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Product Detailed Parameters
- Description：65.5 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：65.5 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 18QHTF21-65.500-OE is a standard quartz crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a nominal frequency of 65.5 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes an enable/disable control pin for power management. It is housed in a compact 4-SMD, no-lead package designed for surface-mount assembly.
Feature Summary
- LVCMOS output compatibility
- Integrated enable/disable functionality
- Compact 4-pin SMD form factor
Applications
- General purpose clock generation
- Digital signal processing systems
- Embedded controller timing
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD footprint matches your PCB layout constraints. Request the official datasheet from Mercury Electronics for precise electrical characteristics and reliability data.
Selection Notes
Select this component when a low-voltage 1.8V operation is required alongside standard LVCMOS signaling. The integrated enable feature supports power-saving applications where clock signals must be controlled dynamically. Consider the small 4-pin package size for space-constrained designs requiring reliable frequency stability.
Part Context
This part belongs to the 18QHTF21 series of standard oscillators from Mercury Electronic Ind. Co., Ltd. The series offers various frequencies within the LVCMOS family, sharing common package dimensions and interface standards. The suffix -OE typically denotes specific packaging or tape-and-reel configurations provided by the manufacturer.
Replacement Considerations
Direct substitutes include other 18QHTF21 series variants with identical 65.5 MHz frequency and 1.8V LVCMOS specifications. Cross-reference compatible models from Mercury United Electronics or other suppliers offering 4-pin SMD LVCMOS oscillators with matching enable features.
