18QHTF21-7.1591-PD

Overview

The 18QHTF21-7.1591-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 7.1591 MHz and utilizes an LVCMOS output signal format. The device supports a supply voltage of 1.8V and features a standby or power-down function for energy management. It is housed in a compact 4-SMD, no lead package suitable for surface mount applications.

Feature Summary

• Supports low voltage operation at 1.8V
• Includes standby and power-down functionality
• Provides LVCMOS output signal compatibility

Applications

• General purpose clock generation
• Digital circuit timing references
• Embedded system synchronization

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your design specifications before ordering. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD no lead package dimensions fit within your PCB footprint constraints. Check for any specific RoHS compliance documentation if required by your manufacturing standards.

Selection Notes

Select this component when a precise 7.1591 MHz reference is needed with low power consumption capabilities. The LVCMOS interface ensures compatibility with standard digital logic families. Consider the physical size of the 4-SMD package for space-constrained designs. Evaluate the standby feature benefits for battery-operated or power-sensitive applications requiring periodic sleep modes.

Part Context

This part belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronics. The series offers various frequencies including 51.2 MHz and 15.7 MHz variants. All models share similar packaging and electrical characteristics such as 1.8V operation and LVCMOS outputs. The series is designed for surface mount technology integration.

Replacement Considerations

Direct substitutes include other 18QHTF21 series parts like 18QHTF21-15.700-PD or 18QHTF21-51.200-PD if different frequencies are acceptable. Verify pinout and package compatibility when considering alternative manufacturers. No direct cross-brand replacements are confirmed in public data.