18QHTF21-1.024-PD

Overview

The 18QHTF21-1.024-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 1.024 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and features a power-down function for standby mode control. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Feature Summary

• Supports low-voltage operation at 1.8V
• Includes power-down capability for energy management
• Utilizes LVCMOS output interface

Applications

• Low-frequency timing circuits
• Embedded system clock generation
• Portable electronic devices requiring minimal power consumption

Procurement Notes

Verify the specific suffix 'PD' confirms the power-down feature when sourcing. Ensure the 1.8V supply requirement aligns with the target circuit design. Confirm the 4-SMD no-lead package footprint matches the PCB layout specifications to avoid assembly issues during procurement.

Selection Notes

Select this component for applications necessitating a precise 1.024 MHz reference signal with low power constraints. The LVCMOS output ensures compatibility with standard digital logic families. Consider the small form factor suitable for space-constrained designs requiring reliable frequency control.

Part Context

This part belongs to the Mercury Electronics 18QHTF21 series of surface-mount crystal oscillators. The series offers various frequencies and supply voltages, catering to diverse timing needs. The 'PD' suffix specifically denotes the inclusion of a power-down pin or function within the package.

Replacement Considerations

Direct substitutes include other 1.024 MHz LVCMOS oscillators in 2.0x1.6mm packages from compatible manufacturers. Verify electrical parameters such as supply voltage and output swing before substitution.