Crystal 32kHz
The 32.768kHz crystal oscillator is a low-frequency quartz crystal widely used for precise timing applications. It is commonly used in real-time clock (RTC) modules, AVR microcontrollers, wearable devices, IoT systems, and low-power electronics. With high frequency stability, low power consumption, and compact size, it ensures accurate timekeeping and reliable operation. It features ±20ppm to ±50ppm tolerance, operates from -40°C to +85°C, and is ideal for battery-powered and embedded systems requiring precise clock signals.
كريستال 32.768 كيلوهرتز هو مذبذب كوارتز منخفض التردد يُستخدم على نطاق واسع في تطبيقات التوقيت الدقيق. يُستخدم بشكل شائع في وحدات الساعة الحقيقية (RTC)، ومتحكمات AVR، والأجهزة القابلة للارتداء، وأنظمة إنترنت الأشياء، والإلكترونيات منخفضة الاستهلاك للطاقة. يتميز بثبات عالي في التردد واستهلاك طاقة منخفض وحجم صغير، مما يضمن دقة التوقيت والاعتمادية. يعمل ضمن مدى حراري من -40 إلى +85 درجة مئوية مع دقة تصل إلى ±20ppm.
The 32.768kHz crystal oscillator is a precision quartz-based timing component designed for low-frequency clock generation. It is most commonly used in Real-Time Clock (RTC) circuits and microcontroller-based systems where accurate timekeeping is essential. The frequency 32.768kHz is specifically chosen because it equals 2¹⁵ (32768 Hz), allowing simple binary division to produce a precise 1 Hz signal for seconds counting.
This crystal is widely used in microcontrollers such as AVR devices, embedded systems, IoT products, wearable electronics, and portable battery-powered equipment. Due to its low power consumption and stable oscillation characteristics, it is ideal for applications that require continuous timing even during low-power or sleep modes.
Manufactured from high-purity quartz, the crystal offers excellent frequency stability, low aging rate, and reliable performance over a wide temperature range. Its compact cylindrical package makes it suitable for space-constrained designs.
Specifications
Frequency: 32.768kHz
Frequency Tolerance: ±20ppm to ±50ppm at 25°C
Operating Temperature Range: -40°C to +85°C
Aging: ±3ppm per year (typical)
Shunt Capacitance: 1.0pF maximum
Equivalent Series Resistance (ESR): ≤70kΩ
Package Dimensions: Approximately 2mm diameter × 6mm length
Material: High-purity quartz crystal
Applications
Real-Time Clock (RTC) modules
Microcontroller timing circuits (AVR, embedded systems)
Wearable electronics (smartwatches, fitness trackers)
IoT devices and smart sensors
Portable medical equipment
Energy meters
Environmental monitoring systems
Industrial backup timing systems
Low-power battery-operated electronics