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Product Detailed Parameters
- Description：6.75 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：6.75 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 18QHTF21-6.750-OE is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 6.75 MHz and utilizes an LVCMOS output signal format. The device supports a supply voltage of 1.8V and includes enable/disable functionality 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 control pin for power optimization
- RoHS compliant construction with MSL 1 moisture sensitivity rating
Applications
- General-purpose digital circuit timing
- Embedded system clock generation
- Consumer electronics timing references
Procurement Notes
Verify the specific frequency suffix matches the required 6.75 MHz specification. Confirm that the 1.8V operating voltage aligns with the target system's power rails. Ensure the 4-SMD no-lead package footprint is compatible with the PCB layout. Check RoHS compliance requirements if applicable to the final assembly standards.
Selection Notes
Select this component when a low-voltage 1.8V oscillator is required for space-constrained designs. The LVCMOS output is suitable for direct interfacing with standard digital logic families. Consider the enable feature if dynamic power saving is necessary during idle periods. Verify thermal performance within the intended operating environment.
Part Context
This part belongs to the 18QHTF21 series from Mercury Electronic, a manufacturer specializing in quartz crystals and oscillators. The series offers various frequencies and voltage options in a small form factor. Mercury has been a pioneer in Taiwan's crystal industry since 1973, providing frequency control solutions.
Replacement Considerations
Direct substitutes include other 6.75 MHz LVCMOS oscillators in 4-SMD packages with 1.8V operation. Compatible alternatives must match the pinout and envelope dimensions. Verify electrical parameters such as load capacitance and drive level before substitution.
