18QHTF21-64.512-PD

Overview

The 18QHTF21-64.512-PD is a 64.512 MHz crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a supply voltage of 1.8V and utilizes LVCMOS output logic. The device features a Standby (Power Down) function for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm.

Feature Summary

• LVCMOS output logic interface
• Standby (Power Down) capability
• Compact 4-SMD No Lead package

Applications

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

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target application design before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the 4-SMD No Lead footprint matches the PCB layout specifications to guarantee proper soldering and mechanical stability during assembly.

Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside a precise 64.512 MHz frequency reference. The choice is driven by the need for a small form factor suitable for space-constrained designs. Consider the LVCMOS compatibility with downstream digital logic levels and the necessity of a standby mode for energy efficiency in portable or battery-operated devices.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz crystals and oscillators. The series offers various frequencies within a standardized 2.0x1.6 mm package. The manufacturer has decades of experience in frequency control products, providing reliable components for industrial and consumer electronics applications requiring stable clock signals.

Replacement Considerations

The 3QHTF21-64.512-OE is listed as an equivalent or alternate part number for this component. Verify pinout compatibility and electrical specifications before substitution.