18QHTF21-13.435156-OE

Overview

The 18QHTF21-13.435156-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 13.435156 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and includes an enable/disable control function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Integrates enable/disable functionality for power management
• Utilizes a leadless surface-mount package for space-constrained designs

Applications

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

Procurement Notes

Verify the specific operating temperature range and load capacitance requirements against the target application's design specifications before procurement. Ensure that the 1.8V supply voltage aligns with the system's power rails. Confirm that the 4-SMD no-lead package footprint matches the PCB layout to prevent assembly issues. Cross-reference the manufacturer's latest datasheet for any revisions to mechanical or electrical parameters.

Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside a specific frequency of 13.435156 MHz. The LVCMOS output is suitable for standard digital logic families. Consider the small 2.0x1.6mm footprint if board space is limited. The enable pin allows for dynamic power control, which is beneficial for battery-operated devices. Ensure the application does not require spread spectrum or alternative voltage levels.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, characterized by its 1.8V supply and small form factor. The series typically offers standard XO performance with enable capabilities. Mercury Electronics is a established manufacturer of frequency control products, providing quartz-based timing solutions. This specific model represents a fixed-frequency variant within their portfolio of surface-mount oscillators.

Replacement Considerations

Direct substitutes must match the 13.435156 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify that any replacement part supports the same enable/disable functionality. Check for equivalent operating temperature ranges and electrical characteristics to ensure circuit compatibility without redesign.