18QHTF21-63.700-PD

Overview

The 18QHTF21-63.700-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 63.7 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes a standby or power-down capability for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm by 1.6mm. This component is designed for timing applications requiring precise clock signals in low-profile electronic systems.

Feature Summary

• Provides stable LVCMOS clock signal output
• Supports standby mode for power reduction
• Compact surface-mount package design

Applications

• General purpose digital timing circuits
• Communication equipment clock sources
• Embedded system microcontroller clocks

Procurement Notes

Verify the exact frequency suffix matches the required 63.700 MHz specification. Confirm the 1.8V supply voltage requirement aligns with the target circuit design. Ensure the 4-SMD no-lead package footprint fits the PCB layout constraints. Check for any specific operating temperature range requirements if used in extreme environments.

Selection Notes

Select this model when a 63.7 MHz LVCMOS oscillator is required. Consider the 1.8V operating voltage for compatibility with low-voltage logic families. The small 2.0x1.6mm package is suitable for space-constrained designs. Verify that the power-down feature meets system power management needs.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies within a standardized 1.8V LVCMOS format. The series provides consistent packaging and electrical characteristics across different frequency options, allowing for flexible design choices while maintaining form-factor compatibility.

Replacement Considerations

Direct substitutes include other 18QHTF21 variants with identical package and voltage but different frequencies, such as 18QHTF21-63.500-PD or 18QHTF21-64.000-PD, provided the frequency difference is acceptable for the application.