ISM97-3251AH-20.000MHZ

Oscillators Overview

The ISM97-3251AH-20.000MHZ is a surface-mount crystal oscillator manufactured by ILSI America, operating at a nominal frequency of 20 MHz. It utilizes a ceramic package with dimensions of 2.5 mm x 3.2 mm and features four pins in an SMD configuration without lead. The device supports CMOS logic output levels compatible with standard TTL/HC-MOS interfaces. It includes an enable/disable function controlled via Pin 1, which must be held at or above 70% of Vdd to activate the output. The unit operates within a temperature range of -55°C to +125°C and complies with RoHS standards.

Oscillators Feature Summary

• Surface-mount ceramic package design for compact integration
• CMOS/TTL compatible logic level outputs
• Integrated enable and disable control functionality

Oscillators Applications

• General purpose clock signal generation
• Digital system timing references
• Embedded controller clock sources

Oscillators Procurement Notes

Verify the specific suffix code against the manufacturer's official part number guide to confirm voltage tolerance, frequency stability class, and duty cycle specifications. Ensure the ordering documentation explicitly matches the required operating temperature range and output load parameters defined in the datasheet tables before finalizing procurement orders.

Oscillators Selection Notes

Select this component when a small form factor oscillator is required for high-temperature environments. Confirm that the system power supply aligns with the specified voltage tolerance and that the load capacitance requirements match the circuit design. Verify that the enable pin logic thresholds are compatible with the controlling microcontroller or FPGA signals.

Oscillators Part Context

This model belongs to the ISM97 series of SMD oscillators from ILSI America. The series is characterized by its small ceramic footprint and wide industrial temperature rating. It serves as a standard clock source for digital circuits requiring precise timing without the complexity of PLL-based solutions.

Oscillators Replacement Considerations

Cross-reference with other ISM97 series variants sharing the same 2.5x3.2mm package and 20MHz frequency. Verify identical pinout configurations and electrical characteristics such as supply voltage and logic compatibility before substituting.