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Product Detailed Parameters
- Description：74.53 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：74.53 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 18QHTF21-74.530-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 74.53 MHz and utilizes LVCMOS output logic. The device requires a supply voltage of 1.8V and features an enable/disable control function for power management. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.
Feature Summary
- LVCMOS output logic for digital interface compatibility
- Enable/disable pin for active power management
- Standard XO configuration for general timing needs
Applications
- Digital signal processing systems
- Communication equipment clocking
- Embedded system timing references
Procurement Notes
Verify the specific suffix 'OE' confirms the enable/disable functionality and 1.8V operation. Ensure the frequency tolerance and load capacitance requirements match the target circuit design. Confirm the 4-SMD no-lead package dimensions align with PCB footprint specifications before finalizing procurement orders.
Selection Notes
Select this component when a 74.53 MHz reference is required with low-voltage 1.8V operation. The enable feature allows for dynamic power saving in battery-operated devices. Compare against other Mercury models to ensure the standard output type meets the noise and drive strength requirements of the downstream logic.
Part Context
This part belongs to the 18QHTF21 series from Mercury Electronic Ind. Co. Ltd, a manufacturer specializing in quartz crystals and oscillators since 1973. The series offers various frequencies and supply voltages, with the OE suffix indicating specific control capabilities distinct from standby or fixed-output variants.
Replacement Considerations
Direct substitutes include the 18QHTF21-74.530-PD if power-down rather than enable/disable control is acceptable. Other frequencies in the series such as 74.500 MHz or 65.300 MHz may serve similar roles if frequency adjustments are permissible within the system design constraints.
