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Product Detailed Parameters
- Description：57.7617 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：57.7617 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)：24mA
- 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 18QHTF21-57.7617-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 57.7617 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes an enable/disable control feature. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.
Feature Summary
- Integrates enable and disable functionality for power management
- Utilizes LVCMOS output logic for digital interface compatibility
- Features a leadless SMD package for automated assembly
Applications
- General purpose clock signal generation
- Digital circuit timing reference
- Embedded system synchronization
Procurement Notes
Verify the specific ordering suffix to ensure the correct voltage and package variant matches the design requirements. Confirm that the enable/disable pin configuration aligns with the host controller's GPIO capabilities. Review the manufacturer datasheet for thermal and electrical specifications before finalizing the bill of materials.
Selection Notes
Select this component when a 1.8V supply is available and low-power standby modes are required via the enable pin. Ensure the 57.7617 MHz frequency meets the system clock needs. Compare against other Mercury series oscillators if different voltage levels or package sizes are necessary for the PCB layout constraints.
Part Context
This part belongs to Mercury Electronics' standard XO series, which provides reliable quartz-based timing solutions. The company specializes in frequency control products including crystals and oscillators. This specific model represents a surface-mount option suitable for modern electronics manufacturing processes.
Replacement Considerations
Direct substitutes include the 3QHTF21-57.7617-OE and 3QHTF22-57.7617-OE from the same manufacturer. These alternatives offer similar frequencies but operate at 3.3V instead of 1.8V. Verify voltage compatibility before swapping components in existing designs.
