18QHTF21-17.7345-PD

Oscillators Overview

The 18QHTF21-17.7345-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 17.7345 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and features a standby function for power down control. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. The component supports an operating temperature range of -40°C to 85°C.

Oscillators Feature Summary

• Supports low voltage CMOS (LVCMOS) output signaling
• Includes standby mode for power management
• Compact surface mount package design

Oscillators Applications

• General purpose clock generation
• Digital signal processing systems
• Communication interface circuits

Oscillators Procurement Notes

Verify the specific frequency suffix matches the required system clock. Confirm the 1.8V supply requirement aligns with the target circuit design. Ensure the 4-SMD no-lead package footprint fits the PCB layout constraints. Check that the industrial temperature range meets environmental specifications.

Oscillators Selection Notes

Select this model when a precise 17.7345 MHz reference is needed with low power consumption. The LVCMOS output is suitable for direct interfacing with digital logic. The small form factor aids in dense board layouts. Verify compatibility with existing voltage rails before integration.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies within a standardized 2.0x1.6mm package. The series provides consistent electrical characteristics across different frequency options, simplifying inventory management for multi-frequency designs.

Oscillators Replacement Considerations

Direct substitutes include other 18QHTF21 variants with identical pinout and electrical specs but different frequencies. Cross-reference with other manufacturers offering 2.0x1.6mm LVCMOS oscillators if availability is critical.