The CDP1859CE is a Static Random Access Memory (SRAM) chip manufactured by Rochester Electronics. Rochester Electronics is known for manufacturing end-of-life and obsolete components, ensuring continued availability for legacy systems. This SRAM chip is likely a part of the CDP1800 series microprocessor family and is used for data storage in various applications.

Applications:

• Legacy computer systems using the CDP1800 series microprocessors.
• Industrial control equipment.
• Aerospace and defense applications where legacy components are still in use.
• Scientific instrumentation.
• Any system requiring non-volatile memory with relatively fast access times (relative to the technology of its time).

Features:

• SRAM (Static Random Access Memory) technology.
• Non-volatile data storage (when combined with a battery backup).
• Relatively fast access times compared to other memory types available at the time of its original production.
• Compatible with CDP1800 series microprocessors.
• DIP (Dual In-line Package) for through-hole mounting.

Benefits:

• Ensures continued operation of legacy systems by providing a replacement for obsolete memory chips.
• Maintains system functionality without requiring costly redesigns.
• Provides reliable data storage for critical applications.
• Offers a cost-effective solution for extending the lifespan of older equipment.
• Facilitates the repair and maintenance of existing systems.

The CDP1859CE from Rochester Electronics allows older systems to keep running without total system overhauls. Since Rochester specializes in parts that are no longer manufactured by the original company, this part provides an essential service to industries that still use this older technology. Consult the relevant datasheets to determine capacity and specific electrical characteristics.