18QHTF21-17.7344-PD

Oscillators Overview

The 18QHTF21-17.7344-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 17.7344 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a power-down mode for standby functionality. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.

Oscillators Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes power-down capability to reduce consumption during standby
• Utilizes a leadless surface-mount package for space-constrained designs

Oscillators Applications

• General clock signal generation in electronic circuits
• Timing reference for digital systems requiring 17.7344 MHz
• Portable devices utilizing low-voltage 1.8V operation

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 4-SMD no-lead package footprint matches your PCB layout specifications to guarantee proper soldering and mechanical stability.

Oscillators Selection Notes

Select this component when a precise 17.7344 MHz timing source is required within a minimal footprint. Consider the LVCMOS output level if interfacing directly with standard logic families. Evaluate the power-down feature if energy efficiency during idle periods is a critical design constraint for the target application.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series typically offers various frequencies within a small 2.0x1.6mm form factor. The '-PD' suffix indicates the inclusion of a power-down control pin or function, distinguishing it from standard continuous-operation variants in the same package family.

Oscillators Replacement Considerations

Direct replacements must match the 17.7344 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify equivalent electrical characteristics such as phase noise and jitter specifications to ensure functional parity in timing-sensitive applications.