DS17285S-3+T&R

$6.76

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

SKU:b11c520f2bec Category: Real Time Clocks Brand: Analog Devices Inc./Maxim Integrated

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Product introduction

DS17285S-3+T&R 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 24SOIC. Review the specifications below when checking this part for your BOM.

Real Time Clock specifications for DS17285S-3+T&R

Description：IC RTC CLK/CALENDAR PAR 24SOIC
Series：-
Package：Tape & Reel (TR)
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：Surface Mount
Grade：-
Qualification：-
Package / Case：24-SOIC (0.295", 7.50mm Width)
Supplier Device Package：24-SOIC

Real Time Clock datasheet and documents for DS17285S-3+T&R

DS17285S-3+T&R

Real Time Clock Overview

The DS17285S-3+T&R is a real-time clock (RTC) IC from Analog Devices/Maxim Integrated, designed as a successor to the DS12885. It provides a multiplexed byte-wide interface for accessing timekeeping and calendar registers. The device supports optional +3.0V operation with a supply voltage range of 2.7V to 3.7V on VCC. It includes a precision temperature-compensated circuit that automatically switches to a backup supply upon primary power failure. Key features include a silicon serial number, power-on/off control circuitry, and extended battery-backed NV SRAM.

Real Time Clock Feature Summary

Multiplexed byte-wide address/data bus interface
Real-time clock/calendar with leap year compensation through 2099
64-bit silicon serial number for unique identification
Power-control circuitry supporting system power-on via date/time alarm or key closure

Real Time Clock Applications

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

Real Time Clock Procurement Notes

Verify the specific suffix 'T&R' indicates tape-and-reel packaging when sourcing this component. Confirm the '-3+' designation corresponds to the 2.7V–3.7V VCC operating range. Ensure compatibility with the SO-24 package format required by the target PCB layout.

Real Time Clock Selection Notes

Select the DS17285S-3+ variant specifically for systems requiring a 3.0V nominal VCC supply. This model provides 2048 bytes of extended battery-backed NV SRAM compared to the base 114 bytes. Verify that the application can accommodate the multiplexed bus interface timing requirements.

Real Time Clock Part Context

This component belongs to the DS17x85 family, which serves as an enhanced replacement for the industry-standard DS12885 and DS12887 RTCs. The DS17285 variant specifically integrates 2kbytes of extended NV SRAM. It shares functional similarities with the DS17287 but lacks the integrated crystal and lithium energy source found in the EDIP package versions.