18QHTF21-6.562-PD

Overview

The 18QHTF21-6.562-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 6.562 MHz and utilizes LVCMOS output logic levels. The device is designed for low-power applications, featuring a supply voltage of 1.8V and supporting a standby or power-down mode to minimize energy consumption during idle periods. It is housed in a compact 4-SMD, no-lead package with dimensions corresponding to the SMD2016 form factor, making it suitable for space-constrained circuit designs.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby functionality for power management
• Utilizes a leadless surface-mount package design

Applications

• Battery-powered portable electronic devices
• Low-power consumer electronics systems
• General-purpose timing circuits requiring compact footprints

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your system design before procurement. Confirm that the 1.8V supply voltage aligns with your target platform's power rails. Ensure the SMD2016 footprint matches your PCB layout constraints. Cross-reference the datasheet for operating temperature ranges to guarantee reliability under expected environmental conditions.

Selection Notes

Select this component when a precise 6.562 MHz clock signal is required within a minimal physical envelope. The LVCMOS output ensures direct interfacing with standard digital logic without additional level shifting. Consider the standby feature if power efficiency is critical for the application. Evaluate the 1.8V operation against available power supplies in the target system architecture.

Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which focuses on small-form-factor timing solutions. The series typically offers various frequency options within the same package type. Mercury Electronics specializes in quartz-based frequency control products, including crystals and oscillators, serving global electronics markets with standardized components.

Replacement Considerations

Direct substitutes include other 6.562 MHz LVCMOS oscillators in the 2016 package with compatible 1.8V operation. Verify pinout compatibility and electrical specifications such as phase noise and jitter before substitution.