Microchip Technology AT27C4096-70JC

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The AT27C4096-70JC is a high-performance 4Mbit EPROM (Erasable Programmable Read-Only Memory) from Microchip Technology, engineered for mission-critical embedded systems requiring non-volatile memory storage. This OTP (One-Time Programmable) EPROM features a 256K x 16 memory organization with a parallel interface, making it ideal for applications in aerospace, automotive, industrial control, medical devices, and telecommunications.

With a fast 70ns access time and operating voltage range of 4.5V to 5.5V, the AT27C4096-70JC delivers reliable performance across a wide temperature range (0°C to 70°C). The surface-mount 44-PLCC (16.6x16.6mm) package ensures compact integration into space-constrained designs while maintaining robust connectivity through J-lead contacts.

Key Features:

  • 4Mbit (512KB) non-volatile EPROM storage
  • 256K x 16-bit memory organization
  • Fast 70ns access time for rapid data retrieval
  • Parallel interface for straightforward integration
  • Wide operating voltage: 4.5V to 5.5V
  • Industrial temperature range: 0°C to 70°C
  • Compact 44-PLCC surface-mount package
  • OTP technology for secure, permanent programming

Applications:

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

Technical Specifications:

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Product attributes Property Value
Manufacturer Microchip Technology
Product Series
Packaging Tube |
Memory Type Non-Volatile
Memory Format EPROM
Technology EPROM - OTP
Memory Size 4Mbit
Memory Organization 256K x 16
Memory Interface Parallel
Clock Frequency -
Write Cycle Time - Word, Page -
Access Time 70 ns
Voltage - Supply 4.5V ~ 5.5V
Operating Temperature 0°C ~ 70°C (TC)
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case 44-LCC (J-Lead)
Supplier Device Package 44-PLCC (16.6x16.6)