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Product Detailed Parameters
- Description：67.6 MHz XO 1.8V 2.0X1.6 MM PD
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：67.6 MHz
- Function：Standby (Power Down)
- 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)：26mA
- 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 18QHTF21-67.600-PD is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a fixed frequency of 67.6 MHz and utilizes LVCMOS output logic levels. The device supports a supply voltage of 1.8V and includes a standby or power-down function for energy management. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly processes.
Feature Summary
- LVCMOS output interface
- Standby mode support
- Surface-mount construction
Applications
- General timing clock generation
- Digital signal processing systems
- Communication equipment
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the 4-SMD no-lead package dimensions fit within the designated footprint on the printed circuit board to avoid mechanical interference during assembly.
Selection Notes
Select this component when a precise 67.6 MHz reference is required with low-power standby capabilities. The LVCMOS output is compatible with standard digital logic families. Consider the operating temperature range specifications to ensure reliability under environmental stress conditions typical of the intended application environment.
Part Context
This part belongs to the Mercury Electronics XO series, which provides standard oscillators for various timing applications. The manufacturer specializes in quartz crystals and timing components, offering a range of frequencies and packages. This specific model represents a standard configuration within their portfolio of surface-mount oscillators.
Replacement Considerations
Direct substitutes must match the 67.6 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD package. Verify pinout compatibility and electrical characteristics before substitution. Cross-reference with other manufacturers' equivalent parts ensuring identical form factor and performance parameters.
