18QHTF21-1.647-PD

Overview

The 18QHTF21-1.647-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 1.647 MHz and utilizes LVCMOS output levels. The device supports a supply voltage of 1.8V and includes a standby or power-down function for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm.

Feature Summary

• Supports low-voltage operation at 1.8V
• Integrates standby mode for power reduction
• Provides LVCMOS signal compatibility

Applications

• Low-frequency clock generation in portable electronics
• Timing reference for microcontroller systems
• Battery-powered devices requiring power-down capabilities

Procurement Notes

Verify the specific suffix (PD) to confirm the package type and lead-free status. Ensure the operating voltage matches the 1.8V requirement of the target circuit. Confirm that the 4-SMD no-lead footprint aligns with the PCB layout specifications before finalizing the order.

Selection Notes

Select this component when a precise 1.647 MHz frequency is required in space-constrained designs. The choice is driven by the need for low-power standby functionality and LVCMOS interface compatibility. Consider the small 2.0x1.6 mm package size for high-density board applications.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in frequency control products. The series offers various frequencies and packages, catering to diverse timing needs in consumer and industrial electronics. Mercury Electronics has been a pioneer in the crystal industry since 1973.

FAQ

What is the output logic level?

The output logic level is LVCMOS.

Does the device support power saving?

Yes, it features a standby or power-down function.