18QHTF21-19.456-OE

Oscillators Overview

The 18QHTF21-19.456-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 19.456 MHz and utilizes an LVCMOS output interface. The device is designed for low-voltage applications, requiring a 1.8V supply voltage. It features integrated Enable/Disable functionality to manage power consumption. The component is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly.

Oscillators Feature Summary

• LVCMOS output interface for digital logic compatibility
• Integrated Enable/Disable control capability
• Low voltage operation at 1.8V
• Compact 4-SMD no-lead surface mount package

Oscillators Applications

• Digital signal processing circuits
• Communication equipment clock sources
• Embedded system timing references
• Consumer electronics mainboards

Oscillators Procurement Notes

Verify the specific ordering suffix '-OE' against the manufacturer's current datasheet to ensure it matches the required enable/disable configuration and tolerance specifications. Confirm that the 1.8V supply requirement aligns with the target system's power rails before procurement. Check for any recent revisions to the 18QHTF21 series documentation regarding pinout or electrical characteristics.

Oscillators Selection Notes

Select this component when a precise 19.456 MHz reference is required for LVCMOS-compatible digital interfaces. Ensure the design supports a 1.8V supply rail, as the device does not support higher voltage inputs. Consider the 4-SMD package dimensions for PCB layout constraints. Evaluate if the built-in enable/disable feature meets the system's power management requirements compared to external gating solutions.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronic Ind. Co., Ltd. The series offers various frequencies and voltage options, with the 18QHTF21 specifically denoting the 1.8V variant. Mercury Electronics is a established manufacturer of frequency control products, providing standardized XO solutions for industrial and consumer applications.

Oscillators Replacement Considerations

Direct substitutes include other 19.456 MHz LVCMOS oscillators in 4-SMD packages with 1.8V operation and enable pins. Verify pin-to-pin compatibility and electrical parameter equivalence. Cross-reference with similar Mercury models like the 25QHTF22 series if voltage differences are acceptable.