Structured Manufacturing Data (2026)

Real-Time Clock Module

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Real-Time Clock Module used in the Computer, Electronic and Optical Product Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Real-Time Clock Module is characterized by the integration of Quartz Crystal Oscillator and RTC Integrated Circuit. In industrial production environments, manufacturers listed on CNFX commonly emphasize Quartz crystal construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A hardware component that provides precise timekeeping functionality for synchronization systems.

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Product Specifications

Technical details and manufacturing context for Real-Time Clock Module

Definition
A dedicated electronic module within an Industrial Synchronization Controller that maintains accurate real-time tracking, enabling coordinated timing across industrial processes and equipment. It serves as the time reference source for synchronization operations.
Working Principle
Utilizes a quartz crystal oscillator to generate stable clock signals, coupled with battery-backed memory to maintain timekeeping during power interruptions. Continuously counts seconds, minutes, hours, and dates while providing synchronization pulses to the controller.
Common Materials
Quartz crystal, Integrated circuit, Lithium battery
Technical Parameters
  • Clock accuracy measured in parts per million (ppm) Standard Spec
Components / BOM

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Real-Time Clock Module.

RTC Module Timekeeping Module real-time clock module with battery backup quartz crystal RTC module for synchronization industrial real-time clock hardware component RTC integrated circuit timekeeping module electronic manufacturing real-time clock board

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Industrial Synchronization Controller
View system integration details

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Not applicable (electronic component, no pressure rating)
other spec: Supply voltage: 1.8V to 5.5V, Timekeeping accuracy: ±2ppm to ±20ppm depending on crystal, Backup current: 0.25μA to 1μA
temperature: -40°C to +85°C (industrial grade), -20°C to +70°C (commercial grade)
Media Compatibility
✓ Embedded systems with battery backup ✓ Industrial automation controllers ✓ Telecommunications timing equipment
Unsuitable: High-vibration environments without proper shock mounting
Sizing Data Required
  • Required timekeeping accuracy (ppm)
  • Backup power source specifications (battery type/capacity)
  • Communication interface requirements (I2C, SPI, parallel)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Battery Depletion
Cause: Primary cell exhaustion due to continuous operation beyond rated lifespan, accelerated by high temperature environments or manufacturing defects.
Crystal Oscillator Drift
Cause: Frequency deviation from aging, mechanical stress, or temperature coefficient effects, leading to timing inaccuracies.
Maintenance Indicators
  • System logs showing time resets or 'CMOS checksum error' messages during boot
  • Inconsistent timestamping in data logs or network synchronization failures
Engineering Tips
  • Implement periodic battery voltage monitoring with predictive replacement scheduling before critical thresholds
  • Use temperature-compensated crystal oscillators (TCXO) and ensure proper mechanical mounting to minimize thermal/mechanical stress

Compliance & Manufacturing Standards

Reference Standards
ISO 9001:2015 Quality Management Systems IEC 60747-8:2010 Semiconductor devices - Discrete devices - Part 8: Field-effect transistors CE marking for EMC Directive 2014/30/EU
Manufacturing Precision
  • Timekeeping accuracy: +/- 2 minutes per month at 25°C
  • Operating temperature range: -40°C to +85°C
Quality Inspection
  • Frequency stability test using precision frequency counter
  • Environmental stress screening (temperature cycling and vibration)

Factories Producing Real-Time Clock Module

Manufacturer profiles with relevant production capability in China

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Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What is the purpose of the lithium battery in this real-time clock module?

The lithium battery provides backup power to maintain timekeeping and memory functions during main power interruptions, ensuring continuous precise time synchronization.

How accurate is the timekeeping provided by this RTC module?

Utilizing a high-stability quartz crystal oscillator, this module delivers precise timekeeping with minimal drift, typically within ±2 minutes per year, making it suitable for synchronization-critical applications.

What applications is this real-time clock module designed for?

This module is engineered for computer, electronic, and optical product manufacturing, including data loggers, embedded systems, network equipment, medical devices, and industrial automation systems requiring reliable time synchronization.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data basis: CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks for Computer, Electronic and Optical Product Manufacturing.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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