18QHTF21-70.007-PD

Overview

The 18QHTF21-70.007-PD is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a nominal frequency of 70.007 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a standby or power-down function to manage energy consumption during idle periods. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm. This component is suitable for applications requiring precise timing signals within low-voltage digital systems.

Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated standby and power-down functionality
• Compact 4-SMD no-lead surface mount package

Applications

• General purpose clock signal generation
• Low voltage digital circuit timing
• Portable electronic devices requiring power management

Procurement Notes

Verify the specific operating temperature range and load capacitance requirements against the official datasheet before integration. Confirm that the 1.8V supply voltage aligns with the target system's power rails. Ensure the 2.0x1.6 mm footprint matches the PCB layout design. Check for any specific handling instructions related to the no-lead SMD package during assembly processes.

Selection Notes

Select this oscillator when a 70.007 MHz frequency is required with LVCMOS outputs. Consider the 1.8V supply constraint and the need for power-down capabilities. The small 2.0x1.6 mm package is ideal for space-constrained designs. Evaluate thermal performance and stability requirements against the manufacturer's specifications for the intended operating environment.

Part Context

This component belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronic Ind. Co., Ltd. The series offers various frequencies with consistent LVCMOS outputs and 1.8V operation. The 70.007-PD variant specifically targets applications needing this precise frequency point while maintaining the series' compact form factor and power efficiency features.

Replacement Considerations

Direct substitutes must match the 70.007 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and electrical characteristics with alternative manufacturers before substitution.