18QHTF21-7.8125-PD

Overview

The 18QHTF21-7.8125-PD is a crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd, operating at a frequency of 7.8125 MHz. It utilizes LVCMOS output logic and functions with a 1.8V supply voltage. The device features a power-down capability for standby mode control. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Feature Summary

• Supports LVCMOS output logic for standard digital interfacing
• Includes power-down functionality to reduce consumption during standby
• Operates on a low 1.8V supply voltage

Applications

• Battery-powered portable devices
• General-purpose clock signal generation
• Digital circuit timing references

Procurement Notes

Verify the specific part number suffix against official manufacturer documentation to confirm exact electrical characteristics and package type. Ensure compatibility with system voltage requirements and interface standards before integration. Cross-reference datasheets for precise frequency tolerance and temperature range specifications.

Selection Notes

Select this component when a low-voltage, small-footprint oscillator is required for portable applications. Confirm that the LVCMOS output level matches the receiving logic inputs. Evaluate the need for power-down control to manage battery life in standby modes.

Part Context

This model belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series offers various frequencies within a standardized 2.0x1.6 mm package. It is designed for applications requiring stable clock signals with minimal power consumption.

Replacement Considerations

Check for direct substitutes within the same series offering identical pinout and voltage levels. Verify that alternative components meet the same frequency stability and package dimension requirements.