PermSRAM™ is a versatile nonvolatile memory macro available on foundry standard CMOS platform covering process node of 180nm to 22nm and beyond. The series features wide varieties of nonvolatile memory functions 1) one-time programmable ROM and pseudo multi-time PROM incorporated with multi-page configuration, 2) wide memory size of 64bit to 512Kbit, 3) non-rewritable hardware safety lock for security code storage. The series has the actual performance of stable yield and highest reliability.


  • Security Code Storage
  • Program Storage
  • Analog Trimming
  • Gamma Correction
  • Memory Repair
  • Feature Selection
  • Patch Code
  • Chip ID
  • DRM
  • HDMI Decode


  • Smallest Si area
  • Tamper-resident by invisible charge trap memory mechanism
  • Non-rewritable hardware safety lock
  • No charge pump required in read operation
  • Built-in-self-test circuit supports stress-free test environments
  • All bits fully testable with conventional test equipments
  • Automotive grade data retention over 150 deg C

IP Block Diagram

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