18QHTF21-4.754-PD

Oscillators Overview

The 18QHTF21-4.754-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a fixed frequency of 4.754 MHz and utilizes LVCMOS output logic. 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 2.0mm x 1.6mm.

Oscillators Feature Summary

• Integrates LVCMOS output logic for digital interface compatibility
• Features a low-profile 4-SMD no-lead surface mount package
• Includes standby mode capability to reduce power consumption

Oscillators Applications

• General-purpose clock signal generation in embedded systems
• Timing reference sources for microcontrollers and processors
• Digital communication interfaces requiring precise frequency stability

Oscillators Procurement Notes

Verify the specific frequency suffix matches the required 4.754 MHz operation. Confirm that the 1.8V supply voltage aligns with the target circuit design. Ensure the 4-SMD no-lead package footprint corresponds to the PCB layout specifications. Check for RoHS compliance status if environmental regulations apply to the assembly process.

Oscillators Selection Notes

Select this component when a standard XO with LVCMOS outputs is required for 1.8V logic systems. Consider the 2.0x1.6mm package size for space-constrained designs. Evaluate the need for standby functionality to manage power budgets in portable applications. Compare against other frequencies in the 18QHTF21 series if alternative timing speeds are needed.

Oscillators Part Context

This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronic Ind. Co., Ltd. The series offers various frequencies with consistent LVCMOS output characteristics. The manufacturer specializes in quartz crystals and timing solutions, providing active components for industrial and consumer electronics markets.

Oscillators Replacement Considerations

Direct substitutes include other 18QHTF21 variants with identical pinout and electrical parameters but different frequencies, such as 18QHTF21-4.068-PD or 18QHTF21-18.1059-PD, provided the system clock requirements allow for frequency adjustment.