ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：66.4429 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：66.4429 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：-
Download product information
Overview
The 18QHTF21-66.4429-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 66.4429 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and features an enable/disable control function. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.
Feature Summary
- LVCMOS output logic for digital interface compatibility
- Integrated enable/disable functionality for power management
- Compact 4-SMD no-lead surface mount package design
Applications
- General purpose clock signal generation
- Digital system timing references
- Embedded controller clock sources
Procurement Notes
Verify the specific suffix OE against the manufacturer's official documentation to confirm pinout and electrical characteristics match the target design requirements. Ensure the 1.8V supply voltage aligns with the system power rails. Confirm the 4-SMD package dimensions fit the PCB footprint constraints before finalizing component selection.
Selection Notes
Select this component when a low-voltage 1.8V LVCMOS clock source is required. The enable/disable feature allows for dynamic power control in battery-operated devices. Consider the 4-SMD package size for space-constrained layouts. Verify that the 66.4429 MHz frequency meets the system timing specifications without requiring external dividers or multipliers.
Part Context
This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz crystal products. The series offers various frequencies and voltage options. Mercury Electronics has a long history in Taiwan's quartz industry, providing standardized oscillators for consumer and industrial electronics.
Replacement Considerations
Check for identical part numbers with different suffixes such as PD, which may indicate variations in packaging or lead time but not necessarily functional differences. Cross-reference with other 1.8V LVCMOS oscillators in the same package if availability is an issue.
