18QHTF21-6.760-PD

Overview

The 18QHTF21-6.760-PD is a crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 6.76 MHz with an LVCMOS output logic level. The device requires a 1.8V supply voltage and features a power-down (PD) function for standby mode control. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. The component is designed for timing applications requiring low power consumption and small form factors.

Feature Summary

• Integrated power-down functionality for energy-efficient standby operation
• Compact surface-mount package suitable for space-constrained designs
• LVCMOS output interface compatible with standard digital logic

Applications

• Battery-powered portable electronic devices
• Consumer electronics requiring low-power clock sources
• Embedded systems with strict size limitations

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure the 1.8V supply voltage aligns with your system's power rails. Confirm that the power-down pin configuration matches your control logic. Check for any specific operating temperature range constraints relevant to your application environment.

Selection Notes

Select this component when a low-voltage, small-footprint oscillator with power management capabilities is required. Consider the 6.76 MHz frequency suitability for your specific clocking needs. Evaluate the LVCMOS output compatibility with downstream logic gates. Assess the power-down feature benefits for battery life extension in portable applications.

Part Context

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

Replacement Considerations

Direct substitutes must match the 6.76 MHz frequency, 1.8V supply, LVCMOS output, and 2.0x1.6mm package dimensions. Verify equivalent power-down functionality and electrical characteristics. Cross-reference with other manufacturers offering similar low-profile, low-voltage oscillators if Mercury stock is unavailable.