18QHTF21-75.640-PD

Overview

The 18QHTF21-75.640-PD is a 75.64 MHz crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a supply voltage of 1.8V and utilizes LVCMOS output logic. The component features a power-down function for standby mode control. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.

Feature Summary

• Supports low-voltage operation at 1.8V
• Includes power-down capability for energy management
• Provides standard LVCMOS signal output

Applications

• Digital clock generation
• Data communication interfaces
• Embedded system timing

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the official datasheet before integration. Confirm that the 1.8V supply rail stability meets the oscillator's specifications to ensure reliable performance. Ensure the PCB footprint matches the 2.0x1.6mm SMD package dimensions precisely.

Selection Notes

Select this component when a small form factor is required for 1.8V logic systems. It is suitable for applications needing a fixed 75.64MHz reference with power-down control. Consider the LVCMOS output compatibility with downstream digital circuits during the design phase.

Part Context

This part belongs to the Mercury Electronics XO series, designed for general-purpose clocking needs. The manufacturer specializes in quartz crystals and oscillators. The model number indicates the specific frequency and package type within their product line.

Replacement Considerations

Check for direct substitutes with identical 75.64MHz frequency, 1.8V supply, and 2.0x1.6mm package size. Verify pinout compatibility and electrical characteristics before swapping components.