18QHTF21-16.128-PD

Oscillators Overview

The 18QHTF21-16.128-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 16.128 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 2.0x1.6mm.

Oscillators Feature Summary

• Integrates LVCMOS output logic for digital interface compatibility
• Features a dedicated standby or power-down mode to reduce power consumption
• Utilizes a small form factor 4-SMD no lead package design

Oscillators Applications

• General purpose clock signal generation in embedded systems
• Timing reference for low-voltage digital circuits
• Portable electronic devices requiring power-efficient oscillators

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD no lead package footprint matches your PCB layout constraints. Check for RoHS compliance status if required by your manufacturing standards.

Oscillators Selection Notes

Select this component when a precise 16.128 MHz timing source is required for LVCMOS-compatible logic families. Consider the 1.8V operating voltage as a primary constraint for power supply design. The compact 2.0x1.6mm package makes it suitable for space-constrained applications. Evaluate the power-down feature necessity for battery-operated or energy-sensitive projects.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various frequencies with standardized LVCMOS outputs and low-voltage operation. The -PD suffix indicates the inclusion of a power-down control feature, distinguishing it from standard continuous-operation variants within the same package family.

Oscillators Replacement Considerations

Direct replacements must match the 16.128 MHz frequency, LVCMOS output type, 1.8V supply voltage, and 4-SMD no lead package dimensions. Verify pinout compatibility and electrical characteristics such as jitter and phase noise. Cross-reference with other manufacturers offering similar low-profile oscillators with identical functional specifications.