ISM92-3251AH-25.000MHZ

Oscillators Overview

The ISM92-3251AH-25.000MHZ is a standard clock oscillator manufactured by ILSI, operating at a nominal frequency of 25 MHz. It utilizes HCMOS and TTL compatible output logic levels and functions with a supply voltage of 3.3V. The device features an enable/disable control pin for power management. It is housed in a compact 4-SMD, no-lead ceramic package measuring 2.0 mm x 2.5 mm. This component is designed for surface-mount applications requiring low jitter performance without PLL-based architecture.

Oscillators Feature Summary

• HCMOS/TTL compatible output logic levels
• Low jitter, non-PLL based output architecture
• Enable/Disable control functionality
• Compatible with lead-free processing

Oscillators Applications

• Fibre Channel Server & Storage systems
• Sonet/SDH network infrastructure
• 802.11 / Wifi wireless connectivity modules
• T1/E1 and T3/E3 system clocking

Oscillators Procurement Notes

Verify the specific suffix codes against official ILSI documentation to confirm exact electrical tolerances and packaging configurations. Ensure compatibility with lead-free manufacturing processes if required by assembly specifications. Cross-reference the part number with current distributor catalogs to confirm active status and availability constraints prior to ordering.

Oscillators Selection Notes

Select this oscillator when a 25 MHz reference signal with HCMOS or TTL interface compatibility is required. Consider the 3.3V supply requirement and the need for an enable/disable feature for power optimization. Evaluate the 4-SMD no-lead package dimensions against PCB layout constraints. Confirm that the non-PLL architecture meets the jitter specifications for the target application bandwidth.

Oscillators Part Context

This component belongs to the ISM92 series of surface-mount oscillators from ILSI. The series offers various frequency options within a standardized ceramic package format. The ISM92-3251AH variant specifically denotes the 25 MHz frequency option with HCMOS/TTL outputs. It is part of a broader family of clock generators used in high-speed digital communication and storage interfaces.

Oscillators Replacement Considerations

Direct substitutes include other ISM92 series parts with identical package and electrical characteristics but different frequencies, such as ISM92-3251AH-16.000MHZ or ISM92-3251AH-8.000MHZ. Verify pinout and voltage compatibility before substituting with components from other manufacturers.