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Product Detailed Parameters
- Description：6.54 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：6.54 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)：21mA
- 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 18QHTF21-6.540-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 6.540 MHz with an LVCMOS output type. The device requires a supply voltage of 1.8V and features enable/disable functionality. Frequency stability is rated at ±50ppm, and it supports an operating temperature range from -40°C to 85°C. The component is housed in a compact 4-SMD, No Lead package.
Feature Summary
- Provides LVCMOS output signals for digital circuit synchronization
- Includes hardware enable and disable control function
- Designed for operation within industrial temperature ranges
Applications
- Digital clock signal generation
- Microcontroller system timing
- Communication interface synchronization
Procurement Notes
Verify the specific suffix 'OE' against official Mercury Electronics documentation to confirm the exact enable/disable configuration and pinout compatibility. Ensure the 1.8V supply requirement aligns with the target system design. Confirm that the 4-SMD no-lead package dimensions match the PCB footprint specifications before finalizing procurement orders.
Selection Notes
Select this component when a low-voltage 1.8V LVCMOS oscillator is required for space-constrained designs. Consider the ±50ppm stability rating relative to system timing requirements. Verify that the industrial temperature range (-40°C to 85°C) meets environmental conditions. Ensure the enable/disable feature is necessary for power management strategies in the application.
Part Context
This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series typically offers various frequencies and voltage options in a small form factor. The 'OE' suffix likely denotes specific operational characteristics or packaging variants within this product line, distinguishing it from other similar models like the PD variant.
Replacement Considerations
Direct substitutes may include other 1.8V LVCMOS oscillators in 4-SMD packages with compatible frequency and stability ratings. Verify pin-to-pin compatibility and electrical parameters such as current consumption and load capacitance before substitution.
