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Product Detailed Parameters
- Description：64.22 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：64.22 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 18QHTF21-64.220-PD is a 64.22 MHz crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a supply voltage of 1.8V and features an LVCMOS output logic interface. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm. It supports a Standby (Power Down) mode for power management. The device is designed for surface-mount applications requiring precise frequency control.
Feature Summary
- Integrated crystal oscillator providing stable 64.22 MHz frequency generation
- Low voltage operation at 1.8V with LVCMOS output compatibility
- Compact 4-SMD no-lead footprint suitable for space-constrained designs
- Includes standby functionality to reduce power consumption during idle periods
Applications
- Digital signal processing systems requiring clock synchronization
- Communication equipment utilizing standard logic interfaces
- Embedded systems with low-power surface-mount requirements
Procurement Notes
Verify the specific ordering suffix and voltage rating against the official datasheet before procurement. Ensure the 1.8V supply requirement aligns with system design constraints. Confirm the 4-SMD package dimensions fit the PCB layout. Check for any specific environmental or temperature range specifications required for the application environment.
Selection Notes
Select this component when a 64.22 MHz clock source is needed with LVCMOS outputs. Consider the 1.8V operating voltage and small 2.0x1.6mm package size. Evaluate the need for standby power-down capabilities. Compare against other Mercury WE-HCF series options if different frequencies or voltages are required.
Part Context
This part belongs to the Mercury Electronics XO family, specifically the 18QHTF21 series. These oscillators are known for their reliability in frequency control applications. The manufacturer has extensive experience in crystal industry products since 1973. This model represents a standard configuration within their surface-mount oscillator portfolio.
Replacement Considerations
Check for equivalent parts in the same series with different frequencies or voltages. Verify pinout and package compatibility for direct replacement. Consult official substitution lists from Mercury Electronics for validated alternatives.
