18QHTF21-1.152-OE

Overview

The 18QHTF21-1.152-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 1.152 MHz and utilizes LVCMOS output logic levels. The device is designed for low-voltage applications, specifically requiring a 1.8V supply voltage. A key functional characteristic is the inclusion of an Enable/Disable control pin, allowing for power management during inactive periods. The component is housed in a compact 4-SMD, No Lead package with physical dimensions of 2.0x1.6 mm, suitable for surface-mount assembly on printed circuit boards.

Feature Summary

• LVCMOS output interface for digital logic compatibility
• Integrated enable/disable functionality for power optimization
• Compact 4-SMD no-lead surface mount package

Applications

• Low-frequency clock signal generation in embedded systems
• Timing reference for microcontrollers requiring 1.152 MHz input
• Power-sensitive portable electronic devices

Procurement Notes

Verify that the specific ordering suffix matches the required frequency tolerance and load capacitance specifications for your design. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the PCB footprint corresponds to the 2.0x1.6 mm SMD package dimensions. Check for any specific reflow soldering profile requirements provided in the manufacturer datasheet to ensure reliable attachment.

Selection Notes

Select this component when a precise 1.152 MHz timing source is required in space-constrained designs. The LVCMOS output is appropriate for standard digital logic families operating at 1.8V. Consider the enable pin if power conservation is critical. Compare against other Mercury oscillators in the 18QHTF series for alternative frequencies or package sizes if the current specification does not fully meet application needs.

Part Context

This part belongs to the 18QHTF series of standard crystal oscillators from Mercury Electronic Ind. Co., Ltd. The series offers various frequencies within a small form factor. Mercury Electronics is a established supplier of frequency control products, including quartz crystals and oscillators, with manufacturing history dating back to 1973 in Taiwan.

Replacement Considerations

Direct substitutes may include other 1.152 MHz XO components in 4-SMD packages with LVCMOS outputs and 1.8V operation. Verify pinout compatibility and electrical parameters before substitution. Cross-reference with similar models from Mercury such as those in the 3QHTF series if package size differences are acceptable.