18QHTF21-73.142857-OE

Overview

The 18QHTF21-73.142857-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 73.142857 MHz and utilizes LVCMOS output logic levels. The component requires a supply voltage of 1.8V and includes enable/disable control functionality for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.

Feature Summary

• LVCMOS output interface
• Enable/Disable control pin
• Compact SMD footprint

Applications

• Digital clock signal generation
• Microcontroller system timing
• Communication interface synchronization

Procurement Notes

Verify the exact frequency tolerance and load capacitance requirements against the specific application circuit design. Confirm that the 1.8V supply rail stability meets the oscillator specifications to ensure consistent performance. Check for any specific mounting or reflow soldering profile constraints provided in the official datasheet before integration.

Selection Notes

Select this component when a precise 73.142857 MHz clock source is required in a low-voltage environment. Ensure the host circuit supports LVCMOS logic levels and has access to an enable signal if power saving is necessary. Verify that the physical space allows for the 2.0x1.6mm package size.

Part Context

This part belongs to the 18QHTF21 series of surface mount oscillators from Mercury Electronics. The series typically offers various frequencies within a small form factor. This specific model provides a non-standard frequency optimized for specific baud rates or pixel clocks, differing from common integer multiples like 10MHz or 25MHz.

Replacement Considerations

Direct replacements must match the 73.142857 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Cross-reference with other manufacturers offering identical electrical parameters and pinout compatibility to ensure functional equivalence without board redesign.