18QHTF21-18.270-PD

Oscillators Overview

The 18QHTF21-18.270-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 18.27 MHz and utilizes LVCMOS output logic levels. The device requires a supply voltage of 1.8V and includes a standby or power-down function for energy management. It is housed in a compact 4-SMD, No Lead package designed for surface-mount assembly.

Oscillators Feature Summary

• Supports low-voltage operation with 1.8V supply requirement
• Features LVCMOS output interface for digital compatibility
• Includes standby mode capability to reduce power consumption

Oscillators Applications

• General-purpose clock signal generation in embedded systems
• Timing reference for microcontrollers requiring 18.27 MHz input
• Consumer electronics utilizing surface-mount oscillators

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 1.8V supply rail is stable and within the operational limits specified in the official datasheet. Ensure PCB footprint matches the 4-SMD no-lead package dimensions to guarantee proper soldering and electrical connection during assembly processes.

Oscillators Selection Notes

Select this component when a precise 18.27 MHz timing source is required with low power consumption constraints. The LVCMOS output ensures compatibility with standard digital logic families operating at 1.8V. Consider the physical size of the 4-SMD package for space-constrained designs. Verify that the application environment does not exceed the thermal specifications defined in the manufacturer's documentation.

Oscillators Part Context

This model belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronics. The series typically offers various frequencies with standardized LVCMOS outputs and low-voltage operation. The 'PD' suffix indicates the inclusion of a power-down feature, distinguishing it from continuous-operation variants within the same package family.

Oscillators Replacement Considerations

Direct substitutes must match the 18.27 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Check equivalent models from other manufacturers ensuring identical pinout and electrical characteristics. Verify that any replacement supports the standby function if required by the system design.