18QHTF21-83.76588-PD

Overview

The 18QHTF21-83.76588-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 83.76588 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and features a standby or power-down function for energy management. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0mm x 1.6mm. This component is designed for applications requiring precise timing signals within low-voltage digital systems.

Feature Summary

• Supports LVCMOS output logic for standard digital interfacing
• Includes standby and power-down functionality to reduce power consumption
• Utilizes a small form factor 4-SMD no-lead package

Applications

• General purpose clock generation in embedded systems
• Timing reference for microcontrollers and processors
• Data communication interface synchronization

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 package dimensions. Check for any specific handling instructions related to the no-lead package type during assembly.

Selection Notes

Select this component when a fixed frequency of 83.76588 MHz is required with low voltage operation. Consider the LVCMOS output compatibility with downstream logic levels. Evaluate the need for power-down capabilities if battery life or thermal management is critical. Compare package size constraints against available board space.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies in a standardized 2.0x1.6mm package. The series typically supports 1.8V operation and includes power management features. It serves as a direct replacement for other oscillators in the same family with different frequency specifications.

Replacement Considerations

Direct substitutes include other 18QHTF21 variants with compatible pinouts and electrical characteristics. Verify that alternative parts match the 83.76588 MHz frequency requirement exactly. Ensure the replacement maintains the same LVCMOS output and 1.8V supply voltage specifications.