18QHTF21-8.6432-PD

Overview

The 18QHTF21-8.6432-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 8.6432 MHz and utilizes LVCMOS output logic. The device requires a 1.8V supply voltage and features a standby mode for power down functionality. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.

Feature Summary

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

Applications

• General clock signal generation
• Embedded system timing references
• Digital circuit synchronization

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target application design before procurement. Confirm that the 1.8V supply rail stability meets the oscillator's operational specifications to ensure reliable performance. Ensure the PCB layout accommodates the 4-SMD no-lead package dimensions accurately.

Selection Notes

Select this component when a precise 8.6432 MHz reference is required with minimal power consumption. The LVCMOS output is suitable for direct interfacing with standard digital logic families. Consider the standby feature if power efficiency during idle periods is a critical design constraint.

Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series offers various frequencies within a small form factor. The PD suffix typically indicates a specific packaging or tape-and-reel configuration, distinguishing it from other variants like OE.

Replacement Considerations

Direct substitutes include other 18QHTF21 series parts with identical pinout and electrical characteristics but different frequencies, such as 18QHTF21-8.000-PD or 18QHTF21-64.300-PD, provided the frequency difference is acceptable for the application.