18QHTF21-80.980992-PD

Overview

The 18QHTF21-80.980992-PD is a standard crystal oscillator manufactured by Mercury Electronic Ind., Co., Ltd. It operates at a frequency of 80.980992 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and features a power-down (standby) function for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. The component supports an operating temperature range from -40°C to 85°C.

Feature Summary

• Supports low-voltage operation at 1.8V with integrated standby capability
• Provides stable clock signals via LVCMOS output interface
• Designed for surface-mount assembly in space-constrained applications

Applications

• High-speed digital signal processing systems
• Communication equipment requiring precise timing references
• Embedded systems utilizing LVCMOS-compatible interfaces

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure that the 1.8V supply rail meets current consumption specifications during active and standby modes. Confirm compatibility with the 4-SMD no-lead footprint dimensions to avoid mechanical interference on the PCB layout.

Selection Notes

Select this model when a precise 80.980992 MHz clock source is required for LVCMOS logic families. Consider the 1.8V supply constraint and the need for power-down functionality. Evaluate the thermal performance within the -40°C to 85°C range to ensure reliability under operational conditions.

Part Context

This part belongs to the Mercury QHTF series of high-frequency crystal oscillators. The series is characterized by small form factors and low power consumption, suitable for portable and industrial electronics. Mercury Electronics leverages its expertise in quartz crystal manufacturing to provide reliable frequency control solutions.

Replacement Considerations

Direct substitutes include other 80.980992 MHz LVCMOS oscillators in 2.0x1.6mm packages from compatible manufacturers. Verify pinout compatibility and electrical parameters such as rise/fall times and duty cycle before substitution.