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Product Detailed Parameters
- Description：68.084 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：68.084 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 18QHTF21-68.084-OE is a 68.084 MHz crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates on a 1.8V supply voltage and features LVCMOS output logic. The device supports an Enable/Disable function for power management via a Standby mode. Frequency stability is rated at ±50ppm, with an operating temperature range of -40°C to 85°C. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.
Feature Summary
- Supports active low standby mode for power reduction
- Provides stable LVCMOS clock signals
- Compact surface-mount design
Applications
- Embedded system clock generation
- Consumer electronics timing circuits
- Industrial control modules
Procurement Notes
Verify the specific suffix 'OE' against official Mercury Electronics documentation to confirm the enable/disable pin configuration. Ensure the 1.8V supply requirement aligns with target circuit designs. Cross-reference the frequency tolerance of ±50ppm with application requirements before procurement.
Selection Notes
Select this component when a low-voltage 1.8V operation is required alongside precise frequency stability. The small 2.0x1.6mm footprint makes it suitable for space-constrained PCB layouts. Consider the ±50ppm stability rating relative to system timing accuracy needs.
Part Context
This part belongs to the Mercury QHTF series of high-frequency crystal oscillators. The series typically offers various frequencies and voltage options. The 18QHTF21 variant specifically targets applications requiring low power consumption and reliable timing performance in portable or industrial devices.
Replacement Considerations
Check for direct substitutes within the same Mercury QHTF series with compatible voltage and frequency specifications. Verify pinout compatibility if replacing with other manufacturers' oscillators.
FAQ
What is the output logic type?
The output logic is LVCMOS.
Does this oscillator support power saving modes?
Yes, it includes an Enable/Disable function allowing entry into Standby mode.
