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Product Detailed Parameters
- Description：6.1444 MHz XO 1.8V 2.0X1.6 MM PD
- Series：18QHTF21
- Mfr：Mercury Electronics Ind. Co. Ltd
- Package：Strip
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：6.1444 MHz
- Function：Standby (Power Down)
- 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 18QHTF21-6.1444-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 6.1444 MHz and utilizes LVCMOS output logic. The device requires a 1.8V supply voltage and features a standby mode for power down functionality. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications.
Feature Summary
- Supports low-voltage operation with 1.8V supply
- Includes standby capability for power management
- Utilizes LVCMOS output interface
Applications
- Battery-powered portable devices
- General timing clock applications
- Embedded systems requiring low power consumption
Procurement Notes
Verify the specific frequency tolerance and load capacitance requirements against your system design before procurement. Ensure the 4-SMD no-lead package dimensions align with your PCB footprint. Confirm that the LVCMOS output voltage levels are compatible with the receiving logic inputs to prevent signal integrity issues or damage.
Selection Notes
Select this component when a precise 6.1444 MHz reference is required in space-constrained designs. The 1.8V operating voltage makes it suitable for modern low-power digital circuits. Consider the standby feature if power efficiency during idle periods is a critical design parameter for the target application.
Part Context
Mercury Electronic Ind. Co., Ltd. is a Taiwan-based manufacturer specializing in frequency control products, including quartz crystals and oscillators. This part belongs to their series of surface-mount crystal oscillators, which are designed to provide stable timing signals for various electronic circuits with a focus on reliability and compact form factors.
Replacement Considerations
Check datasheets for alternative models from Mercury Electronics or other manufacturers offering 6.1444 MHz frequency, 1.8V supply, and LVCMOS output in a 4-SMD package. Ensure pinout compatibility and electrical specifications match to guarantee seamless integration without circuit redesign.
