18QHTF21-23.51222-PD

Oscillators Overview

The 18QHTF21-23.51222-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 23.51222 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a standby or power-down mode capability. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0 x 1.6 mm.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Includes standby and power-down functionality
• Utilizes LVCMOS output logic for digital interfacing

Oscillators Applications

• General clock signal generation in embedded systems
• Timing reference for digital circuits requiring LVCMOS compatibility
• Portable electronic devices due to low voltage and small form factor

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Ensure that the 1.8V supply rail is stable and within the operational limits specified in the official datasheet. Confirm that the PCB layout supports the 4-SMD no-lead package footprint to ensure reliable soldering and electrical connection during assembly.

Oscillators Selection Notes

Select this component when a precise 23.51222 MHz timing source is required for LVCMOS-compatible logic families. The choice is driven by the need for low power consumption via the 1.8V supply and the availability of a power-down feature for energy management. Consider the physical constraints of the 2.0x1.6mm package size relative to the available board space.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series typically offers various frequencies and voltage levels, all sharing a common small-footprint SMD package. The 'PD' suffix indicates the inclusion of power-down control, distinguishing it from continuous-operation variants within the same family.

Oscillators Replacement Considerations

Direct replacements must match the 23.51222 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package dimensions. Verify pinout compatibility and thermal characteristics. Cross-reference with other Mercury Electronics models in the 18QHTF21 series that share identical electrical and mechanical specifications.