18QHTF21-70.5367-PD

Overview

The 18QHTF21-70.5367-PD is a crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 70.5367 MHz with LVCMOS output logic and a supply voltage of 1.8V. The device features a Standby (Power Down) function and utilizes a 4-SMD, No Lead package with dimensions of 2.0x1.6 mm.

Feature Summary

• Supports Low Voltage Complementary Metal-Oxide-Semiconductor (LVCMOS) output logic for digital interfacing.
• Includes a Standby or Power Down mode to reduce power consumption when not in active use.
• Designed for surface-mount assembly using a compact 4-SMD No Lead package format.

Applications

• General clock signal generation for electronic circuits
• Digital system timing references
• Embedded device synchronization

Procurement Notes

Verify the specific frequency suffix matches the required 70.5367 MHz specification. Confirm that the 1.8V supply voltage aligns with the target circuit design. Ensure the 4-SMD No Lead package footprint is compatible with the PCB layout. Check for RoHS compliance if environmental regulations apply to the final product assembly.

Selection Notes

Select this component when a precise 70.5367 MHz clock source is required for low-voltage digital systems. The choice depends on the necessity for an LVCMOS interface and the availability of a 1.8V power rail. Consider the physical constraints of the 2.0x1.6 mm package size during board space planning. Verify thermal requirements against the operating temperature range specified in the official datasheet.

Part Context

This part belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronics Ind. Co. Ltd. The series typically offers various frequencies within a standard package. The 'PD' suffix indicates the inclusion of a power-down feature. This model specifically targets applications requiring stable timing at 70.5367 MHz.

Replacement Considerations

Direct substitutes may include other 18QHTF21 variants with different frequencies but identical electrical characteristics. Cross-reference with other manufacturers offering 4-SMD 1.8V LVCMOS oscillators at 70.5367 MHz. Ensure pinout compatibility and package dimensions match before substitution.