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Microchip unveils fastest 1Mbit serial EEPROM devices

Posted: 26 Sep 2007     Print Version  Bookmark and Share

Keywords:1Mbit serial EEPROM  extended temperature range  flash 

1Mbit serial EEPROM

Microchip Technology Inc. has introduced the 25AA1024 and 25LC1024, said to be the fastest 1Mbit serial EEPROM devices in the industry. The chips were introduced along with the 25AA128, 25LC128, 25AA512 and 25LC512 128Kbit and 512Kbit devices. The new devices are specified to operate over an extended temperature range of up to 125°C and provide high performance including over 1 million erase/write cycles and 200-year data retention.

With byte-level reads and writes, the 10MHz 25XX128 and 25XX512 devices and the 20MHz 25XX1024 devices do not require sector erases prior to writes. This provides faster programming times and lower program voltages. The devices also consume very low operating and standby currents, while supporting full voltage-range operation from 1.8-5.5V.

The 25XX512 and 25XX1024 are claimed to be the industry's only 512Kbit and 1Mbit SPI serial EEPROMs specified to operate up to 125°C. The two devices also feature a "deep power-down mode," which further reduces standby currents when the EEPROM device is not in use. For applications that require flash-like operation, the 25XX1024 and 25XX512 devices offer sector erase, chip erase and read identification with four sectors per chip. The devices' ability to respond to both serial EEPROM and flash commands makes them the most flexible devices in their class.

Microchip's SEEVAL 32 Serial EEPROM Designer's Kit (part number DV243002) enables quick and easy development of robust, reliable serial EEPROM-based applications, and includes support for the new 25XX128, 25XX512 and 25XX1024 devices. Available today, the kit includes the SEEVAL 32 Development Board and interface software, Microchip's Total Endurance lifetime modelling and analysis software, a serial cable, power supply, sample pack and documentation.

The 25XX128 is available in 8-pin PDIP, TSSOP, SOIC, SOIJ, 5mm x 6mm DFN and Rotated SOIC packages. The 25XX512 is available in 8-pin PDIP, SOIC, SOIJ and 5mm x 6mm DFN packages and the 25XX1024 is offered in 8-pin PDIP, SOIJ and 5mm x 6mm DFN packages.

Samples of all the new devices are available today.

- Henri Arnold
EE Times Europe

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