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Product Detailed Parameters
- Description：66.213 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：66.213 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 18QHTF21-66.213-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 66.213 MHz and utilizes LVCMOS output logic. The device is designed for low-voltage applications, requiring a supply voltage of 1.8V. It features an Enable/Disable control function to manage power consumption. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.
Feature Summary
- Supports LVCMOS output logic for digital interface compatibility
- Includes hardware enable/disable functionality for power management
- Utilizes a leadless SMD package for surface-mount assembly
Applications
- Digital signal processing circuits
- Communication equipment clocking
- Embedded system timing references
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Ensure the 1.8V supply rail stability meets the oscillator's operational specifications. Confirm that the PCB footprint matches the 2.0x1.6mm 4-SMD no-lead package dimensions to prevent assembly errors during manufacturing.
Selection Notes
Select this component when a precise 66.213 MHz reference is required in space-constrained designs. The 1.8V operating voltage makes it suitable for modern low-power digital systems. Consider the enable pin requirement if dynamic power saving is necessary. Verify that the LVCMOS output swing aligns with the input thresholds of the receiving logic gates.
Part Context
This part belongs to the 18QHTF21 series from Mercury Electronic Ind. Co., Ltd, which specializes in quartz frequency control products. The manufacturer has a history of producing crystal oscillators since 1973. This series typically offers standard XO configurations with various frequency options and package sizes, catering to diverse electronic timing needs.
Replacement Considerations
Direct substitutes must match the 66.213 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Check datasheets for equivalent parts from other manufacturers offering identical electrical characteristics and mechanical dimensions to ensure drop-in compatibility.
