Microchip Technology AT27C256R-12PI

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AT27C256R-12PI - High-Reliability 256Kbit Parallel EPROM

The AT27C256R-12PI from Microchip Technology is a premium 256Kbit (32K x 8) parallel EPROM designed for industrial and embedded applications requiring reliable non-volatile memory storage. This one-time programmable (OTP) EPROM delivers consistent performance across extended temperature ranges, making it ideal for mission-critical systems in automotive, industrial control, telecommunications, and aerospace applications.

Key Features & Benefits

  • High-Density Storage: 256Kbit capacity with 32K x 8 memory organization provides ample space for firmware, boot code, and configuration data
  • Fast Access Time: 120ns access time ensures rapid data retrieval for time-sensitive applications
  • Industrial Temperature Range: Operates reliably from -40°C to 85°C (TC), perfect for harsh environmental conditions
  • Standard Parallel Interface: Easy integration with legacy and modern microcontroller systems
  • Through-Hole Package: 28-DIP (0.600", 15.24mm) format simplifies prototyping and ensures robust mechanical connections
  • Wide Supply Voltage: 4.5V to 5.5V operation compatible with standard TTL/CMOS logic levels

Applications

The AT27C256R-12PI is engineered for demanding applications including:

  • Embedded system firmware storage
  • Industrial automation and control systems
  • Automotive electronics and ECU programming
  • Telecommunications equipment
  • Medical device firmware
  • Aerospace and defense systems
  • Legacy system maintenance and upgrades

Why Choose HQICKEY?

At HQICKEY, we specialize in providing authentic, high-quality semiconductor components with full traceability and technical support. Every AT27C256R-12PI chip is sourced directly from authorized distributors, ensuring you receive genuine Microchip Technology products with complete lifecycle support.

Related Products & Resources

Explore our comprehensive selection of Memory ICs including EPROM, EEPROM, Flash, and SRAM solutions for your embedded projects. Visit our homepage to discover thousands of industrial-grade semiconductors, or check our technical blog for application notes, design guides, and industry updates.

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 Through Hole
Package / Case 28-DIP (0.600", 15.24mm)
Supplier Device Package 28-PDIP