Microchip Technology AT27C256R-12RI

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AT27C256R-12RI - High-Reliability 256Kbit EPROM Memory IC

The AT27C256R-12RI from Microchip Technology is a premium 256Kbit (32K x 8) EPROM (Erasable Programmable Read-Only Memory) designed for industrial, automotive, and embedded system applications requiring non-volatile memory storage with exceptional reliability and long-term data retention.

Key Features & Benefits

  • High-Speed Performance: 120ns access time ensures rapid data retrieval for time-critical applications
  • Industrial Temperature Range: Operates reliably from -40°C to 85°C, ideal for harsh environments
  • Flexible Memory Organization: 32K x 8 architecture with parallel interface for versatile system integration
  • OTP Technology: One-Time Programmable EPROM provides secure, permanent code storage
  • Wide Voltage Range: 4.5V to 5.5V supply voltage for compatibility with standard logic systems
  • Space-Efficient Package: 28-SOIC surface mount design (8.69mm width) optimizes PCB real estate

Ideal Applications

Perfect for firmware storage, boot code, lookup tables, embedded controllers, industrial automation, automotive ECUs, medical devices, and any application requiring reliable non-volatile memory with long lifecycle support.

Why Choose HQICKEY?

As a trusted global distributor of authentic semiconductor components, HQICKEY guarantees 100% genuine Microchip Technology products with full traceability, lifecycle commitment, and technical support. Every AT27C256R-12RI is sourced directly from authorized channels to ensure authenticity and reliability for your critical applications.

Related Products & Resources

Explore our comprehensive selection of memory semiconductor solutions including EEPROM, Flash, DRAM, and SRAM devices from leading manufacturers. Visit our homepage to discover our full catalog of authentic semiconductor components, or check our technical blog for industry insights, application notes, and product updates.

Need assistance? Our technical team is ready to help you select the right memory solution for your application. Contact us for volume pricing, custom packaging, or technical support.

Product attributes Property Value
Manufacturer Microchip Technology
Product Series
Packaging Tube |
Memory Type Non-Volatile
Memory Format EPROM
Technology EPROM - OTP
Memory Size 256Kbit
Memory Organization 32K x 8
Memory Interface Parallel
Clock Frequency -
Write Cycle Time - Word, Page -
Access Time 120 ns
Voltage - Supply 4.5V ~ 5.5V
Operating Temperature -40°C ~ 85°C (TC)
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case 28-SOIC (0.342", 8.69mm Width)
Supplier Device Package 28-SOIC