18QHTF21-15.840-PD

Oscillators Overview

The 18QHTF21-15.840-PD is a crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 15.84 MHz and utilizes LVCMOS output logic 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. This component is designed for applications requiring precise timing signals within low-voltage digital systems.

Oscillators Feature Summary

• Supports LVCMOS output interface for standard digital logic compatibility
• Includes standby mode capability to reduce power consumption during idle periods
• Utilizes a leadless surface-mount package for space-constrained designs

Oscillators Applications

• General-purpose clock generation in embedded systems
• Timing reference for microcontrollers and processors
• Digital signal processing circuits requiring stable frequency sources

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the PCB footprint matches the 2.0x1.6 mm SMD package dimensions. Cross-reference the datasheet for operating temperature ranges to guarantee reliability under your environmental conditions.

Oscillators Selection Notes

Select this component when a low-profile, low-voltage oscillator is required for timing applications. Consider the LVCMOS output swing if interfacing with 3.3V logic without level shifting. Evaluate the need for standby functionality to optimize battery life in portable devices. Compare size constraints against other packages like 3225 or 5032 if space permits alternative solutions.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various frequencies and voltage options, all sharing the same compact 2.0x1.6 mm form factor. The 'PD' suffix typically indicates the inclusion of a power-down feature, distinguishing it from standard continuous-operation variants within the same family.

Oscillators Replacement Considerations

Direct replacements must match the 15.84 MHz frequency, 1.8V supply, LVCMOS output, and 2.0x1.6mm package. Verify pinout compatibility and electrical characteristics such as rise/fall times and duty cycle stability. Consult manufacturer cross-reference lists for verified equivalents.