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Product Detailed Parameters
- Description：66.0 MHz XO 1.8V 2.0X1.6 MM OE
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：66 MHz
- Function：Enable/Disable
- Output：LVCMOS
- Voltage - Supply：1.8V
- Frequency Stability：±50ppm
- Absolute Pull Range (APR)：-
- Operating Temperature：-40°C ~ 85°C
- Spread Spectrum Bandwidth：-
- Current - Supply (Max)：26mA
- Ratings：-
- Mounting Type：Surface Mount
- Package / Case：4-SMD, No Lead
- Size / Dimension：0.079" L x 0.063" W (2.00mm x 1.60mm)
- Height - Seated (Max)：0.031" (0.80mm)
- Supplier Device Package：-
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Overview
The 18QHTF21-66.000-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd, operating at a fixed frequency of 66 MHz. It utilizes LVCMOS output logic and functions with a supply voltage of 1.8V. The device features an enable/disable control pin for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.
Feature Summary
- Integrates LVCMOS output interface for digital signal compatibility
- Supports active low or high enable/disable functionality for power optimization
- Utilizes surface-mount technology for automated assembly integration
Applications
- General clock generation for embedded systems
- Timing reference for microcontrollers and processors
- Data communication interface synchronization
Procurement Notes
Verify the specific suffix 'OE' against manufacturer documentation to confirm enable/disable pin configuration and polarity. Ensure the 1.8V supply requirement aligns with system design constraints. Cross-reference the 4-SMD no-lead footprint dimensions with PCB layout specifications to guarantee mechanical fit and solder joint integrity during assembly processes.
Selection Notes
Select this component when a precise 66 MHz timing source is required within space-constrained designs. The 1.8V operation makes it suitable for low-power portable electronics. Consider the enable feature if dynamic power saving is necessary. Compare thermal performance and stability requirements against application needs before finalizing the choice.
Part Context
This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz frequency control products. The series offers various frequencies and voltages in small form factors. Mercury Electronics has extensive experience in crystal manufacturing, providing reliable timing solutions for industrial and consumer applications globally.
Replacement Considerations
Direct substitutes include other 66 MHz LVCMOS oscillators in 2.0x1.6mm packages from compatible manufacturers. Verify voltage levels and enable logic compatibility. Check datasheets for equivalent jitter and stability specifications to ensure seamless integration without circuit redesign.
