DS1644-120
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- Mfr.Part #
- DS1644-120
- Manufacturer
- Analog Devices, Inc.
- Package / Case
- 28-DIP Module (0.600, 15.24mm)
- Datasheet
- Download
- Description
- IC RTC CLK/CALENDAR PAR 28-EDIP
- Stock
- 14,738
- In Stock ：
- 14,738
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- Manufacturer :
- Analog Devices, Inc.
- Product Category :
- Real Time Clocks
- Current - Timekeeping (Max) :
- 4mA @ 4.5V~5.5V
- Terminal Position :
- Dual
- Volatile :
- No
- Voltage - Supply :
- 4.5V~5.5V
- Operating Temperature :
- 0°C~70°C
- Mounting Type :
- Through Hole
- Interface :
- Parallel
- Type :
- Clock/Calendar
- Reach Compliance Code :
- not_compliant
- Base Part Number :
- DS1644
- Number of Pins :
- 28
- Terminal Pitch :
- 2.54mm
- JESD-609 Code :
- e3
- Interrupt Capability :
- N
- Power Supplies :
- 5V
- Package / Case :
- 28-DIP Module (0.600, 15.24mm)
- Lead Free :
- Lead Free
- Pbfree Code :
- yes
- Time-Min :
- SECONDS
- ECCN Code :
- EAR99
- Peak Reflow Temperature (Cel) :
- NOT SPECIFIED
- Qualification Status :
- Not Qualified
- HTS Code :
- 8473.30.11.80
- Packaging :
- Tube
- Terminal Finish :
- Matte Tin (Sn)
- Memory Size :
- 32kB
- Published :
- 2005
- Date Format :
- YY-MM-DD-dd
- External Data Bus Width :
- 8
- Surface Mount :
- No
- Pin Count :
- 28
- Feature :
- Leap Year, NVSRAM
- Time@Peak Reflow Temperature-Max (s) :
- NOT SPECIFIED
- Number of Terminations :
- 28
- Access Time :
- 120 ns
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Time Format :
- HH:MM:SS (24 hr)
- Supply Voltage :
- 5V
- RoHS Status :
- ROHS3 Compliant
- Datasheets
- DS1644-120
Real Time Clocks Analog Devices, Inc. DS1644-120 Overview
The DS1644-120 by Analog Devices, Inc. is a high-performance integrated circuit that combines the functionalities of a real-time clock and calendar with NV SRAM. This unique design not only ensures accurate timekeeping but also provides a reliable non-volatile storage solution, all in a compact 28-pin EDIP package. The integration of a real-time clock with non-volatile memory makes the DS1644-120 an ideal choice for applications requiring fault-tolerant timekeeping and data retention without the need for an external battery. Its precise time-tracking capabilities backed by a robust feature set make it indispensable for complex electronic systems. Employing the Real Time Clocks Analog Devices, Inc. DS1644-120 ensures systems maintain accurate time and data even in the event of a power failure, enhancing system reliability and performance.
DS1644-120 Features
- Integrated real-time clock, calendar, and NV SRAM
- 28-pin EDIP package for easy integration
- Battery-backed operation ensures data integrity during power losses
- Provides 100 years of leap year compensation
- Serial interface for straightforward communication with microprocessors
DS1644-120 Applications
- Embedded Systems: Utilized for maintaining system time and storing critical data across reboots and power outages.
- Industrial Automation: Employs reliable timekeeping and data storage capabilities to manage schedules and operational data in manufacturing processes.
- Telecommunication: Ensures network equipment like switches and routers maintain accurate log timestamps and operational settings even after power disruptions.
- Medical Devices: Used in medical monitoring systems to keep track of time-sensitive data and ensure data consistency post power loss.
- Consumer Electronics: Applied in devices like set-top boxes and smart home controllers for accurate time management and user preferences storage.
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