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Product Detailed Parameters
- Description：80.64 MHz XO 1.8V 2.0X1.6 MM OE
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：80.64 MHz
- Function：Enable/Disable
- 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 18QHTF21-80.640-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 80.64 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes enable/disable control capabilities. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. The component is designed for surface mount applications within specified temperature ranges.
Feature Summary
- Integrates LVCMOS output logic for digital interface compatibility
- Supports active enable and disable control functionality
- Utilizes a leadless SMD package for space-constrained designs
Applications
- Embedded systems requiring precise clock timing
- Digital signal processing circuits
- Communication modules utilizing standard logic interfaces
Procurement Notes
Verify the specific suffix 'OE' against official Mercury Electronics documentation to confirm the enable/disable feature set. Ensure the operating voltage requirement aligns with the 1.8V specification before integration. Cross-reference the package outline drawing to confirm mechanical fitment within the target PCB layout constraints.
Selection Notes
Select this component when a low-voltage 1.8V operation is required alongside an enable pin for power management. The small 2.0x1.6mm footprint makes it suitable for dense layouts. Confirm that the LVCMOS output swing matches the input requirements of the downstream logic family to ensure signal integrity.
Part Context
This part belongs to the 18QHTF series of quartz oscillators from Mercury Electronics. The series offers various frequencies and packages. The '18' prefix typically indicates the 1.8V supply voltage range. The 'OE' suffix denotes the inclusion of an output enable function, distinguishing it from standard continuous-output variants within the same form factor.
Replacement Considerations
Direct substitutes include other 18QHTF21 series parts with identical 80.64MHz frequency and OE suffix. Verify pinout compatibility and electrical specifications before swapping. Alternative manufacturers may offer similar footprints but require validation of voltage and logic levels.
