductor industry