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Part No DS17885E-3+
Manufacturer Maxim Integrated
Catalog Clock/Timing - Real Time Clocks
Description Real-Time Clocks

Shipping Information

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Products specifications

Categories Integrated Circuits (ICs)
Manufacturer Maxim Integrated
Packaging Tray
Part Status Obsolete(EOL)
Type Clock/Calendar
Features Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output
Memory Size 8KB
Date Format YY-MM-DD-dd
Interface Parallel
Operating Supply Voltage 2.7 V ~ 3.7 V
Voltage - Supply, Battery 2.5 V ~ 3.7 V
Current - Timekeeping (Maximum) 2mA @ 2.7V ~ 3.7V
Operating Temperature Range 0°C ~ 70°C
Mounting SMD
Package 28-TSSOP (0.465", 11.80mm Width)
Manufacturer Package 28-TSOP
Win Source Part Number 1168960-DS17885E-3+
Manufacturer Homepage
Popularity Medium
Fake Threat In the Open Market 66 pct.
Supply and Demand Status Limited
Family Name DS17885
Introduction Date February 18, 2000
Halogen Free Compliant
Estimated EOL Date Obsolete
Alternative Parts
DS17885E-3; DS17885S-3+;  DS17885-3; 


Introducing the DS17885E-3+: A High-Precision RTC Module from Maxim Integrated

The DS17885E-3+ is a state-of-the-art real-time clock (RTC) module developed by Maxim Integrated, a company renowned for its innovative and reliable semiconductor products. This advanced RTC module is designed to provide precise timekeeping and is ideal for a wide range of applications in computing, embedded systems, industrial controls, and telecommunications.

Key Features

  • Integrated Battery Backup: The DS17885E-3+ comes with a built-in battery input that maintains accurate timekeeping even when the main power supply is interrupted. This ensures continuous operation and data integrity.
  • High Precision: With crystal-controlled timing accuracy, the module offers high precision that is critical for applications where exact timekeeping is paramount.
  • Extended Temperature Range: This RTC is designed to perform reliably across a wide temperature range, making it suitable for use in harsh environmental conditions.
  • Serial Interface: The device features a simple serial interface that facilitates easy integration with microcontrollers and other digital systems.
  • Programmable Alarm: The DS17885E-3+ includes a programmable alarm function that can be set to trigger on a specific date, day of the week, or time, providing flexibility for time-dependent operations.


The DS17885E-3+ is versatile and can be employed in various applications, including:

  • Embedded systems that require accurate time stamps for data logging or event scheduling.
  • Industrial control systems where timing is critical for process control and automation.
  • Telecommunication systems that rely on accurate timekeeping for data synchronization and network management.
  • Consumer electronics where functionality such as alarm clocks, digital watches, and personal organizers benefit from the RTC's capabilities.

Technical Specifications

The technical specifications of the DS17885E-3+ include:

  • 56-Byte, Battery-Backed, Nonvolatile (NV) RAM for data storage
  • Automatic power-fail chip deselect and write-protection
  • Two time-of-day alarms
  • Programmable square-wave output
  • Full BCD clock calendar with leap year compensation valid up to the year 2100

Maxim Integrated's DS17885E-3+ RTC module is a reliable and precise timekeeping solution that meets the needs of modern electronic systems. Its robust feature set and flexibility make it an excellent choice for designers looking for a high-quality RTC solution.

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