DS12887 Real Time Clock Module 4.5V-5.5V DIP-18 by Bridgold

Description

Product Overview

The DS12887 is a high‑precision real‑time clock (RTC) integrated circuit designed by Bridgold for demanding industrial and scientific applications. Housed in a rugged 18‑pin DIP package, the device operates reliably across a wide supply voltage range of 4.5 V to 5.5 V, ensuring stable performance even in environments with fluctuating power conditions. Its internal oscillator, calibrated for low drift, maintains accurate timekeeping over long periods, while the built‑in power‑fail detection circuitry safeguards the clock data against unexpected outages.

Key architectural features include binary and binary‑coded‑decimal (BCD) time representation, allowing seamless integration with a variety of microcontroller architectures. The clock supports both 12‑hour and 24‑hour modes, automatically handling AM/PM transitions when configured for 12‑hour operation. A dedicated 128‑byte RAM area provides flexible storage for user‑defined data, enabling developers to embed configuration parameters or sensor readings directly within the RTC.

Usage

Designed for versatility, the DS12887 finds use in a broad spectrum of equipment ranging from factory automation controllers and programmable logic devices to portable data loggers and embedded monitoring stations. Its compact DIP‑18 footprint makes it easy to mount on standard printed circuit boards, while the wide voltage tolerance accommodates both battery‑powered and mains‑derived power supplies. Engineers often employ the RTC in applications that require precise time‑of‑day stamping, such as event logging, scheduled task execution, and synchronized data acquisition.

In harsh industrial settings, the device’s interrupt output pins provide three independently maskable flags, enabling rapid response to alarm conditions, power‑loss events, or periodic wake‑up signals. This capability is especially valuable for systems that must conserve energy by entering low‑power states and then resume operation at predetermined intervals. The DS12887’s robust design also meets the stringent reliability standards expected in aerospace, automotive, and medical instrumentation where timing accuracy is mission‑critical.

Why Choose Us

Bridgold’s reputation for delivering dependable semiconductor solutions is reflected in the DS12887’s rigorous quality assurance processes. Each unit undergoes comprehensive testing for voltage tolerance, temperature stability, and timing accuracy before it reaches the market, ensuring that customers receive a component that performs consistently across its entire operational envelope.

Beyond the hardware, Bridgold offers extensive technical support, including detailed datasheets, reference designs, and application notes that accelerate development cycles. Our engineering team is available to assist with integration challenges, firmware optimization, and troubleshooting, providing a partnership that extends well beyond the point of sale. This commitment to customer success, combined with the DS12887’s feature‑rich design, makes it a compelling choice for engineers seeking a reliable timing solution.

Key Features

• Wide 4.5‑5.5 V operating range ensures stable performance in diverse power environments.
• Binary and BCD time formats simplify integration with both modern and legacy microcontrollers.
• 12‑hour and 24‑hour clock modes with automatic AM/PM handling for flexible user interfaces.
• Three independent interrupt flags provide rapid response to alarms, power‑fail, and periodic events.
• Comprehensive technical support and documentation from Bridgold guarantee a smooth development experience.

FAQ

What voltage range does the DS12887 support?

The DS12887 operates reliably from 4.5 V up to 5.5 V, making it suitable for both battery‑powered and regulated power supplies.

Can the DS12887 be used with a microcontroller that only supports binary time format?

Yes, the device offers both binary and BCD time representations, allowing you to select the format that best matches your microcontroller’s capabilities.

How many interrupt sources are available and how are they configured?

Three independent interrupt flags are provided. Each flag can be masked or enabled through the control registers, giving you precise control over alarm, power‑loss, and periodic wake‑up signals.

Is there on‑chip RAM for storing user data?

Indeed, the DS12887 includes 128 bytes of static RAM that can be used to store configuration parameters, sensor readings, or any other application‑specific data.

What kind of support does Bridgold offer for integrating the DS12887?

Bridgold supplies detailed datasheets, reference schematics, firmware libraries, and direct engineering assistance to help you integrate the RTC quickly and efficiently.