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Product Detailed Parameters
- Description：80.33 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：80.33 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 18QHTF21-80.330-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 80.33 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes a standby or power-down feature for energy management. It is housed in a compact 4-SMD, no lead package with dimensions of 2.0x1.6 mm.
Feature Summary
- Supports LVCMOS output logic for digital interface compatibility
- Integrates standby mode to reduce power consumption during idle periods
- Utilizes a surface-mount 4-SMD no-lead package for automated assembly
Applications
- Digital signal processing systems requiring precise clock timing
- Communication equipment utilizing standard frequency references
- Embedded control units needing low-voltage clock sources
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against the system design specifications before procurement. Confirm that the 1.8V supply voltage aligns with the target circuit's power rails. Ensure the 4-SMD package footprint matches the PCB layout constraints. Cross-reference the datasheet for operating temperature ranges to guarantee reliability under expected environmental conditions.
Selection Notes
Select this component when a standard frequency reference near 80 MHz is required with low voltage operation. Consider the LVCMOS output compatibility with downstream digital logic families. Evaluate the need for power-down functionality if energy efficiency is a priority. Compare package dimensions against available board space to ensure mechanical fit within the assembly constraints.
Part Context
This part belongs to the Mercury Electronics XO series designed for general-purpose clock generation. The manufacturer specializes in quartz crystals and frequency control products. The model number indicates a specific frequency variant within the broader family of surface-mount oscillators offered by the company.
Replacement Considerations
Direct substitutes must match the 80.33 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and electrical characteristics such as phase noise and jitter before substitution.
