ISM97-1251AH-25.000MHZ

Oscillators Overview

The ISM97-1251AH-25.000MHZ is a standard CMOS crystal oscillator manufactured by ILSI, operating at a frequency of 25 MHz. It supports a supply voltage of 1.8V and features an enable/disable control function. The device utilizes a ceramic package with dimensions of 3.20mm x 2.50mm in a 4-SMD, no lead configuration. It offers a frequency stability of ±25ppm and operates within a temperature range of -40°C to 85°C. Maximum supply current is 20mA, with disabled current limited to 10µA.

Oscillators Feature Summary

• Integrated enable and disable functionality for power management
• CMOS output signal compatible with TTL and HC-MOS logic levels
• Compact ceramic surface-mount package design

Oscillators Applications

• General purpose clock generation in embedded systems
• Timing reference for digital communication interfaces
• Microcontroller and processor clock sources

Oscillators Procurement Notes

Verify the specific suffix AH against the manufacturer's official datasheet to confirm pinout and electrical characteristics match the target design requirements. Ensure the 1.8V supply voltage aligns with the system power rails. Confirm that the 4-SMD no-lead package footprint matches the PCB layout specifications. Check for RoHS compliance status if required by project regulations.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside precise 25MHz timing. The ±25ppm stability suits applications tolerant of moderate frequency drift. The enable/disable feature allows for dynamic power savings. Consider the 3.2x2.5mm package size for space-constrained designs requiring SMD mounting without exposed leads.

Oscillators Part Context

This part belongs to the ISM97 series of surface-mount oscillators from ILSI. The series includes various frequencies and voltage options, such as 16MHz and 66.666MHz variants. The ISM97 line generally targets compact electronic devices requiring reliable clock signals in small form factors.

Oscillators Replacement Considerations

Direct substitutes include other ISM97 series parts like ISM97-1251AH-16.000MHZ or ISM97-1251AH-66.666MHZ if frequency adjustment is acceptable. Cross-brand replacements require matching voltage, package, and output type.