18QHTF21-30.640-PD

Oscillators Overview

The 18QHTF21-30.640-PD is a 30.64 MHz crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a supply voltage of 1.8V and features an LVCMOS output signal. The component supports a Standby (Power Down) function for energy management. It is housed in a compact 2.0x1.6 mm surface-mount package with four no-lead terminals, designed for space-constrained electronic applications requiring precise timing signals.

Oscillators Feature Summary

• Generates a stable 30.64 MHz clock signal using standard XO technology
• Operates with low voltage power consumption at 1.8V
• Includes standby capability to reduce power usage when not in active use
• Utilizes LVCMOS interface for digital logic compatibility

Oscillators Applications

• Embedded systems requiring precise timing synchronization
• Communication modules utilizing standard frequency references
• Portable electronic devices needing low-power clock sources
• Digital signal processing circuits requiring stable input frequencies

Oscillators Procurement Notes

Verify the specific frequency suffix matches the required 30.64 MHz specification during ordering. Confirm that the 1.8V operating voltage aligns with the target circuit design. Ensure the 2.0x1.6 mm footprint is compatible with the PCB layout. Check for the presence of the power-down feature if energy efficiency is a critical requirement for the application.

Oscillators Selection Notes

Select this component when a small form factor is necessary alongside low-voltage operation. The LVCMOS output is suitable for direct interfacing with standard digital logic families. Consider the standby feature if the system requires periodic sleep modes. Verify that the 30.64 MHz frequency meets the exact timing requirements of the host device without additional dividers or multipliers.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series offers various frequency options within a consistent 2.0x1.6 mm package. The 'PD' suffix indicates the inclusion of a power-down control pin. This family is designed for applications prioritizing size reduction and power efficiency in modern consumer and industrial electronics.

Oscillators Replacement Considerations

Direct substitutes must match the 30.64 MHz frequency, 1.8V voltage, and 2.0x1.6 mm package dimensions. Components with different output types or voltage levels require circuit redesign. Verify that any replacement also supports the standby function if power management is essential. Cross-reference pinouts to ensure compatibility with existing PCB traces.