DS12C887 Real-Time Clock IC 24-Pin EDIP with 113B RAM and Parallel Interface 4.5-5.5V

Name: DS12C887 Real-Time Clock IC 24-Pin EDIP with 113B RAM and Parallel Interface 4.5-5.5V
Brand: Sanhuang electronics (Hong Kong) Co., Limited

Professional DS12C887 real-time clock IC with integrated crystal and battery in 24-pin EDIP package. Features 113B battery-backed RAM, programmable square wave output, three maskable interrupts, and automatic power-fail detection. Direct replacement for IBM AT systems with UL recognition and industrial temperature range support.

Operating Temperature 0°C ~ 70°C

Packaging Details anti-static bag & cardboard box

Model Number DS12C887

Mounting Type Through Hole

Supply Ability In stock

Supplier Device Package 24-EDIP

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Product Description

DS12C887 Real-Time Clock IC with Parallel Interface

The DS12C887 is a high-performance real-time clock IC designed as a direct replacement for IBM AT computer clock/calendar systems. This 24-pin EDIP package integrates a quartz crystal and lithium energy source for reliable timekeeping.

Key Features

Direct drop-in replacement for IBM AT computer clock/calendar
Real-time clock counts seconds, minutes, hours, day, date, month, and year with leap year compensation through 2099
113 bytes of battery-backed static RAM for data retention
12-hour or 24-hour clock modes with AM/PM indication
Programmable square wave output and three maskable interrupts
Automatic power-fail detection and switch circuitry
Selectable Intel or Motorola bus timing compatibility
Daylight saving time option and end-of-clock update cycle flag
UL Recognized for safety compliance

Technical Specifications

Attribute	Specification
Manufacturer	Maxim Integrated
Product Category	Real Time Clocks
Package Type	24-DIP Module (0.600", 15.24mm)
Operating Temperature	0°C ~ 70°C
Mounting Type	Through Hole
Interface	Parallel
Voltage Supply	4.5V ~ 5.5V
Battery Voltage	2.5V ~ 4V
Current Consumption	15mA @ 4.5V ~ 5.5V
Memory Capacity	113B
Time Format	HH:MM:SS (12/24 hr)
Date Format	YY-MM-DD-dd

Applications

Ideal for embedded systems, industrial automation, computer motherboards, data loggers, and any application requiring reliable timekeeping with battery backup.

UL RecognizedIndustrial GradeBattery Backup