18QHTF21-65.300-OE

Overview

The 18QHTF21-65.300-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a fixed frequency of 65.3 MHz and utilizes LVCMOS output logic levels. The device is designed for low-voltage applications, functioning with a supply voltage of 1.8V. It features an active-low enable/disable control pin for power management flexibility. The component is housed in a compact 4-SMD, No Lead package with physical dimensions of 2.0mm x 1.6mm. This surface-mount oscillator is engineered for integration into space-constrained electronic circuits requiring precise timing signals.

Feature Summary

• Generates a stable 65.3 MHz clock signal using LVCMOS output interface
• Operates on a single 1.8V power supply rail
• Includes an enable/disable control function for power optimization
• Utilizes a small-footprint 4-SMD no-lead package design

Applications

• General-purpose digital circuit timing references
• Embedded systems requiring low-voltage clock sources
• Portable electronics with space constraints
• Communication modules needing precise frequency stability

Procurement Notes

Verify the specific suffix 'OE' to confirm the presence of the enable/disable pin functionality, as this distinguishes it from standard variants without control inputs. Ensure the 1.8V supply voltage aligns with your system's power architecture before procurement. Confirm that the 4-SMD no-lead package footprint matches your PCB layout requirements. Cross-reference the manufacturer datasheet for detailed electrical specifications and thermal handling guidelines to ensure reliable operation within your intended environment.

Selection Notes

Select this component when a 65.3 MHz frequency is required alongside low-power consumption capabilities. The 1.8V operating voltage makes it suitable for modern battery-powered or low-voltage logic families. The enable feature allows for dynamic power management, which is critical for energy-efficient designs. Consider the 2.0x1.6mm package size if board real estate is limited. Ensure compatibility with LVCMOS input thresholds of downstream components to guarantee proper signal integrity and noise margins during operation.

Part Context

This oscillator belongs to the Mercury Electronics XO series, which provides standard frequency generation solutions. The '18QHTF21' prefix indicates the series characteristics, while the numeric suffix denotes the specific frequency. The '-OE' suffix specifies the output type and control features. Mercury Electronics specializes in quartz-based timing components, offering various packages and frequencies to meet diverse industrial and consumer electronics needs.

Replacement Considerations

Direct substitutes include other 65.3 MHz LVCMOS oscillators in similar SMD packages from compatible manufacturers. Verify that replacement parts support the same 1.8V supply voltage and enable/disable functionality. Check pinout compatibility to ensure seamless integration without PCB redesign. Alternative part numbers may exist within the same product family, such as those with different suffixes indicating varied control features or packaging options.