18QHTF21-8.388-OE

Overview

The 18QHTF21-8.388-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 8.388 MHz and utilizes LVCMOS output logic for digital signal interfacing. The device supports a supply voltage of 1.8V and includes an enable/disable control function to manage power consumption. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly on printed circuit boards.

Feature Summary

• LVCMOS output logic for standard digital interface compatibility
• Integrated enable/disable pin for power management control
• Compact 4-SMD no-lead surface mount package design

Applications

• General purpose clock signal generation in electronic circuits
• Timing reference for low-voltage digital systems
• Embedded system clock sources requiring enable functionality

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target application circuit design. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the enable/disable pin logic levels are compatible with the controlling microcontroller or GPIO. Check the operating temperature range specifications to guarantee reliability under expected environmental conditions.

Selection Notes

Select this component when a precise 8.388 MHz timing source is required for LVCMOS-compatible digital logic. The choice is driven by the need for a low-profile 4-pin SMD footprint and the necessity for active power control via the enable pin. Consider the 1.8V operating voltage constraint when designing the power distribution network for the oscillator circuit.

Part Context

This part belongs to the Mercury Electronics XO series, which provides standard frequency oscillators for various timing applications. The manufacturer specializes in quartz-based frequency control products, including crystals and oscillators. This specific model represents a standard output configuration within their portfolio of surface-mount timing devices.

Replacement Considerations

Direct substitutes must match the 8.388 MHz frequency, LVCMOS output type, 1.8V supply voltage, and 4-SMD package dimensions. Verify that any alternative component supports the same enable/disable control functionality and meets identical electrical performance standards.