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MAXIM INTEGRATED / ANALOG DEVICES DS12887 Real-Time Clock IC

The DS12887+ is a real-time clock IC housed in a 24-pin DIP package. It provides accurate timekeeping with features such as a calendar that automatically adjusts for months with fewer than 31 days and leap years. The device supports both 12-hour and 24-hour formats with an AM/PM indicator and includes a precision temperature-compensated circuit that monitors VCC power status. If primary power fails, it seamlessly switches to a backup lithium energy source. It includes battery-backed static RAM with 114 bytes, programmable square wave output, and three maskable interrupts with a common output. The IC offers a multiplexed byte-wide interface supporting both Intel and Motorola modes and is compatible as a drop-in replacement for IBM AT computers' clock/calendar. It counts seconds, minutes, hours, day, date, month, and year (up to 2099), with options for binary or BCD time representation and daylight saving time. The device operates with a supply voltage between 4.5V and 5.5V and functions within an ambient temperature range of 0°C to 70°C. Suitable applications include clock and timing systems, security, communications and networking, metering, and embedded systems.

Authorized Distributors
Source:Newark
Part No:DS12887+
Stock:2603
Inv Date:06-06-2026
Price: Unit price: $18.99
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Source:DigiKey
Part No:DS12887+
Stock:1881
Inv Date:06-06-2026
Price: Unit price: $20.15
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Part No:DS12887+
Stock:637
Inv Date:06-07-2026
Price: Unit price: $19.24
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Part No:DS12887
Stock:0
Inv Date:06-07-2026
Price: N/A
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Part No:DS12887+
Stock:0
Inv Date:06-06-2026
Price: Unit price: $9.71
Buy/RFQ:

MAXIM INTEGRATED / ANALOG DEVICES DS12887 Real-Time Clock IC Specifications:

  • Package: 24-pin DIP
  • Supply Voltage: 4.5V to 5.5V
  • Backup Battery Input: Yes, lithium coin cell compatible
  • Number of Battery-Backed RAM Bytes: 114 bytes
  • Timekeeping: Seconds, Minutes, Hours, Day, Date, Month, Year (up to 2099)
  • Supported Formats: Binary or BCD
  • Calendar Adjustment: Follows Gregorian calendar, leap year correction
  • Time Format: 12-hour or 24-hour with AM/PM indicator
  • Alarm and Interrupts: 3 maskable interrupts, common output
  • Square Wave: Programmable output
  • Temperature Range: 0°C to 70°C
  • Operation Mode: Monitored VCC, switching to backup on power failure
  • Interface: Multiplexed byte-wide, supports both Intel and Motorola modes

Buy the Maxim DS12887 – Reliable Real-Time Clock for Industrial Applications

Purchase the Maxim DS12887 real-time clock IC online now—engineered for accuracy and dependable performance. Its automatic calendar, backup RAM, programmable square wave, and maskable alarms suit industrial, security, and networking systems. Designed for easy integration with a multiplexed byte-wide interface supporting both Intel and Motorola modes, this device ensures precise timekeeping from 0°C to 70°C. Compatible as a drop-in replacement for IBM AT clocks, it features a lithium backup battery, supporting up to 2099, with a wide operating voltage of 4.5V to 5.5V. Buy today for reliable system timing and clock management.

Get Maxim DS12887 today—built for precision, long-lasting durability, and seamless integration into clock and timing systems.

Frequently Asked Questions

Where can I buy MAXIM INTEGRATED / ANALOG DEVICES DS12887?

You can click on the BUY or RFQ button to purchase DS12887 from an authorized MAXIM INTEGRATED / ANALOG DEVICES distributor.

How do I troubleshoot issues or seek technical support for part DS12887?

You can download the DS12887 datasheet or visit the MAXIM INTEGRATED / ANALOG DEVICES website for support.

Who is the manufacturer of DS12887?

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