DS17285-3

Real Time Clock Overview

The DS17285-3+ is a Real-Time Clock (RTC) integrated circuit manufactured by Analog Devices Inc. under the Maxim Integrated brand. It features a multiplexed bus interface and provides calendar, clock, and alarm functions with a date format of YY-MM-DD-dd and time format of HH:MM:SS (24 hr). The device includes 2 kB of storage capacity and operates within a supply voltage range of 2.7 V to 3.7 V. It is housed in a PDIP-24 package designed for through-hole mounting and supports an operating temperature range from 0°C to +70°C.

Real Time Clock Feature Summary

• Multiplexed bus interface for system integration
• Integrated 2 kB non-volatile RAM storage
• Calendar, clock, and alarm functionality
• PDIP-24 through-hole package

Real Time Clock Applications

• Industrial control systems requiring precise timekeeping
• Data logging equipment needing calendar tracking
• Embedded systems with multiplexed address/data buses

Real Time Clock Procurement Notes

The DS17285-3+ is listed as obsolete or end-of-life by the manufacturer. Availability is restricted, and distributors may not stock this item. Verification of current lifecycle status and alternative sourcing strategies is required before procurement planning.

Real Time Clock Selection Notes

Select this component only if the design utilizes a multiplexed bus architecture compatible with the DS17285 series. Ensure the power supply voltage remains within the 2.7 V to 3.7 V range. Verify that the PDIP-24 through-hole package fits the PCB layout constraints and that the commercial temperature range (0°C to +70°C) meets environmental requirements.

Real Time Clock Part Context

This part belongs to the DS17285 family of real-time clocks. It shares functional similarities with other variants like the DS17285S-5+, which offers a parallel interface and SOIC packaging. The suffix '3' typically denotes specific voltage or package variations within the product line.

Real Time Clock Replacement Considerations

Direct substitutes include the DS17285S-5+ for parallel interface applications or the DS12885T for TQFP packaging needs. Designers should verify pin compatibility and interface differences when transitioning to these alternatives.