DS1384FP-12+

Real Time Clock Overview

The DS1384FP-12+ is a Watchdog Timekeeping Controller manufactured by Analog Devices Inc./Maxim Integrated. It integrates a real-time clock, alarm, watchdog timer, and interval timer within a 44-pin Quad Flat Pack (QFP) package. The device manages time tracking including hundredths of seconds, leap year compensation valid until 2100, and supports up to 128k x 8 bytes of external low-power CMOS static RAM. It features bytewide SRAM-like access for all RTC functions and onboard memory. The component requires only an external crystal and battery to maintain timekeeping and data retention in the absence of power.

Real Time Clock Feature Summary

• Integrates real-time clock, alarm, watchdog timer, and interval timer
• Supports up to 128k x 8 bytes of external static RAM with bytewide access
• 50 bytes of onboard user RAM
• Leap year compensation valid up to the year 2100

Real Time Clock Applications

• Processor reset control via watchdog timer functionality
• Scheduling real-time related activities using alarm function
• Data logging systems requiring non-volatile timekeeping and storage

Real Time Clock Part Context

The DS1384FP-12+ belongs to the DS1384 series of Watchdog Timekeeping Controllers. It is part of the broader portfolio of real-time clock and memory management solutions provided by Maxim Integrated, now under Analog Devices. This specific variant utilizes a 44-pin QFP package, distinguishing it from other pinouts or packages within the same functional family.

Real Time Clock Replacement Considerations

Verify pin compatibility and package dimensions when substituting. Ensure the replacement component supports the required external RAM interface and voltage levels. Confirm that the substitute offers equivalent watchdog timeout capabilities and leap year handling.