QTM325-54.000MBE-T

Overview

The QTM325-54.000MBE-T is a standard clock oscillator manufactured by QST, designed for surface-mount applications. It operates at a nominal frequency of 54.000 MHz with CMOS output levels. The device features a compact 3.2mm x 2.5mm SMD package and supports a supply voltage of 3.3VDC. It maintains a frequency stability of ±50ppm and functions within an operating temperature range of -40°C to +85°C. The component is RoHS compliant and available in reel packaging.

Feature Summary

• CMOS output signal generation for digital timing applications
• Compact 3.2x2.5mm surface-mount footprint
• Wide industrial temperature operation capability

Applications

• General-purpose clock signal distribution
• Microprocessor and microcontroller timing references
• Communication interface synchronization

Procurement Notes

Verify the specific frequency tolerance and load requirements against the target circuit design before procurement. Confirm that the 3.3V supply voltage aligns with the system power architecture. Ensure the CMOS output swing is compatible with the receiving logic inputs. Check for any specific environmental certifications required by the end application standards.

Selection Notes

Select this component when a precise 54MHz reference is required in a space-constrained design. Consider the ±50ppm stability limit for timing accuracy needs. Evaluate the CMOS output drive strength against the capacitive load of the connected traces. Compare thermal performance requirements against the -40°C to +85°C operational range.

Part Context

This oscillator belongs to the QTM325 series from QST, which provides various frequency options in a standardized small outline package. The series is commonly used in consumer electronics and industrial control systems where reliable timing signals are essential. It serves as a direct replacement for other 54MHz oscillators in similar form factors.

Replacement Considerations

Direct substitutes include other 54MHz CMOS oscillators in the 3.2x2.5mm package with compatible 3.3V operation. Verify pinout compatibility and output waveform characteristics before substitution. Alternative frequencies require retiming the entire system.