Microchip Technology AT27C256R-90PC

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AT27C256R-90PC - High-Performance 256Kbit EPROM Memory IC

The AT27C256R-90PC is a reliable 256Kbit EPROM (Erasable Programmable Read-Only Memory) manufactured by Microchip Technology. Featuring a 32K x 8 memory organization and 90ns access time, this through-hole memory IC is designed for embedded electronics, industrial control systems, and legacy system maintenance applications.

Key Features & Benefits

  • Fast Access Time: 90ns access time ensures quick data retrieval for time-sensitive applications
  • Reliable Non-Volatile Storage: EPROM-OTP technology provides secure, permanent data storage
  • Standard 28-DIP Package: Easy integration with existing PCB designs and prototyping boards
  • Wide Operating Voltage: 4.5V to 5.5V supply voltage range for flexible system integration
  • Industrial Temperature Range: Operates reliably from 0°C to 70°C
  • Parallel Interface: Simple, straightforward memory access without complex protocols

Applications

This EPROM memory IC is ideal for firmware storage, bootloaders, configuration data, lookup tables, and embedded system programming in aerospace, automotive, industrial automation, and consumer electronics.

Related Products & Resources

Explore our complete range of memory semiconductor solutions including EEPROM, Flash, DRAM, and SRAM devices. Visit HQICKEY for high-reliability electronic components. Stay updated with the latest industry news and technical insights on our blog.

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 0°C ~ 70°C (TC)
Grade -
Qualification -
Mounting Type Through Hole
Package / Case 28-DIP (0.600", 15.24mm)
Supplier Device Package 28-PDIP