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Product Detailed Parameters
- Description：76.5 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：76.5 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 18QHTF21-76.500-PD is a 76.5 MHz crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It utilizes LVCMOS output logic and operates at a supply voltage of 1.8V. The component features a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. It supports a Standby or Power Down mode for energy management. The device is designed for standard clock signal generation applications requiring precise frequency stability.
Feature Summary
- LVCMOS output logic interface
- Integrated standby power down capability
- Compact surface-mount form factor
Applications
- General clock signal generation
- Digital system timing references
- Embedded circuit synchronization
Procurement Notes
Verify the specific part number suffix against official manufacturer documentation to confirm package type and electrical specifications. Ensure compatibility with target voltage levels and load requirements before integration. Cross-reference datasheet parameters for operating temperature ranges and tolerance values to validate suitability for the intended environment.
Selection Notes
Select this component based on the required 76.5 MHz frequency and 1.8V supply constraint. Evaluate the 2.0x1.6mm footprint against available PCB space. Confirm that LVCMOS output levels match the input thresholds of the receiving logic. Consider the power-down feature if energy efficiency during idle states is a design priority.
Part Context
This oscillator belongs to the Mercury Electronics 18QHTF21 series, which offers various standard frequencies in a small SMD package. The series typically provides LVCMOS outputs and supports power management modes. Mercury Electronics is a established manufacturer of frequency control products, providing quartz-based solutions for electronic circuits.
Replacement Considerations
Direct substitutes include other 76.5 MHz LVCMOS oscillators in 4-SMD No Lead packages from compatible manufacturers. Verify pinout compatibility and voltage levels when cross-referencing alternative sources. Check datasheets for equivalent frequency stability and operating temperature specifications.
