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Product Detailed Parameters
- Description：6.85 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：6.85 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 18QHTF21-6.850-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 6.85 MHz and utilizes LVCMOS output logic levels. The device is designed for low-voltage applications, functioning with a supply voltage of 1.8V. It features an enable/disable control function to manage power consumption. The component is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly on printed circuit boards.
Feature Summary
- LVCMOS output interface for digital logic compatibility
- Integrated enable and disable control functionality
- Low voltage operation at 1.8V supply
- Compact surface-mount package design
Applications
- Portable electronic devices requiring low power consumption
- Communication equipment utilizing standard clock signals
- Embedded systems needing precise timing references
- Consumer electronics with space-constrained layouts
Procurement Notes
Verify the specific suffix 'OE' against official Mercury Electronics documentation to confirm the exact enable/disable configuration and packaging variant. Ensure that the 1.8V supply requirement aligns with the target system's voltage rails. Cross-reference the 6.85 MHz frequency specification with the application's clock input requirements to prevent timing mismatches.
Selection Notes
Select this component when a low-profile, surface-mount oscillator with enable control is required for 1.8V logic systems. Consider the LVCMOS output compatibility with downstream digital circuits. Evaluate the thermal and mechanical constraints of the 4-SMD package within the PCB layout. Confirm that the standard frequency stability meets the system's jitter and accuracy specifications.
Part Context
Mercury Electronics Ind. Co. Ltd specializes in frequency control products, including quartz crystals and oscillators. The 18QHT series represents their line of standard crystal oscillators designed for general-purpose timing applications. This model fits within their portfolio of compact, low-power solutions for modern electronic designs.
FAQ
What is the output logic type of the 18QHTF21-6.850-OE?
The output logic type is LVCMOS (Low Voltage Complementary Metal-Oxide-Semiconductor).
Does the 18QHTF21-6.850-OE support power management controls?
Yes, it includes an enable and disable function to control the oscillator output.
