18QHTF21-27.710-PD

Oscillators Overview

The 18QHTF21-27.710-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 27.71 MHz with an LVCMOS output logic level. The device supports a supply voltage of 1.8V and includes a standby or power-down function for energy management. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.00mm x 1.60mm.

Oscillators Feature Summary

• Integrates a standard crystal oscillator with LVCMOS output interface
• Supports low voltage operation at 1.8V
• Includes standby mode capability for power reduction

Oscillators Applications

• General clock signal generation in electronic circuits
• Embedded systems requiring precise timing references
• Portable devices utilizing low-voltage power supplies

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure the 1.8V supply rail stability meets the oscillator's operational specifications. Confirm that the PCB footprint matches the 4-SMD no-lead package dimensions to avoid assembly issues during manufacturing.

Oscillators Selection Notes

Select this component when a fixed 27.71 MHz clock source is required with minimal form factor constraints. The LVCMOS output is suitable for direct interfacing with digital logic families operating at 1.8V. Consider the power-down feature if system-level power efficiency is a priority compared to continuous-operation oscillators.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which focuses on small-footprint surface-mount oscillators. The series typically offers various frequencies within a standardized 2.0x1.6mm package. The 'PD' suffix indicates the inclusion of a power-down control pin, distinguishing it from basic continuous-output variants.

Oscillators Replacement Considerations

Direct replacements must match the 27.71 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify pinout compatibility, specifically the power-down control configuration, to ensure seamless integration without PCB redesign.