18QHTF21-14.7456-OE

Oscillators Overview

The 18QHTF21-14.7456-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 14.7456 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes an enable/disable control feature. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm.

Oscillators Feature Summary

• Generates a precise 14.7456 MHz clock signal using LVCMOS logic levels
• Operates on a low 1.8V power supply for energy efficiency
• Features an active-low or high enable pin for power management control
• Utilizes a small form factor surface-mount package for space-constrained designs

Oscillators Applications

• Digital signal processing systems requiring stable clock sources
• Communication interfaces such as UART, SPI, or I2C buses
• Microcontroller and FPGA clock generation circuits
• Portable electronic devices with strict size and power limitations

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the PCB footprint matches the 2.0x1.6 mm SMD package dimensions to avoid assembly issues. Check for any specific reflow soldering profile recommendations provided by the manufacturer.

Oscillators Selection Notes

Select this component when a 14.7456 MHz frequency is required for video or audio synchronization standards. The LVCMOS output is suitable for direct interfacing with digital logic families operating at 1.8V. Consider the enable function if power conservation during idle states is critical. The small package size makes it ideal for dense PCB layouts where larger oscillators cannot fit.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies in a standardized 2.0x1.6 mm package. The series supports both 1.8V and 2.5V operation depending on the specific suffix. These oscillators are designed for general-purpose timing applications in consumer electronics and industrial equipment.

Oscillators Replacement Considerations

Direct substitutes include other 14.7456 MHz LVCMOS oscillators in 2.0x1.6 mm packages from manufacturers like Epson, SiTime, or TXC. Ensure the replacement maintains the same supply voltage, output logic type, and pin configuration. Verify that the new component meets the same temperature range and stability specifications.