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Product Detailed Parameters
- Description：67.563 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：67.563 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 18QHTF21-67.563-PD is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a fixed frequency of 67.563 MHz and utilizes LVCMOS output logic levels. The device requires a 1.8V supply voltage for operation. A key functional characteristic is the inclusion of a standby or power-down mode, allowing for energy management when the oscillator is not actively driving the load. The component is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly processes.
Feature Summary
- Supports low-voltage operation with a 1.8V supply requirement
- Provides LVCMOS output signal compatibility
- Includes standby functionality for power reduction
Applications
- Digital clock generation in embedded systems
- Timing reference for microcontroller units
- Synchronization in communication interfaces
Procurement Notes
Verify the specific frequency stability and phase noise parameters against the official datasheet before integration. Confirm that the 1.8V supply rail is stable within the required tolerance. Ensure the PCB footprint matches the 4-SMD No Lead package dimensions to prevent assembly errors.
Selection Notes
Select this component when a precise 67.563 MHz timing source is required with low power consumption capabilities. The LVCMOS interface ensures compatibility with standard digital logic families. Consider the standby feature if power efficiency is a critical design constraint for the application.
Part Context
This part belongs to the 18QHTF21 series of oscillators from Mercury Electronics. The series typically offers various frequency options within a standardized small outline package. Mercury Electronic Ind. Co., Ltd. is a specialized manufacturer of frequency control products, including quartz crystals and oscillators.
Replacement Considerations
Direct substitutes must match the 67.563 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD No Lead package. Verify pinout compatibility and thermal characteristics before swapping manufacturers.
