Microchip Technology AT27C256R-55TC

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AT27C256R-55TC - High-Performance 256Kbit EPROM Memory IC

The AT27C256R-55TC from Microchip Technology is a high-reliability 256Kbit (32K x 8) EPROM (Erasable Programmable Read-Only Memory) designed for industrial and embedded applications requiring non-volatile data storage. This one-time programmable (OTP) memory IC delivers fast 55ns access time with a parallel interface, making it ideal for firmware storage, code execution, and data retention in mission-critical systems.

Key Features & Benefits

  • 256Kbit Memory Capacity: 32K x 8 organization provides ample storage for embedded firmware and configuration data
  • Fast 55ns Access Time: Ensures rapid data retrieval for time-sensitive applications
  • 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 (TC grade) for demanding environments
  • Surface Mount Package: Compact 28-TSOP (11.80mm width) footprint optimizes PCB space utilization
  • EPROM-OTP Technology: One-time programmable architecture ensures data integrity and security

Applications

The AT27C256R-55TC is perfectly suited for:

  • Embedded system firmware storage and boot code
  • Industrial control systems and automation equipment
  • Automotive electronics and instrumentation
  • Legacy system upgrades and replacements
  • Configuration data storage for microcontrollers
  • Code shadowing and program execution

Why Choose HQICKEY for Your Memory Components?

At HQICKEY, we specialize in providing authentic, high-reliability semiconductor components for industrial, aerospace, and automotive applications. Our extensive memory semiconductor catalog includes EPROM, EEPROM, Flash, DRAM, and SRAM solutions from leading manufacturers like Microchip Technology.

Every AT27C256R-55TC we supply is sourced directly from authorized distributors, ensuring 100% authenticity, full traceability, and manufacturer warranty coverage. Our technical team provides comprehensive lifecycle support, including obsolescence management, cross-reference assistance, and application guidance.

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Order your AT27C256R-55TC today and experience HQICKEY's commitment to quality, authenticity, and exceptional customer service.

Product attributes Property Value
Manufacturer Microchip Technology
Product Series
Packaging Tray |
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 55 ns
Voltage - Supply 4.5V ~ 5.5V
Operating Temperature 0°C ~ 70°C (TC)
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case 28-TSSOP (0.465", 11.80mm Width)
Supplier Device Package 28-TSOP