18QHTF21-16.400-PD

Oscillators Overview

The 18QHTF21-16.400-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 16.4 MHz with LVCMOS output logic. The device requires a 1.8V supply voltage and features a power-down function for standby mode control. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0mm x 1.6mm.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Includes power-down capability for energy efficiency
• Utilizes LVCMOS output interface

Oscillators Applications

• General clock signal generation
• Embedded system timing references
• Portable electronic devices requiring low power

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply rail is stable and within the specified operating range to ensure reliable oscillator performance and longevity.

Oscillators Selection Notes

Select this component when a precise 16.4 MHz reference is required in space-constrained designs. Ensure the host circuit supports LVCMOS logic levels and can provide the necessary current draw. Consider the power-down pin functionality if dynamic power management is part of the system architecture.

Oscillators Part Context

This model belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series offers various frequencies in a small 2.0x1.6mm footprint, targeting applications where size and power consumption are critical constraints compared to larger through-hole or standard SMD packages.

Oscillators Replacement Considerations

Direct substitutes must match the 16.4 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package dimensions. Verify pin compatibility and thermal characteristics before swapping.