18QHTF21-55.4667-PD

Overview

The 18QHTF21-55.4667-PD is a crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 55.4667 MHz with an LVCMOS output logic level. The device supports a supply voltage of 1.8V and includes a standby or power-down function. It is housed in a 4-SMD, No Lead package with dimensions of 2.0x1.6 mm.

Feature Summary

• Supports standard LVCMOS output logic for digital interfacing
• Includes standby and power-down functionality for energy management
• Utilizes a compact 4-SMD no-lead surface mount package

Applications

• General purpose clock signal generation
• Digital circuit timing reference
• Embedded system clock sources

Procurement Notes

Verify the specific frequency suffix matches the required 55.4667 MHz specification. Confirm the 1.8V supply voltage requirement aligns with the target circuit design. Ensure the 4-SMD no-lead package footprint corresponds to the PCB layout constraints. Check for any specific operating temperature range requirements not detailed in general descriptions.

Selection Notes

Select this component when a precise 55.4667 MHz clock source is needed with low voltage operation. The LVCMOS interface ensures compatibility with standard digital logic families. The small form factor suits space-constrained designs. Verify that the power-down feature meets system power management strategies.

Part Context

This part belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronics. The series offers various frequencies within a standardized 2.0x1.6 mm package. These components are designed for applications requiring stable clock signals in consumer electronics and industrial equipment.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Direct replacement requires matching the exact frequency, voltage, and package dimensions.