EC5645ETTTS-27.000M TR

Oscillators Overview

The EC5645ETTTS-27.000M TR is a standard clock oscillator manufactured by Ecliptek, operating at a nominal frequency of 27 MHz. It utilizes LVCMOS output format and requires a 3.3 VDC supply voltage with a tolerance of ±0.3 VDC. The device features a frequency stability of ±50 ppm and an aging rate of ±5 ppm per year maximum. It supports tri-state functionality for enable/disable control. The component is housed in a ceramic surface-mount package measuring 5 mm by 7 mm with four pads. It operates within a temperature range of -40°C to +85°C.

Oscillators Feature Summary

• Provides stable 27 MHz clock signals using LVCMOS output logic levels.
• Includes tri-state capability allowing for active enable or disable functions via Pin 1.
• Constructed with a ceramic surface-mount body suitable for automated assembly processes.

Oscillators Applications

• General-purpose digital system clock generation
• Embedded controller timing references
• Communication interface synchronization

Oscillators Procurement Notes

Verify the specific suffix configuration against the manufacturer's current documentation to ensure compatibility with required supply voltages and output formats. Confirm that the ceramic SMD package dimensions align with the target PCB footprint. Ensure environmental specifications meet the operational temperature requirements of the final application environment before procurement.

Oscillators Selection Notes

Select this component when a 27 MHz frequency is required with LVCMOS compatibility and a 3.3V supply constraint. Consider the ±50 ppm stability requirement against system jitter budgets. Evaluate the 5 mm x 7 mm package size against available board space. Verify that the tri-state feature is necessary for the specific bus architecture design.

Oscillators Part Context

This part belongs to the EC56 series of high-frequency oscillators from Ecliptek. The series offers various frequency options and voltage levels while maintaining consistent physical dimensions and LVCMOS output characteristics. It serves as a direct replacement for legacy discrete crystal oscillator circuits in compact electronic designs requiring precise timing sources.

Oscillators Replacement Considerations

Direct substitutes include other 27 MHz LVCMOS oscillators with identical 3.3V operation and similar pinout configurations. Cross-reference mechanical drawings to ensure the 5x7mm footprint matches existing layouts. Verify electrical parameters such as rise/fall times and load capacitance requirements match the driving circuit constraints.