Microchip Technology AT27BV256-15TC

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AT27BV256-15TC - 256Kbit EPROM OTP Memory IC

The AT27BV256-15TC from Microchip Technology is a high-reliability 256Kbit (32K x 8) EPROM One-Time Programmable (OTP) memory device designed for embedded systems, industrial automation, and aerospace applications. This parallel interface memory IC features a fast 150ns access time and operates across dual voltage ranges (2.7V-3.6V and 4.5V-5.5V), making it ideal for legacy system upgrades and new designs requiring non-volatile data storage.

Key Features:

  • 256Kbit memory capacity with 32K x 8 organization
  • Fast 150ns access time for responsive data retrieval
  • Dual voltage support: 2.7V-3.6V and 4.5V-5.5V
  • Industrial temperature range: 0°C to 70°C (TC grade)
  • Space-saving 28-TSOP surface mount package
  • Parallel interface for straightforward integration
  • EPROM-OTP technology ensures permanent data retention

Applications: Firmware storage, configuration data, calibration tables, boot code, industrial controllers, automotive ECUs, medical devices, and aerospace systems requiring long-term data integrity.


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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 150 ns
Voltage - Supply 2.7V ~ 3.6V, 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