18QHTF21-1.152-PD

Overview

The 18QHTF21-1.152-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 1.152 MHz and utilizes an LVCMOS output signal type. The device functions with a supply voltage of 1.8V and features a standby or power-down capability for energy management. It is housed in a compact 4-SMD, no lead package with dimensions of 2.0x1.6 mm.

Feature Summary

• Supports low-voltage operation at 1.8V
• Includes standby mode functionality
• Utilizes LVCMOS output interface

Applications

• General timing circuits
• Embedded systems requiring low-frequency clocks
• Portable electronic devices

Procurement Notes

Verify the specific ordering suffix to ensure the correct package variant and frequency tolerance match your design requirements. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the LVCMOS logic levels are compatible with the receiving digital inputs. Check the physical footprint compatibility with your PCB layout before finalizing procurement.

Selection Notes

Select this component when a precise 1.152 MHz clock source is required for low-power applications. The choice depends on the need for a small 2.0x1.6 mm footprint and the availability of a 1.8V power supply. Consider the LVCMOS output swing requirements of the connected microcontroller or logic gate. Evaluate if the standby feature provides necessary power savings in the target application.

Part Context

This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various frequencies and voltage options within a standardized small outline package. It serves as a timing reference solution for consumer electronics and industrial control systems where space constraints and power efficiency are critical design factors.

Replacement Considerations

Direct substitutes include other 1.152 MHz LVCMOS oscillators in a 4-SMD 2.0x1.6mm package with 1.8V operation. Verify pinout compatibility and electrical specifications such as load capacitance and drive strength before substitution.