27S181PC-G

Overview

The 27S181PC-G is a bipolar programmable read-only memory (PROM) manufactured by Rochester Electronics, LLC. It features an organization of 1024 words by 8 bits, providing a total storage capacity of 8 kilobits. The device utilizes a parallel interface for data access and is housed in a standard DIP package configuration. As a component from Rochester Electronics, it represents a sustained production version of legacy semiconductor technology, ensuring availability for systems requiring this specific memory architecture.

Feature Summary

• Provides non-volatile data storage using bipolar PROM technology
• Supports parallel data access for system integration
• Manufactured under license to sustain legacy component supply

Applications

• Embedded systems requiring fixed program storage
• Industrial control equipment with legacy memory requirements
• Replacement for obsolete microcomputer memory modules

Procurement Notes

Verify the specific datasheet revision and pinout compatibility with your existing circuit design before procurement. Confirm that the bipolar voltage levels match your system logic requirements. Ensure the package type aligns with your board layout constraints. Contact the supplier directly for current manufacturing status and lot traceability information to guarantee component authenticity and quality standards.

Selection Notes

Select this component when a legacy 1024x8 bipolar PROM is required for system maintenance or reproduction. It serves as a direct functional replacement for original manufacturer parts in established designs. Consider the power consumption characteristics typical of bipolar technologies during selection. Evaluate the physical package dimensions to ensure mechanical fit within the target enclosure or assembly.

Part Context

Rochester Electronics specializes in sustaining production of end-of-life semiconductors. This part is part of their extensive inventory of licensed components, designed to support industries that cannot transition to newer technologies immediately. The company maintains wafer and die banks to continue manufacturing these devices long after original production ceases.

Replacement Considerations

Cross-reference with original AMD or Intel AM27S181 specifications to verify electrical and mechanical compatibility. Ensure substitute sources provide identical pinouts and timing characteristics. Validate that any alternative sources maintain the same bipolar technology profile.