Microchip Introduces High-Speed Mode I2C Serial EEPROM with 128-Bit Serial Number

Microchip Introduces High-Speed Mode I2C Serial EEPROM with 128-Bit Serial Number

Microchip Technology has released 24CS512, the first commercially available I2C Serial EEPROM with support for 3.4 Mbit/s data rates. This high-speed I2C EEPROM is 3 to 4 times faster than the existing EEPROMs available in the market. It offers high-speed mode operation, software write-protection and factory programmed serial numbers.

The 24CS512 I2C Serial EEPROM provides 512 Kbits of Serial EEPROM, utilizing an I2C (two-wire) serial interface with high-speed mode capability. The device is organized as 65,536 bytes of 8 bits each (64 Kbytes) and is optimized for use in consumer and industrial applications where reliable nonvolatile memory storage is essential. It allows up to eight devices to share a common I2C (two-wire) bus and is capable of operation across a broad voltage range (1.7V to 5.5V).

This high-speed mode I2C serial EEPROM expands the available options for meeting complex design criteria. The device also contains a Configuration register, which allows the write protection behavior to be configured for legacy hardware write protection or enhanced software write protection which allows the user to protect any of the eight independent 64-Kbit zones.

Product Features

  • 64K x 8 (512 Kbit)
  • 2-Wire Serial Interface, I2C™ Compatible
  • 3.4MHz High Speed Mode Capable
  • Operating voltage 1.7V to 5.5V
  • Pre-programmed 128-bit serial number
  • User-programmable, lockable 128-byte ID page
  • Enhanced Software Write Protection
  • Hardware Write-Protect Pin
  • Built-in Error Correction Code (ECC) Logic
  • Page Write Time 5 ms Max.
  • Standby current 1 uA, max.
  • Cascadable up to Eight Devices
  • Pb-Free and RoHS Compliant
  • Factory Programming Available

The 24CS512 makes managing your data easy with its software write protection, lockable ID page, and pre-programmed 128-bit serial number. Traditional I2C EEPROMs utilize hardware-based write protection that only allows locking or unlocking the entire memory array via an external pin, which severely limits the possible ways to protect data. The 24CS512 retains this legacy feature, but also divides the memory array into 8 different zones and provides the ability to individually write protect any combination of zones via software.

Additionally, each 24CS512 comes pre-programmed from our factory with a globally unique 128-bit serial number that can be used by customers as a unique product identifier. This serial number can eliminate the time-consuming step of performing and ensuring the serialization of a product on and across multiple manufacturing lines.

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Mike is the founder and editor of Electronics-Lab.com, an electronics engineering community/news and project sharing platform. He studied Electronics and Physics and enjoys everything that has moving electrons and fun. His interests lying on solar cells, microcontrollers and switchmode power supplies. Feel free to reach him for feedback, random tips or just to say hello :-)

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