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Product Detailed Parameters
- Description：114.544 MHz XO 1.8V 2.0X1.6MM OE
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：114.544 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)：28mA
- 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 18QHTF21-114.544-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 114.544 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 logic for digital interface compatibility
- Integrated enable/disable pin for power control
- Surface-mount 4-SMD no-lead package design
Applications
- Digital signal processing systems
- Communication equipment clocking
- Embedded system timing references
Procurement Notes
Verify the specific suffix OE against the manufacturer's current datasheet to confirm availability and exact electrical tolerances. Ensure the 1.8V supply requirement matches the target circuit design before integration. Cross-reference the 4-SMD package dimensions with PCB footprint guidelines to guarantee mechanical fit during assembly.
Selection Notes
Select this component when a stable 114.544 MHz reference is required with low-voltage operation. The LVCMOS output suits direct interfacing with digital logic without additional level shifting. Consider the enable feature if system power efficiency is a priority. Confirm temperature range specifications meet environmental operating conditions.
Part Context
This oscillator belongs to the Mercury Electronics XO series, which provides standard frequency solutions. The 18QHTF21 series typically offers reliable performance for general-purpose timing applications. Mercury Electronics has established expertise in quartz crystal manufacturing since 1973, supporting various industrial and consumer electronics needs.
Replacement Considerations
Direct substitutes include other 114.544 MHz LVCMOS oscillators in compatible packages. Verify pinout compatibility and electrical parameters such as load capacitance and drive level. Alternative part numbers from different manufacturers may require schematic adjustments due to differing enable logic or voltage thresholds.
