18QHTF21-24.551-PD

Oscillators Overview

The 18QHTF21-24.551-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 24.551 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 2.0 x 1.6 mm.

Oscillators Feature Summary

• Integrates LVCMOS output logic for standard digital interface compatibility
• Features a dedicated standby mode to reduce power consumption during idle periods
• Utilizes a surface-mount 4-pin no-lead package for automated assembly

Oscillators Applications

• Clock signal generation for embedded systems
• Timing reference for communication interfaces
• Power management circuits requiring low-power oscillation

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply voltage aligns with the system's power rails. Ensure the PCB footprint matches the 2.0x1.6mm SMD no-lead package specifications to prevent mounting issues.

Oscillators Selection Notes

Select this component when a precise 24.551 MHz timing source is required with minimal power usage. The LVCMOS output is suitable for general-purpose digital logic. Consider the small form factor for space-constrained designs. Evaluate if the 1.8V operating voltage meets the system's power budget compared to higher voltage alternatives.

Oscillators Part Context

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

Oscillators Replacement Considerations

Direct substitutes include other 18QHTF21 series parts with identical pinout and package dimensions but different frequencies, such as 18QHTF21-51.200-PD or 18QHTF21-96.768-PD, provided the frequency difference is acceptable for the application.