18QHTF21-57.623667-PD

Overview

The 18QHTF21-57.623667-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a fixed frequency of 57.623667 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 2.0x1.6 mm.

Feature Summary

• LVCMOS output logic interface
• Integrated standby and power-down functionality
• Compact 4-SMD no lead surface mount package

Applications

• General clock signal generation
• Digital system timing references
• Embedded electronics requiring low-voltage operation

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply rail is stable and within the operational limits specified in the official datasheet to ensure reliable oscillator performance and longevity.

Selection Notes

Select this component when a precise 57.623667 MHz reference is required in space-constrained designs. The choice is driven by the need for low-voltage compatibility and the inclusion of a power-down feature to manage system power consumption during idle states compared to continuous-operation alternatives.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz-based frequency control products. The series offers various frequencies within a standardized 2.0x1.6 mm footprint, allowing designers to maintain consistent board layouts while adjusting timing parameters across different product lines.

Replacement Considerations

Direct substitutes include other 18QHTF21 variants with identical pinout and form factor but different frequencies, such as 18QHTF21-6.000-PD or 18QHTF21-15.700-PD, provided the system timing requirements are adjusted accordingly.