18QHTF21-64.800-PD

Overview

The 18QHTF21-64.800-PD is a 64.8 MHz crystal oscillator (XO) manufactured by Mercury Electronic Ind., Co., Ltd. It operates at a supply voltage of 1.8V and features an LVCMOS output logic level. The component is housed in a compact 2.0x1.6 mm surface-mount package with a strip configuration. It includes power-down functionality for standby mode control, designed for timing applications requiring precise frequency stability within standard operating temperature ranges.

Feature Summary

• Provides stable 64.8 MHz clock signal generation via quartz resonator technology
• Supports low-voltage operation at 1.8V for energy-efficient circuit designs
• Integrates power-down capability to enable standby mode management

Applications

• Embedded system clock sources
• Digital signal processing timing references
• Communication interface synchronization

Procurement Notes

Verify the specific datasheet from Mercury Electronics for exact electrical parameters including frequency tolerance, load capacitance, and drive level requirements. Confirm that the 1.8V supply voltage aligns with your target circuit design before procurement. Ensure compatibility with the 2.0x1.6 mm footprint on your PCB layout to guarantee proper assembly and performance.

Selection Notes

Select this model when a 64.8 MHz frequency is required with minimal form factor constraints. The 1.8V operating voltage suits modern low-power digital logic families. Consider the LVCMOS output compatibility with your receiving inputs. The power-down feature offers flexibility for systems requiring active and idle states without complete disconnection.

Part Context

This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series typically covers various frequencies with standardized 2.0x1.6 mm packages. The '-PD' suffix indicates the inclusion of power-down functionality, distinguishing it from standard continuous-operation variants within the same physical footprint family.

Replacement Considerations

Direct substitutes must match the 64.8 MHz frequency, 1.8V supply, LVCMOS output, and 2.0x1.6 mm package dimensions. Verify pinout compatibility and electrical specifications against original datasheets. Cross-reference with other manufacturers offering equivalent SMD XO components if Mercury Electronics availability is limited.