'Industry's fastest' 1 Mbit SPI serial EEPROM

17 October 2007 DSP, Micros & Memory

Microchip has launched what it claims to be the fastest 1 Megabit serial EEPROM devices in the industry with the 25AA1024 and 25LC1024, along with the 25AA128, 25LC128, 25AA512 and 25LC512 128 Kbit and 512 Kbit devices. All of the new devices are specified to operate up to 125°C and offer performance characteristics such as more than 1 million erase/write cycles and 200 year data retention. With byte-level reads and writes, the 10 MHz 25XX128 and 25XX512 devices and the 20 MHz 25XX1024 devices do not require sector erases prior to writes. This provides faster programming times and lower program voltages. The new devices also consume very low operating and standby currents, while supporting full voltage-range operation from 1,8 to 5,5 V. The 25XX512 and 25XX1024 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 highly flexible.

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