DS17285-3+

Description：IC RTC CLK/CALENDAR PAR 24DIP
Series：-

SKU:9c908c474a7d Category: Real Time Clocks Brand: Analog Devices Inc./Maxim Integrated

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Product introduction

DS17285-3+ is listed in the Real Time Clock range at ChipApex. The manufacturer field lists Analog Devices Inc./Maxim Integrated. Its product description is IC RTC CLK/CALENDAR PAR 24DIP. Review the specifications below when checking this part for your BOM.

Real Time Clock specifications for DS17285-3+

Description：IC RTC CLK/CALENDAR PAR 24DIP
Series：-
Package：Tube
Mfr：Analog Devices Inc./Maxim Integrated
Type：Clock/Calendar
Features：Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output
Memory Size：2KB
Time Format：HH:MM:SS (12/24 hr)
Date Format：YY-MM-DD-dd
Interface：Parallel
Voltage - Supply：2.7V ~ 3.7V
Voltage - Supply, Battery：2.5V ~ 3.7V
Current - Timekeeping (Max)：2mA @ 2.7V ~ 3.7V
Operating Temperature：0°C ~ 70°C
Mounting Type：Through Hole
Grade：-
Qualification：-
Package / Case：24-DIP (0.600", 15.24mm)
Supplier Device Package：24-PDIP

Real Time Clock datasheet and documents for DS17285-3+

DS17285-3+

Real Time Clock Overview

The DS17285-3+ is a real-time clock (RTC) IC from Analog Devices/Maxim Integrated, designed as a successor to the DS12885. It features a multiplexed byte-wide interface and operates within a supply voltage range of 2.7V to 3.7V. The device provides a real-time clock/calendar with leap year compensation through 2099, one time-of-day alarm, three maskable interrupts, and a programmable square wave output. It includes 2048 bytes of battery-backed NV SRAM and 114 bytes of general-purpose RAM. The component utilizes an external 32.768kHz crystal and incorporates power-control circuitry for system wake-up capabilities.

Real Time Clock Feature Summary

Multiplexed byte-wide address/data bus interface
2048 bytes of extended battery-backed NV SRAM
Real-time clock/calendar with automatic leap year correction through 2099
Power-control circuitry supporting system power-on via kickstart or wake-up alarm

Real Time Clock Applications

Embedded Systems
Utility Meters
Security Systems
Network Hubs, Bridges, and Routers

Real Time Clock Procurement Notes

Verify component authenticity and physical condition upon receipt. Confirm that the ordering suffix '+3' corresponds to the specified 2.7V–3.7V operating voltage range. Ensure compatibility with the required PDIP-24 package style for the target PCB design.

Real Time Clock Selection Notes

Select this model when a 3V nominal supply is available, as indicated by the '-3+' suffix. Compare against the DS17285-5+ variant if a 4.5V–5.5V supply rail is present. Verify that the PDIP-24 through-hole package meets the assembly requirements of the host system.

Real Time Clock Part Context

The DS17285-3+ belongs to the DS17x85 family, which serves as an enhanced successor to the industry-standard DS12885. This family integrates RTC functionality with significant nonvolatile memory expansion. The specific -3+ designation denotes the commercial temperature range (0°C to +70°C) and the lower voltage operation capability compared to the -5+ variant.