18QHTF21-20.900-OE

Oscillators Overview

The 18QHTF21-20.900-OE is a crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 20.9 MHz and utilizes LVCMOS output logic levels. The device supports a supply voltage of 1.8V and includes an enable/disable control function for power management. It is housed in a compact 4-SMD, no lead package with dimensions of 2.0x1.6mm, designed for surface-mount applications.

Oscillators Feature Summary

• Supports LVCMOS output interface
• Includes enable/disable control functionality
• Operates on 1.8V supply voltage

Oscillators Applications

• General purpose clock generation
• Embedded system timing references
• Consumer electronics signal processing

Oscillators Procurement Notes

Verify the specific part number suffix against official Mercury Electronics documentation to confirm electrical characteristics and pinout configuration. Ensure compatibility with the target circuit's voltage levels and load requirements before integration.

Oscillators Selection Notes

Select this component when a low-voltage, small-footprint oscillator with enable control is required. Confirm that the 20.9 MHz frequency meets the system timing specifications and that the LVCMOS output is compatible with the receiving logic inputs.

Oscillators Part Context

This model belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various standard frequencies and is characterized by its small 2.0x1.6mm package size and 1.8V operation, suitable for space-constrained portable devices.

Oscillators Replacement Considerations

Direct substitutes may include other 18QHTF21 variants with different frequencies or packages from Mercury Electronics. Cross-referencing with other manufacturers requires matching the 4-SMD footprint, 1.8V supply, and LVCMOS output type.