18QHTF21-13.435156-PD

Overview

The 18QHTF21-13.435156-PD is a standard crystal oscillator 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 features a standby or power-down mode capability. 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
• Includes standby or power-down functionality
• Utilizes LVCMOS output logic interface

Applications

• General clock signal generation
• Digital circuit timing reference
• Embedded system clock sources

Procurement Notes

Verify the specific ordering suffix to ensure compatibility with required voltage levels and output types. Confirm that the 4-SMD no-lead package matches the target PCB footprint. Check datasheet specifications for operating temperature range and load capacitance requirements before integration into final designs.

Selection Notes

Select this component when a precise 13.435156 MHz clock source is required for low-power applications. Ensure the design supports 1.8V logic levels and accommodates the small 2.0x1.6 mm form factor. Consider the need for power-down control if energy efficiency during idle states is a priority for the system architecture.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronic Ind., Co., Ltd., which specializes in quartz crystal frequency control products. The manufacturer has a history dating back to 1973 and is recognized as a pioneer in the Taiwan quartz crystal industry. This series typically offers various frequencies within a compact surface-mount package.

Replacement Considerations

Direct substitutes include other 13.435156 MHz LVCMOS oscillators in 4-SMD packages with 1.8V supply. Verify pinout compatibility and electrical parameters such as phase noise and jitter against original specifications.