18QHTF21-58.700-PD

Overview

The 18QHTF21-58.700-PD is a crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 58.7 MHz with an LVCMOS output logic level. The device supports a supply voltage of 1.8V and includes a standby or power-down function. It is housed in a 4-SMD, No Lead package with dimensions of 2.0x1.6 mm.

Feature Summary

• Supports LVCMOS output logic for standard digital interfacing
• Includes standby mode capability for power management
• Utilizes surface mount packaging for compact integration

Applications

• General purpose clock signal generation
• Digital circuit timing reference
• Embedded system clock sources

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target application design before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the 2.0x1.6 mm footprint matches the PCB layout constraints. Check for any specific operating temperature range limitations defined in the official datasheet to guarantee reliability under environmental stress conditions.

Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside a precise 58.7 MHz clock signal. The LVCMOS output is suitable for standard CMOS logic families. Consider the small 2.0x1.6 mm package size if board space is limited. The standby feature offers energy efficiency benefits for battery-powered or power-sensitive applications requiring periodic clock activity.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz crystal frequency control products. The series features surface mount packages and covers various frequencies up to several hundred MHz. Mercury has been a pioneer in Taiwan's quartz crystal manufacturing industry since 1973, offering both standard and programmable oscillator solutions.

Replacement Considerations

Direct substitutes include other 18QHTF21 variants with different frequencies such as 18QHTF21-6.000-PD or 18QHTF21-38.680-PD, provided the frequency difference is acceptable. Cross-referencing with other manufacturers' 1.8V LVCMOS oscillators in 2.0x1.6mm packages may be necessary if Mercury parts are unavailable, ensuring pinout and electrical compatibility.