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|Hitachi Announced "superAND Type
Flash Memory with Built-in Memory Control Function For the First Time In the Industry
| - Easy-to-use compact memory for data
storage for mobile phones and PDA at reasonable price -
Tokyo, April 2, 2002 Hitachi, Ltd. (TSE: 6501) today announced "superAND type flash memory" suitable for portable devices such as mobile phones and PDA. This new AND type flash memory has dramatically improved the easy-to-use feature by incorporating a memory control function in the flash memory for the first time in the industry, and also achieved a compact size and a reasonable price. For the initial release, Hitachi is releasing a total of four types, "HN29V128A (3.3V type)" and "HN29A128A (1.8V type) series of 128M bits (16M bytes). Sample shipment will begin from June 2002 in Japan.
Flash memory defective sectors are normally controlled by an external controller or a hardware/software on the equipment installed. This product incorporates a flash memory defective sector control*1 function within the flash memory for the first time in the industry and, achieving 100% full operation of the memory area after shipment. Also with built-in wear leveling function*2 this product facilitates system design using flash memory. By design optimization, increase of chip size was minimized to only a few percent of Hitachi's conventional monolithic flash memory, enabling a compact size and reasonable price.
Hitachi is aiming at introduction of this "superAND type flash memory" as a de facto standard to be used as embedded data storage memory for portable devices.
Recently, the sizes of memory units installed in portable equipment such as mobile phones and PDA are expanding with the increase of the amount of information due to multifunctionality and increase of distribution of various contents. However, to use the AND type flash memory that is suitable for data storage as embedded memory, complicated problems must be resolved such as designing a new complicated control system for flash memory for defective sector control or use of the memory with a controller for memory control.
Hitachi developed "superAND type flash memory" that achieved improved operability and compact size by incorporating a memory control function in the AND type flash memory while minimizing the chip size increase to a few percent, based on the technology that was developed through controller development of flash card such as CompactFlashTM*3 and MultiMediaCardTM*4.
[About these products]
For the initial release, the "HN29V128A (3.3 V type)" and "HN29A128A (1.8 V type)" Series of 128 M bits (16 M bytes), which were announced as the first release, use 0.18 m process multi-level cell flash memory process, achieving large capacity and compact size features by application of multi-level cell technology*5. The optimization design achieved the memory control function on-chip installation within a compact size. The main features are as follows.
1. Dramatic improvement of operability
2. Compact size and reasonable price
Since the NAND type interface is used, the product can be made compatible to the systems that use the existing NAND type flash memory with small software modifications.
The product uses a 48-pin TSOP type 1 as the package. The product of operation voltage 1.8 V and 16 bits is also equipped with a smaller 72- bump CSP (HN29A128A0ABP-80).
[Development support tools]
As the support tools for designing systems using this flash memory, Hitachi will release a VHDL model as the functional description model, an IBIS model as the I/O operation model, and a reference driver model in C language from June 2002.
increase of capacity, Hitachi will introduce 256M-bit products and
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|Information contained in this news release is current as of the date of the press announcement, but may be subject to change without prior notice.|
|WRITTEN BY Corporate Communications Division