ISM97-3251AH-40.000MHZ

Oscillators Overview

The ISM97-3251AH-40.000MHZ is a 40 MHz HCMOS/TTL output clock oscillator manufactured by ILSI. It operates within a supply voltage range of 2.85 V to 3.15 V, with a nominal voltage of 3 V. The device features a surface-mount ceramic package measuring 3.2 mm x 5.0 mm x 1.6 mm and contains four pins. It supports an operating temperature range from -40 °C to 85 °C. The oscillator provides low jitter performance without PLL-based architecture and includes enable/disable functionality.

Oscillators Feature Summary

• Low jitter, non-PLL based output
• HCMOS/TTL compatible logic levels
• Enable/Disable control capability

Oscillators Applications

• Fibre Channel Server & Storage
• Sonet / SDH systems
• 802.11 / Wifi networks
• T1/E1, T3/E3 System Clock

Oscillators Procurement Notes

Verify the specific suffix codes against official ILSI documentation to ensure correct frequency tolerance, load capacitance, and pin configuration. Confirm that the ordering part number matches the required operational temperature range and supply voltage specifications for the target application environment.

Oscillators Selection Notes

Select this component when a compact 3.2 mm x 5.0 mm SMD footprint is required for 40 MHz timing applications. Ensure the system design accommodates the 3 V nominal supply voltage and utilizes HCMOS or TTL compatible input thresholds for proper signal interfacing and noise immunity.

Oscillators Part Context

This model belongs to the ISM97 series of ceramic surface-mount oscillators from ILSI. These devices are designed for high-reliability digital timing applications requiring stable frequency generation in space-constrained environments. The series supports various frequencies and logic outputs tailored for telecommunications and data storage interfaces.

Oscillators Replacement Considerations

Cross-reference with other ISM97 series variants for different frequencies or package sizes. Verify compatibility with ISM91 or ISM92 series components if form-factor changes are permissible, ensuring electrical parameters such as voltage and jitter meet system requirements.