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Product Detailed Parameters
- Description：6.562 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：6.562 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)：21mA
- 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 18QHTF21-6.562-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 6.562 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes an enable/disable control function for power management. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.
Feature Summary
- LVCMOS output interface for digital logic compatibility
- Integrated enable/disable pin for power control
- Compact 4-SMD no-lead surface mount package
Applications
- General purpose timing circuits
- Embedded systems clock sources
- Consumer electronics timing references
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. Cross-reference the OE suffix with manufacturer documentation to confirm availability and exact specifications.
Selection Notes
Select this component when a low-voltage 1.8V operation is required alongside a standard LVCMOS output. The enable/disable feature makes it suitable for battery-powered devices needing power efficiency. Consider the small 4-pin form factor for space-constrained designs. Verify that the 6.562 MHz frequency meets the specific clocking needs of the target application.
Part Context
This part belongs to the Mercury Electronic Ind. Co., Ltd. series of quartz-based oscillators. The company specializes in frequency control products including crystals, filters, and oscillators. The 18QHTF21 series represents their standard XO offerings with integrated enable functionality.
Replacement Considerations
Direct substitutes include other 6.562 MHz LVCMOS oscillators from Mercury Electronics such as the 18QHTF21-6.300-OE or 18QHTF21-6.312-OE if frequency adjustments are acceptable. Ensure any replacement maintains the 1.8V supply and 4-SMD package compatibility.
