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Product Detailed Parameters
- Description：63.0 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：63 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 18QHTF21-63.000-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 63 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and features an Enable/Disable control function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.
Feature Summary
- Supports LVCMOS output logic for digital interface compatibility
- Includes hardware enable/disable control functionality
- Utilizes a leadless SMD package for surface mount assembly
Applications
- General purpose clock generation in embedded systems
- Timing reference for microprocessors and microcontrollers
- Data communication interface synchronization
Procurement Notes
Verify the specific ordering suffix to ensure the correct voltage and package variant matches the design requirements. Confirm that the manufacturer documentation explicitly lists the 1.8V supply and LVCMOS output for this exact part number before procurement. Cross-reference the pinout and enable signal polarity with the official datasheet to prevent integration errors during board layout and testing phases.
Selection Notes
Select this component when a low-profile surface-mount oscillator is required for space-constrained designs. The choice depends on the need for a standard XO with enable capability rather than spread-spectrum or temperature-compensated variants. Ensure the system power rail provides a stable 1.8V supply and that the load capacitance requirements align with the oscillator specifications provided in the technical data.
Part Context
This part belongs to the 18QHTF21 series from Mercury Electronic Ind. Co., Ltd, a supplier specializing in quartz crystals and oscillators. The series typically includes various frequencies within the 2.0x1.6mm footprint. This specific model represents the 63 MHz configuration within the standard XO family, distinguished by its LVCMOS output and enable feature compared to other variants in the lineup.
Replacement Considerations
Direct substitutes include other 63 MHz LVCMOS oscillators in 2.0x1.6mm packages with enable pins. Verify pin-to-pin compatibility and electrical parameters such as current consumption and startup time. Alternative parts must support the same 1.8V supply voltage and meet the required frequency stability and phase noise specifications for the application.
