QTM325-16.384MBE-T

Overview

The QTM325-16.384MBE-T is a surface-mount CMOS crystal oscillator manufactured by QST, operating at a nominal frequency of 16.384 MHz. It features a standard output signal and operates on a 3.3V supply voltage. The device exhibits a frequency stability of ±50 ppm and draws a maximum current of 10 mA during normal operation. Encased in a compact 4-SMD, No Lead package with dimensions of 3.2mm x 2.5mm x 1.0mm, it supports an operating temperature range from -40°C to +85°C. This component includes enable/disable functionality for power management.

Feature Summary

• CMOS output signal compatible with standard digital logic interfaces
• Integrated enable and disable control for active power management
• Compact 3.2mm x 2.5mm surface mount footprint for space-constrained designs

Applications

• Digital clock generation for microprocessors and FPGAs
• Data communication interface timing sources
• Embedded system master clock references

Procurement Notes

Verify the specific suffix 'BE' against the manufacturer's official datasheet to confirm the exact electrical characteristics, particularly the ±50 ppm stability and 3.3V supply requirements. Ensure the selected variant matches the required operating temperature range of -40°C to +85°C for the intended application environment. Cross-reference the package dimensions (3.2x2.5x1.0mm) with the PCB footprint design to guarantee mechanical compatibility.

Selection Notes

Select this component when a stable 16.384 MHz reference is required for CMOS-compatible digital circuits. The ±50 ppm stability suits general-purpose timing applications where high precision is not critical. Consider the 10 mA current consumption and 3.3V operating voltage to ensure adequate power budget allocation within the system design.

Part Context

This part belongs to the QST QTM325 series of surface-mount oscillators. The series offers various frequencies and packages, utilizing quartz resonator technology to provide precise timing signals. The QTM325 form factor is designed for automated assembly processes, supporting high-volume manufacturing in consumer electronics and industrial equipment.

Replacement Considerations

Direct substitutes include other 16.384 MHz CMOS oscillators in 3.2x2.5mm packages with ±50 ppm stability and 3.3V operation, such as the QTM325-16.384MDE-T or equivalent parts from other manufacturers like TXC or Epson, provided pinout and electrical specs match.