18QHTF21-17.64317-PD

Oscillators Overview

The 18QHTF21-17.64317-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 17.64317 MHz and utilizes an LVCMOS output interface. The device is designed for a supply voltage of 1.8V and features a standby or power-down control function. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0mm x 1.6mm.

Oscillators Feature Summary

• LVCMOS output interface for digital logic compatibility
• Integrated standby or power-down control functionality
• Compact surface-mount package design

Oscillators Applications

• General purpose timing circuits
• Digital signal processing systems
• Communication equipment clock sources

Oscillators Procurement Notes

Verify the specific operating voltage and output type against the official datasheet to ensure compatibility with the target circuit design. Confirm that the 1.8V supply requirement aligns with the system power rails. Ensure the 4-SMD no-lead package footprint matches the PCB layout specifications before finalizing procurement orders.

Oscillators Selection Notes

Select this component when a precise 17.64317 MHz clock source is required with low-voltage operation. The integrated power-down feature makes it suitable for applications requiring energy management. Ensure the system supports LVCMOS signaling levels and has adequate space for the small form factor package.

Oscillators Part Context

This part belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronics. The series offers various frequencies and package options. The suffix PD indicates the presence of a power-down control pin, distinguishing it from versions without such control.

Oscillators Replacement Considerations

Direct replacements must match the 17.64317 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify pinout compatibility, particularly the power-down control pin assignment, before substituting with other manufacturers' components.