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Product Detailed Parameters
- Description：13.44 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：13.44 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 18QHTF21-13.440-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 13.44 MHz and utilizes LVCMOS output logic levels. The device supports a supply voltage of 1.8V and includes an enable/disable control function for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm. This component is designed for applications requiring precise timing signals within low-voltage digital systems.
Feature Summary
- LVCMOS output interface for standard digital logic compatibility
- Integrated enable/disable pin for active power control
- Compact 4-SMD no-lead surface mount package design
Applications
- General purpose clock signal generation in embedded systems
- Timing reference for microcontrollers operating at 1.8V
- Digital communication interfaces requiring stable frequency sources
Procurement Notes
Verify the specific suffix OE against official Mercury Electronics documentation to confirm enable functionality and electrical characteristics. Ensure the 1.8V supply requirement aligns with target system voltages. Confirm package dimensions match PCB footprint requirements before procurement.
Selection Notes
Select this component when a 13.44 MHz clock source is required with low voltage operation. Consider the enable feature if power conservation during idle states is necessary. Verify that the LVCMOS output swing matches the input thresholds of downstream logic circuits.
Part Context
This part belongs to the 18QHTF21 series from Mercury Electronics, which focuses on low-voltage crystal oscillators. The series typically offers various frequencies and package options. Mercury Electronics specializes in quartz crystals and timing components, providing solutions for consumer electronics and industrial applications.
Replacement Considerations
Direct substitutes include other 13.44 MHz LVCMOS oscillators in 4-SMD packages with 1.8V operation. Verify pinout compatibility and enable pin functionality. Cross-reference specifications with manufacturers like Epson or SiTime for equivalent performance metrics.
