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Memory Technology

High Endurance Serial EEPROM and Serial SRAM Memory

Since data storage is a critical factor, a reliable memory such as a serial EEPROM has been the industry preference for many years. The 24xxx and 25xxx serial EEPROM devices support an I²C and SPI serial interface respectively. Read more about memory.

Flash Memory

For applications with higher density memory requirements, Microchip’s NOR flash memory products with patented and proprietary SuperFlash® nonvolatile flash memory cells are ideal solution. SuperFlash memory uses a split-gate cell design and a thick-oxide tunneling injector to offer significant cost and reliability benefits to customers. Superior reliability of 100,000 cycles endurance and greater than 100 years of data retention ensures robust and reliable designs for meter applications. Small Sector Architecture enables a system to choose the right amount of data/code to be erased to update contents allowing seamless partition of program and data code occupying less memory space.

Microchip offers multiple interfaces to satisfy different design needs, Parallel Flash offers asynchronous random access through dedicated address bus. SQI™ flash memory reads and writes through a 4-bit multiplexed synchronous serial communication interface enables true low-pin count, high-bandwidth code execute-in-place applications. SPI Flash serial interface is a cost effective option to store the boot loader code, making it available for download into shadow memory upon power-up.

Memory Cell Structure

  • No over-erase problem
  • Low total power consumption during erase
  • Low leakage current during erase
  • Small sector architecture
  • Faster re-write times
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