DS17287-3

Real Time Clock Overview

The DS17287-3 is a Real-Time Clock (RTC) integrated circuit manufactured by Analog Devices Inc./Maxim Integrated. It features a multiplexed bus interface and provides calendar and timekeeping functions with a date format of YY-MM-DD-dd and a 24-hour time format. The device includes 2 kB of RAM storage capacity. It operates within a supply voltage range of 2.7 V to 3.7 V and supports battery backup switching. The component is housed in an EDIP-24 package and is designed for operation at temperatures ranging from 0°C to +70°C.

Real Time Clock Feature Summary

• Multiplexed RTC bus interface
• 2 kB RAM storage capacity
• Battery backup switching capability
• EDIP-24 package

Real Time Clock Applications

• Real-time clock systems requiring 3V/5V operation
• Calendar and timekeeping applications
• Embedded systems utilizing multiplexed bus architectures

Real Time Clock Procurement Notes

Verify availability status as distribution channels may indicate limited stock or discontinuation. Confirm the specific suffix indicates the correct voltage variant (3V) and package type (EDIP-24). Ensure compatibility with system power supplies operating between 2.7 V and 3.7 V. Check for RoHS compliance documentation if required for the target assembly process.

Real Time Clock Selection Notes

Select this component when a multiplexed interface is required rather than parallel or serial alternatives. The 2 kB RAM distinguishes it from lower-capacity RTCs like the DS1687. Ensure the design accommodates the EDIP-24 through-hole form factor. Verify that the 0°C to +70°C industrial temperature range meets environmental requirements.

Real Time Clock Part Context

The DS17287-3 belongs to the DS17287 series of real-time clocks. It shares functional similarities with the DS17285 but differs in package style, with the DS17285 typically available in PDIP-24. Both devices offer 2 kB of RAM and multiplexed interfaces, catering to different PCB layout constraints.

Real Time Clock Replacement Considerations

The DS17287-5+ serves as a voltage-compatible alternative within the same series, differing primarily in the specific voltage tolerance or manufacturing lot characteristics defined by the suffix. The DS17285-3+ offers identical electrical specifications but utilizes a PDIP-24 package instead of EDIP-24.