ISM95-1251AH-27.000MHZ

Oscillators Overview

The ISM95-1251AH-27.000MHZ is a standard CMOS crystal oscillator manufactured by ILSI, operating at a fixed frequency of 27 MHz. It functions within a supply voltage range of 1.8V and supports an enable/disable control interface for power management. The device exhibits a frequency stability of ±25ppm and draws a maximum supply current of 20mA. Designed for robust performance, it operates across an extended temperature range from -40°C to +85°C. The component utilizes a compact 4-SMD, no-lead surface-mount package, facilitating automated assembly and integration into space-constrained electronic designs requiring precise timing signals.

Oscillators Feature Summary

• CMOS output signal generation with integrated enable/disable functionality
• Compact 4-SMD no-lead surface-mount package design
• Extended industrial temperature operation capability

Oscillators Applications

• Digital clock signal distribution in embedded systems
• Timing reference for microcontroller peripherals
• Communication interface synchronization circuits

Oscillators Procurement Notes

Verify the specific suffix configuration against official ILSI documentation to ensure compatibility with required voltage levels and load capacitance parameters. Confirm that the 4-SMD footprint matches the target PCB layout dimensions. Cross-reference the enable pin logic polarity with system power management schemes to guarantee correct operational states during initialization and standby modes.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V CMOS oscillator is required for applications demanding moderate frequency stability. The enable/disable feature makes it suitable for battery-powered devices requiring active power management. Ensure the thermal environment remains within the specified -40°C to +85°C range to maintain guaranteed performance specifications without derating.

Oscillators Part Context

This model belongs to the ISM95 series of surface-mount oscillators from ILSI. The series provides various frequency options within the same physical footprint, allowing for design flexibility. The 27 MHz variant specifically targets legacy or specialized digital interfaces requiring this standard clock rate while maintaining modern low-power CMOS characteristics.

Oscillators Replacement Considerations

Direct substitutes must match the 27 MHz frequency, 1.8V supply, CMOS output type, and 4-SMD package. Verify equivalent stability and temperature ranges before substitution.