ISM91-5161CH- 4.000MHZ

Oscillators Overview

The ISM91-5161CH-4.000MHZ is a ceramic surface-mount oscillator manufactured by ILSI America LLC. It operates at a nominal frequency of 4.000 MHz and features HCMOS and TTL output types. The device utilizes a 5V enable/disable control mechanism for power management. It is housed in a 4-SMD, no-lead package with dimensions of 5 mm x 7 mm. The component supports an operating temperature range of 0°C to 70°C, making it suitable for standard commercial applications requiring precise clock signals.

Oscillators Feature Summary

• Integrated enable/disable functionality via 5V control signal
• Dual compatibility with HCMOS and TTL logic families
• Robust ceramic SMD construction for reliable surface mounting

Oscillators Applications

• General-purpose digital circuit clock generation
• Microcontroller system timing references
• Commercial electronic equipment requiring stable oscillation

Oscillators Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to ensure correct frequency tolerance and load capacitance specifications. Confirm that the 4-SMD no-lead package footprint matches the target PCB design. Check for any recent revisions to the ISM91 series documentation that may affect pinout or electrical characteristics prior to final procurement.

Oscillators Selection Notes

Select this component when a 4 MHz reference is required for systems compatible with both HCMOS and TTL interfaces. The 5V enable feature allows for dynamic power control in battery-operated or energy-efficient designs. Ensure the operating temperature range of 0°C to 70°C aligns with the environmental conditions of the intended application environment.

Oscillators Part Context

This part belongs to the ILSI ISM91 series of ceramic surface-mount oscillators. The series is characterized by its compact 5x7mm footprint and dual-output capability. It serves as a standard clock source for various digital logic applications, offering a balance between size constraints and performance stability in commercial electronics.

Oscillators Replacement Considerations

Consult official cross-reference lists for direct substitutes within the ISM91 family. Verify that alternative parts maintain identical 4-SMD no-lead dimensions and 5V enable functionality to ensure mechanical and electrical compatibility without redesigning the host circuit.