Flash memory with built-in memory control

3 July 2002 DSP, Micros & Memory

Hitachi's superAND type flash 128 Mbit memory provides a 100% fully operative memory area, and is claimed to be the first in the industry to incorporate a memory control function. Offers improved operability, very low standby current and compact size, making it suitable for portable devices. Hitachi offers two series: the x8 and x16 bit (or '8 and 16 bit bus width type') HN29V128A series operating at 3,3 V and the x16 bit (or '16 bit bus width type') HN29A128A series operating at 1,8 V. Conventional AND type flash contains a small percentage of defective sectors. 'superAND' incorporates a Defective Sector Control function which detects abnormalities in the flash memory and replaces defective sectors with reserved sectors, thus achieving a 100% fully operative memory area. The new memory also has a built-in wear levelling function, and supports a Power On Read function.

Avnet Kopp, 011 809 6100

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