Tokyo, June 12, 2000 -- Fujitsu Limited today announced that it will commence sales of two new flash memory devices jointly developed with
Advanced Micro Devices (AMD) of the U.S., The new 64Mbit flash
memory products (MBM29DL640E and MBM29DD640E) offer dual-operation
for simultaneous performance of read/write/erase functions and
FlexBank (TM) Architecture, which allows flexible allocation of data
or programs to banks.
Demand is increasing for dual operation flash memory products for
cellular telephones and mobile information terminals, where high-
speed processing and more frequent rewriting are required.
In contrast to conventional memory products, which have four fixed
banks for data and programs, the new products feature FlexBank
Architecture - an industry first- that can flexibly allocate
data and programs to banks according to system requirements. Also,
small sector blocks(*1) (8 Kbyte x 8) are available in two banks
to house system start-up programs. Customers are able to select
where to house the start-up program based on thier system needs,
allowing efficient use of all remaining area as memory space.
Additional features include a Hi-ROM(*2) function to prevent illegal
copying and an accelerator function, which realizes faster write
time.
Fujitsu already offers 4, 8, 16 and 32Mbit dual operation flash
memory products. The company intends to move ahead rapidly with
development of flash memory devices with higher capacity and reduced
power consumption, as well as the flexibility to match our clients'
varied system requirements.
Sample pricing
64Mbit dual operation flash memory: 5,000 yen (TSOP) (*3)
(MBM29DL640E: 3.0V / MBM29DD640E: 2.5V)
Availability
Samples: June 2000
Volume production: September 2000
Sales target
1 million units per month
Specifications
- Process technology: 0.23 micron CMOS process
- Cell structure: two-layer polysilicon structure NOR type memory cell
- Output: 4Mword x 16bit/ 8Mbyte x 8bit (64Mbit)
- FlexBank Architecture
Bank size
| BankA | 8Mbit |
| BankB | 24Mbit |
| BankC | 24Mbit |
| BankD | 8Mbit |
Security
Hi-ROM function to prevent illegal copies. Hi-ROM area: 256byte
[WP/ACC functions]
| WP: | allows protection of outermost 2x8Kbytes
on both of Bank A and Bank D |
| ACC: | reduces write time when external high voltage is applied |
| (WP has "upperbar" above the letters)
|
Interface
Common Flash Memory Interface (CFI)
[Access Time]
| [MBM29DL640E] | [MBM29DD640E] |
| Address access: | 80/90/120 nanosecond (max.) | 100/120 nanosecond (max.) |
| CE access: | 80/90/120 nanosecond (max.) | 100/120 nanosecond (max.) |
| OE access: | 30/35/50 nanosecond (max.) | 35/50 nanosecond (max.) |
| (CE,OE has "upperbar" above the letters) |
Single power operation
MBM29DL640E : 2.7V-3.6V (3.0V-3.6V for 80ns products)
MBM29DD640E : 2.3V-2.5V
Low power consumption
| Automatic sleep mode |
| stand-by mode : | 1 micro ampere (standard) |
| read mode : | 18 milli-ampere (max.) word mode f=5MHz
16 milli-ampere (max.) byte mode f=5MHz |
| write/erase mode: | 35 milli ampere (max.) |
| Number of erase/write operation: | 100,000 (min.) |
| Packaging: | standard 48 pin plastic TSOP package
standard 63 ball/ FBGA(*4) package |
Explanation of terminology
| *1 | small sector blocks - The sector where start-up program information for CPU is housed |
| *2 | Hi-ROM function - (Hidden Read Only Memory) The sector where the security code and other specific information is input. |
| *3 | TSOP - (Thin Small Outline Package) A thin type of surface mount packaging |
| *4 | FBGA (Fine-pitch Ball Grid Array) - A surface mount packaging with space of less than 1.0mm between ball terminals |
** FlexBank (TM) is a trademark of Fujitsu Limited in Japan. All other company/product names mentioned may be trademarks or registered trademarks of their respective holders and are used for identification purpose only.
About Fujitsu Limited
Fujitsu Limited (TSE: 6702) is a leading provider of Internet-based
information technology solutions for the global marketplace.
Comprising over 500 group companies and affiliates worldwide --
including ICL, Amdahl and DMR Consulting -- it had consolidated
revenues of 5.26 trillion yen ($49.6 billion) in the fiscal year ended
March 31, 2000. Fujitsu's pace-setting technologies, world-class
computing and telecommunications platforms, and global corps of over
60,000 systems and services experts make it uniquely positioned to
harness the power of the Internet to help its customers succeed.
Altogether, the Fujitsu Group has 188,000 employees and operations
in over 100 countries.
Home page: http://www.fujitsu.com/