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Product Detailed Parameters
- Description：64.95 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：64.95 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 18QHTF21-64.950-OE is a quartz crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 64.95 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and 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, suitable for surface-mount assembly.
Feature Summary
- LVCMOS output compatibility for standard digital interfaces
- Integrated enable/disable functionality for power optimization
- Compact 4-pin SMD no-lead package design
Applications
- High-performance digital signal processing circuits
- Communication equipment clock generation
- Consumer electronics timing references
Procurement Notes
Verify the specific frequency suffix (64.950) and voltage rating (1.8V) against system requirements. Confirm the package type matches the PCB footprint. Ensure the OE (Enable/Disable) pin configuration aligns with the control logic design. Cross-reference the manufacturer part number to avoid confusion with similar variants.
Selection Notes
Select this component when a low-voltage 1.8V operation is required alongside precise 64.95 MHz timing. The LVCMOS interface ensures compatibility with standard logic families. Consider the small form factor for space-constrained designs. Verify thermal and environmental specifications if operating outside standard commercial ranges.
Part Context
This oscillator belongs to the Mercury QHTF series, designed for general-purpose timing applications. The series offers various frequencies and voltage options within a standardized small outline package. It serves as a reliable clock source for microcontrollers and memory devices requiring stable frequency generation.
Replacement Considerations
Direct substitutes include other 64.95 MHz LVCMOS oscillators in 2016 packages from compatible manufacturers. Ensure voltage levels and pin configurations match exactly. Verify frequency tolerance and stability specifications before substitution.
