18QHTF21-21.600-PD

Oscillators Overview

The 18QHTF21-21.600-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 21.6 MHz and utilizes LVCMOS output logic. 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 2.0x1.6 mm.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Integrates standby mode for power reduction
• Utilizes LVCMOS output interface

Oscillators Applications

• General-purpose clock signal generation
• Embedded system timing references
• Portable electronic devices requiring low power consumption

Oscillators Procurement Notes

Verify the specific operating temperature range and load capacitance requirements against your circuit design before procurement. Ensure that the 1.8V supply rail stability meets the oscillator's specifications to maintain frequency accuracy. Confirm that the PCB footprint matches the 2.0x1.6 mm SMD package dimensions provided in the official datasheet.

Oscillators Selection Notes

Select this component when a precise 21.6 MHz reference is required with minimal power consumption. The LVCMOS output is suitable for direct interfacing with standard digital logic families. Consider the small form factor for space-constrained designs where thermal performance must be balanced with electrical characteristics.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series offers various frequencies and voltage options within a standardized 2.0x1.6 mm package. The 'PD' suffix indicates the inclusion of a power-down control feature, distinguishing it from continuous-operation variants.

Oscillators Replacement Considerations

Direct replacements include other 21.6 MHz LVCMOS oscillators in 4-SMD packages with compatible 1.8V supply voltages. Verify pinout compatibility and mechanical height constraints when substituting with components from different manufacturers.