The AM27C512-90PC is a 512K (64K x 8) CMOS EPROM (Erasable Programmable Read-Only Memory) manufactured by Rochester Electronics. The "-90" indicates an access time of 90ns, and the "PC" likely refers to a specific package type, typically a plastic DIP (Dual In-line Package). Rochester Electronics specializes in providing continued support for mature and end-of-life components.

Applications:

  
• Embedded systems.
  
• Microcontroller firmware storage.
  
• Boot code storage.
  
• Programmable logic devices (PLDs).
  
• Industrial control systems.
  
• Legacy systems requiring replacement parts.

Features:

  
• 512K (64K x 8) memory organization.
  
• CMOS technology for low power consumption.
  
• Erasable and reprogrammable (with UV light).
  
• Fast access time (90ns).
  
• Single 5V power supply.
  
• Manufactured by Rochester Electronics, ensuring continued availability.

Benefits:

  
• Non-volatile data storage.
  
• Easy to program and erase (using a UV EPROM eraser).
  
• Low power consumption for battery-powered applications.
  
• Fast access time for quick data retrieval, faster than the AM27C512-150BXA.
  
• Reliable performance in a wide range of operating conditions.
  
• Ensured availability through Rochester Electronics.

The AM27C512-90PC EPROM offers a solution for storing non-volatile data in various electronic systems, with the added benefit of being supported by Rochester Electronics for continued availability. This is particularly important for legacy systems where original manufacturers may no longer produce the component. Its erasable and reprogrammable nature allows for firmware updates and modifications. The CMOS technology ensures low power consumption. The 90ns access time allows for even faster data retrieval compared to slower versions, optimizing system performance. Proper handling and programming procedures are essential. The plastic DIP package (PC) is a common and cost-effective option for through-hole mounting.  The AM27C512-90PC is a reliable memory device suitable for applications requiring non-volatile data storage, especially when sourcing from a trusted provider like Rochester Electronics is critical. Its faster access time provides a performance advantage over slower EPROMs.