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Product Detailed Parameters
- Description：13.5873 MHz XO 1.8V 2.0X1.6MM OE
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：13.5873 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)：22mA
- 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 18QHTF21-13.5873-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 13.5873 MHz and utilizes LVCMOS output logic levels. The device is designed for low-voltage applications, featuring a supply voltage of 1.8V. A key functional attribute is the inclusion of an Enable/Disable control pin, allowing for power management flexibility in embedded systems. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6mm, suitable for space-constrained surface-mount designs.
Feature Summary
- Supports LVCMOS output signal compatibility
- Features integrated Enable/Disable control functionality
- Operates on a single 1.8V power supply rail
Applications
- Embedded system clock generation
- Digital signal processing timing references
- Communication interface synchronization
Procurement Notes
Verify the specific suffix 'OE' corresponds to the required Enable/Disable feature when sourcing replacements. Confirm that the 1.8V operating voltage aligns with the target circuit design. Ensure the 2.0x1.6mm footprint matches the PCB layout constraints. Check for RoHS compliance status if environmental regulations apply to the final assembly.
Selection Notes
Select this component when a precise 13.5873 MHz reference is required alongside active power control capabilities. The small 4-SMD package makes it ideal for high-density boards where space is limited. Consider the LVCMOS output swing requirements against the input thresholds of the receiving logic gates to ensure reliable signal integrity across the operating temperature range.
Part Context
This part belongs to the Mercury Electronics 18QHTF series of surface-mount crystal oscillators. The series typically offers various frequencies and supply voltages. The '18' prefix likely indicates the 1.8V supply variant, while 'QHTF' denotes the specific package and performance class within their oscillator portfolio.
Replacement Considerations
Direct substitutes must match the 13.5873 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm footprint. Verify that any alternative also includes the Enable/Disable pin configuration to maintain system power management functionality.
