18QHTF21-26.991-OE

Oscillators Overview

The 18QHTF21-26.991-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 26.991 MHz and utilizes LVCMOS output logic. The device requires a supply voltage of 1.8V and features an enable/disable control function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm.

Oscillators Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes enable and disable functionality for power management
• Utilizes a small form factor SMD package for surface mount assembly

Oscillators Applications

• General clock signal generation in electronic circuits
• Timing reference for digital systems requiring 26.991 MHz
• Embedded devices utilizing LVCMOS interfaces

Oscillators Procurement Notes

Verify the specific frequency tolerance and operating temperature range against the official datasheet before procurement. Confirm that the 1.8V supply voltage aligns with the target system design. Ensure the 4-SMD no-lead package footprint matches the PCB layout requirements to prevent assembly issues.

Oscillators Selection Notes

Select this component when a precise 26.991 MHz timing source is required with low voltage operation. The LVCMOS output is suitable for standard digital logic families. Consider the enable pin feature if power conservation during idle states is necessary for the application design.

Oscillators Part Context

This part belongs to the Mercury Electronics 18QHTF series of crystal oscillators. The series offers various frequencies and packages. This specific model provides a standard XO solution with integrated enable control, distinguishing it from basic continuous-output variants within the same product line.

Oscillators Replacement Considerations

Direct substitutes must match the 26.991 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify electrical parameters and pinout compatibility before substitution.