18QHTF21-12.80028-PD

Overview

The 18QHTF21-12.80028-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 12.80028 MHz and utilizes LVCMOS output logic. The device is designed for low-power applications, featuring a supply voltage of 1.8V and an integrated standby or power-down function to minimize energy consumption during idle periods. It is housed in a compact 4-SMD, no-lead package, suitable for surface-mount assembly on printed circuit boards.

Feature Summary

• LVCMOS output logic interface
• Integrated standby and power-down functionality
• Compact 4-SMD no-lead surface mount package

Applications

• Low-power portable electronic devices
• Communication equipment requiring precise timing
• Embedded systems with strict power constraints

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your system design before procurement. Confirm that the 1.8V supply voltage aligns with your target platform's power rails. Ensure the PCB footprint matches the 4-SMD no-lead package dimensions provided in the official datasheet to guarantee proper soldering and mechanical stability.

Selection Notes

Select this component when a stable 12.80028 MHz clock signal is required with minimal power consumption. The LVCMOS output ensures compatibility with standard digital logic families. Consider the standby feature if power management is critical. Verify environmental operating temperature ranges meet application needs.

Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series typically offers various frequencies and supply voltages. The 'PD' suffix indicates the inclusion of a power-down control pin or function, distinguishing it from continuously running variants within the same package family.

Replacement Considerations

Direct substitutes include other 12.80028 MHz LVCMOS oscillators in a 4-SMD no-lead package with 1.8V operation and standby capabilities. Ensure pinout compatibility and electrical specifications match exactly. Cross-reference with Mercury Electronics' own alternative part numbers if available.