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Product Detailed Parameters
- Description：6.79 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：6.79 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 18QHTF21-6.790-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 6.790 MHz and utilizes LVCMOS output logic levels. The device is powered by a 1.8V supply voltage and includes an enable/disable control function for power management. It is housed in a compact 4-SMD surface-mount package, designed for integration into electronic circuits requiring precise timing signals.
Feature Summary
- Standard XO configuration with LVCMOS output interface
- Integrated enable and disable control functionality
- Compact 4-SMD surface-mount package design
Applications
- General-purpose digital circuit timing
- Embedded system clock generation
- Consumer electronics signal processing
Procurement Notes
Verify the specific part number against official manufacturer documentation to ensure accuracy. Confirm that the required operating voltage and output logic levels match the system design requirements. Check for any specific handling or storage conditions outlined in the datasheet to maintain component integrity during assembly and operation.
Selection Notes
Select this component when a low-voltage 1.8V supply is available and LVCMOS compatibility is required. The enable/disable feature makes it suitable for applications needing power conservation. Ensure the PCB layout supports the 4-SMD footprint and that the 6.790 MHz frequency aligns with the target system's clocking architecture.
Part Context
Mercury Electronic Ind. Co., Ltd. is a Taiwan-based manufacturer specializing in frequency-control products, including quartz crystals, oscillators, and filters. This model belongs to their series of surface-mount crystal oscillators, which are designed for reliable performance in various electronic applications requiring stable clock signals.
Replacement Considerations
Consult official substitution lists from Mercury Electronic Ind. Co., Ltd. for verified compatible alternatives. Ensure any replacement matches the 6.790 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package dimensions.
