18QHTF21-8.064-PD

Overview

The 18QHTF21-8.064-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 8.064 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a standby or power-down function to reduce consumption. 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 standby mode capability
• Utilizes LVCMOS output interface

Applications

• General timing circuits
• Embedded systems requiring precise clock signals
• Portable electronic devices

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD no-lead package footprint matches your PCB layout constraints. Check for any RoHS compliance documentation if required by your manufacturing standards.

Selection Notes

Select this component when a small form factor is critical for space-constrained designs. The 1.8V operating voltage makes it suitable for modern low-power applications. Consider the LVCMOS output compatibility with your target microcontroller or FPGA. Evaluate the need for a power-down feature to manage energy efficiency during idle periods.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies within a 2.0x1.6mm package. Similar models include the 18QHTF21-8.000-PD and 18QHTF21-7.9875-PD, differing primarily in their nominal frequencies while sharing the same electrical characteristics and physical dimensions.

Replacement Considerations

Direct substitutes may include other 8.064 MHz XO components in a 2.0x1.6mm SMD package with LVCMOS outputs. Verify pinout compatibility and electrical specifications such as current consumption and startup time before substitution.