Microchip Technology AT27C256R-90RI

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The AT27C256R-90RI is a high-reliability 256Kbit (32K x 8) EPROM memory IC from Microchip Technology, engineered for industrial and embedded applications requiring non-volatile data storage. With a fast 90ns access time and wide operating temperature range of -40°C to 85°C, this component delivers consistent performance in demanding environments.

Key Features & Benefits:

  • 256Kbit Memory Capacity: 32K x 8 organization provides ample storage for firmware, configuration data, and program code
  • Fast 90ns Access Time: Ensures rapid data retrieval for time-critical applications
  • Industrial Temperature Range: Operates reliably from -40°C to 85°C for automotive, industrial control, and outdoor equipment
  • OTP EPROM Technology: One-time programmable for secure, permanent data storage
  • 5V Operation: Standard 4.5V to 5.5V supply voltage simplifies integration into existing designs
  • Surface Mount 28-SOIC Package: Space-efficient 8.69mm width design for high-density PCB layouts

Applications:

Ideal for automotive ECUs, industrial controllers, medical devices, telecommunications equipment, and any embedded system requiring reliable, long-term program storage.

Authentic Components with Lifecycle Commitment:

As an authorized distributor, HQICKEY guarantees 100% authentic Microchip components with full traceability and long-term supply stability for your production needs.

Technical Specifications:

Related Products & Resources:

Explore our complete range of Memory Semiconductor Devices including EEPROM, Flash, DRAM, and SRAM solutions. Visit our HQICKEY homepage for the full semiconductor catalog, or check our News & Technical Blog for application notes and industry insights.

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 90 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