The SP-T2A-F 32.768KHZ 10PPM/12.5PF is a tuning fork crystal resonator manufactured by SII Semiconductor Corporation. It is designed for applications requiring a precise and stable timekeeping reference, typically operating at a frequency of 32.768 kHz. This frequency is commonly used in real-time clocks (RTCs) due to its convenient division down to 1 Hz.

Applications

• Real-time clocks (RTCs): Provides the timing reference for accurate timekeeping.
• Microcontrollers: Used as a clock source for low-power microcontrollers.
• Wearable devices: Smartwatches, fitness trackers, and other wearable electronics.
• Metering devices: Electricity meters, gas meters, and water meters.
• Industrial control systems: Timing and synchronization in industrial automation.

Features

• Frequency: 32.768 kHz (kilohertz).
• Frequency tolerance: ±10 PPM (parts per million).
• Load capacitance: 12.5 pF (picofarads).
• Operating temperature range: Typically -40°C to +85°C (industrial temperature range).
• Small size: Compact package for space-constrained applications.
• High stability: Provides a stable and accurate timekeeping reference.
• Low aging: Minimal frequency drift over time.

Benefits

• Accurate timekeeping: Provides a precise and stable timekeeping reference.
• Low power consumption: Minimal power dissipation.
• Small size: Suitable for space-constrained applications.
• Wide operating temperature range: Operates reliably in harsh environments.
• High reliability: Ensures long-term stability and accuracy.
• Easy integration: Simple circuit design for easy integration into electronic circuits.

Additional Details

The SP-T2A-F crystal resonator typically comes in a surface-mount package. The 10 PPM frequency tolerance indicates that the actual frequency may vary by up to 10 parts per million from the nominal frequency of 32.768 kHz. The 12.5 pF load capacitance specifies the external capacitance required for the crystal to oscillate at its specified frequency. It is crucial to match the load capacitance specified by the crystal to the oscillator circuit for optimal performance. The crystal is typically used in conjunction with a crystal oscillator circuit, which provides the necessary feedback and amplification to sustain oscillation. Proper layout and grounding techniques are important for minimizing noise and ensuring stable operation. Consulting the datasheet from SII Semiconductor Corporation provides detailed information on electrical characteristics, mechanical dimensions, and application guidelines.