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Product Detailed Parameters
- Description：80.157 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：80.157 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 18QHTF21-80.157-PD is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 80.157 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 in space-constrained electronic designs requiring precise timing signals.
Feature Summary
- LVCMOS output interface for digital circuit compatibility
- Integrated standby mode for power reduction
- Compact 4-SMD no-lead surface mount package
Applications
- Digital signal processing systems
- Communication equipment clocking
- Embedded system timing references
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against the official datasheet before procurement. Confirm that the 1.8V supply voltage aligns with the target system's power rails. Ensure the 4-SMD no-lead footprint matches the PCB land pattern design to guarantee proper solder joint formation and mechanical stability during assembly processes.
Selection Notes
Select this component when a low-voltage 1.8V operation is required alongside a standard LVCMOS interface. The choice is appropriate for applications prioritizing reduced power consumption through the available standby feature. Consider the physical dimensions of the 4-SMD package to ensure it fits within the designated area on the printed circuit board without interfering with adjacent components.
Part Context
Mercury Electronic Ind. Co., Ltd. is a Taiwan-based manufacturer specializing in frequency control products, including quartz crystals and oscillators. The company has a long history in the industry, producing various timing solutions such as TCXOs and VCTCXOs. This specific model belongs to their line of standard crystal oscillators designed for modern electronic applications requiring reliable clock signals.
Replacement Considerations
Consult the official Mercury Electronic datasheet for direct pin-compatible substitutes. Verify that any alternative part maintains the same 80.157 MHz frequency, 1.8V operating voltage, and LVCMOS output characteristics. Ensure the replacement also offers the standby functionality and fits the 4-SMD no-lead package form factor.
