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The OEC12C887A is a real-time clock (RTC) module manufactured by ODIN. Below are the factual specifications, descriptions, and features:

Specifications:

• Manufacturer: ODIN
• Model: OEC12C887A
• Type: Real-Time Clock (RTC) Module
• Interface: Parallel (compatible with DS12C887)
• Timekeeping Accuracy: High precision with built-in crystal oscillator
• Power Supply:
• Voltage Range: Typically 4.5V to 5.5V
• Backup Battery: Built-in lithium battery for continuous timekeeping
• Clock Format: 12-hour or 24-hour selectable
• Date Format: Day, month, year (including leap year compensation up to 2100)
• Memory: Includes non-volatile RAM for data storage
• Operating Temperature Range: Industrial-grade (typically -40°C to +85°C)

Descriptions:

• The OEC12C887A is a drop-in replacement for the DS12C887 RTC module.
• It provides accurate timekeeping with minimal external components.
• Features a built-in lithium battery to maintain time and settings during power loss.
• Commonly used in embedded systems, industrial automation, and computing applications.

Features:

• Integrated Crystal Oscillator: Eliminates the need for an external crystal.
• Non-Volatile RAM: Retains time and user data during power interruptions.
• Programmable Alarms: Supports interrupt-driven alarms.
• Leap Year Compensation: Automatically adjusts for leap years.
• Parallel Interface: Easy integration with microcontrollers and processors.
• Industrial-Grade Reliability: Suitable for harsh environments.

This information is based on standard specifications for the OEC12C887A module. For precise details, refer to the official ODIN datasheet.