27C010-120DI

Overview

The 27C010-120DI is a CMOS UV EPROM manufactured by Rochester Electronics, LLC. It features a memory density of 128K x 8 bits (1 Megabit) organized as 131,072 words of 8 bits each. The device offers a maximum access time of 120 ns and operates asynchronously. It utilizes a standard 28-pin DIP package with ceramic construction. The component supports parallel data output and functions as a single-function memory IC within the specified operating temperature range.

Feature Summary

• Provides non-volatile storage via ultraviolet erasable technology for firmware retention
• Delivers asynchronous read operations with defined timing characteristics
• Utilizes a robust ceramic dual in-line package for mechanical stability

Applications

• Embedded system firmware storage
• Industrial control logic retention
• Legacy hardware maintenance and repair

Procurement Notes

Verify the specific lot date code and traceability documentation upon receipt. Ensure the UV window remains intact to prevent accidental data alteration during handling. Confirm that the package marking matches the exact part number to avoid substitution errors with different speed grades or pinouts.

Selection Notes

Select this component when a 128Kx8 capacity is required with a 120 ns access speed constraint. The ceramic DIP package is suitable for high-reliability environments where thermal cycling resistance is critical. Consider the UV erasure requirement for field reprogrammability needs.

Part Context

This part belongs to the 27C series of CMOS EPROMs, which are widely used in embedded applications requiring user-programmable non-volatile memory. Rochester Electronics provides lifecycle support for these legacy components, ensuring availability for long-term production runs.

Replacement Considerations

Direct replacements include other 27C010 variants from different manufacturers with compatible pinouts and electrical specifications. Verify that substitute parts meet the same 120 ns access time and voltage requirements.