18QHTF21-6.770-PD

Overview

The 18QHTF21-6.770-PD is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 6.77 MHz and utilizes LVCMOS output logic levels. The device supports a supply voltage of 1.8V and includes a standby or power-down function for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm.

Feature Summary

• Supports low voltage operation at 1.8V
• Integrates standby mode for power reduction
• Provides LVCMOS signal output compatibility

Applications

• Battery-powered electronic devices
• Portable consumer electronics
• General-purpose timing circuits

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the official datasheet before integration. Confirm that the 1.8V supply rail aligns with system design constraints. Ensure the 4-SMD no-lead package footprint matches the PCB layout specifications to guarantee proper soldering and mechanical stability during assembly.

Selection Notes

Select this component when a precise 6.77 MHz clock source is required for low-power applications. The LVCMOS interface ensures compatibility with standard digital logic families. The integrated power-down feature makes it suitable for systems requiring active and idle states. Verify environmental operating ranges if deployed in extreme conditions.

Part Context

Mercury Electronic Ind. Co., Ltd. is a Taiwan-based manufacturer specializing in frequency control products since 1973. The company produces quartz crystals, oscillators, and filters. This model belongs to their series of surface-mount crystal oscillators designed for compact electronic assemblies.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.