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IRVINE, Calif., and TOKYO, June 28, 2006 — Toshiba America Electronic Components, Inc., (TAEC)* and its parent, Toshiba Corporation, today announced a new microSD card family for use in cellular telephones, with initial capacities of 256 megabyte (MB)1 , 512MB and 1-gigabyte (GB)2.

The microSD card, with approximately one-fourth the cubic measure of a miniSD memory card, is currently the smallest memory card available worldwide. Its primary application is in cellular telephones equipped with music playback and camera functionality. The microSD card is intended for use in handsets equipped with microSD slots to enable transfer and storage of music and digital photos, although it can also be used with an adapter in standard SD memory card slots.

Toshiba announces a new microSD card family
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“Toshiba’s new 256MB, 512MB and 1GB microSD cards provide additional storage for music and photos, as well as a convenient way to transfer digital content in the growing percentage of cell phones equipped with a microSD card slot,” said Brian Kumagai, business development manager, NAND Flash, for TAEC.
microSD Card
Part Number Capacity Schedule
SD-C256 256MB July
SD-C512 512MB July
SD-C01G 1GB August
MicroSD memory card
  • Smallest micro-miniature memory card offered; external size 11mm x 15mm.
  • Targeted applications are cellular telephones with music and camera functionality
  • Adopts CPRM3 advanced copyright protection function
microSD Memory Card
Product Name

microSD Memory Card


Conforms to SD Memory card standard

Power supply voltage 2.7 to 3.6V
Compatibility Conforms to SD Memory Card standard
Size 11 x 15 x 1 mm
Weight: Approximately 0.4g
SD Memory Card

The SD memory card was jointly developed in 1999 by Toshiba Corporation, SanDisk Corporation and Matsushita Electric Industrial Co. Ltd. (best known for its Panasonic brand name products). SD memory cards have been widely adopted worldwide. Toshiba has shipped more than 200 million memory cards4 and is currently the world’s second largest supplier of NAND Flash memory5. The addition of the microSD cards to the Toshiba SD card family addresses the miniaturization requirements of mobile telephones.

The Toshiba SD Memory Card family now includes standard SD memory cards, as well as miniSD, microSD and SDHC cards.  The entire SD card line features cryptographic security, protection of copyrighted data, high-data transfer rate for fast copy/download and high storage capacity.  TAEC currently offers a wide selection of SD Memory Cards with storage capacities of 512MB, 1GB and 2GB in the standard (blue) product family, and a higher performance (white) family of cards in 512MB and 1GB capacities. The Toshiba SD Memory card line-up now includes miniSD in capacities ranging from 512MB to 2GB card, microSD cards in 256MB, 512MB and 1GB capacities, and a 4GB SDHC card.  As the world of SD expands, SD Memory remains the global standard for compact, portable memory.

NAND Flash Background
As a recognized pioneer in flash technology, Toshiba was a principal innovator of NAND- and NOR-type Flash technology in the 1980’s. Toshiba maintains leadership in Flash technology today, with a complete line of NAND memory in densities from 512 megabit6 (Mb) to 16Gb7 to meet various application requirements. NAND Flash has become one of the leading technologies for solid-state storage applications because of its high-speed programming capability, high-speed erasing, and low cost. The sequential nature (serial access) of NAND-based Flash memory provides notable advantages for these block-oriented data storage applications. Toshiba’s NAND Flash memory products are optimized for general solid-state storage, image file storage and audio for applications such as solid-state disk drives, digital cameras, audio appliances, set-top boxes and industrial storage.
*About TAEC
Combining quality and flexibility with design engineering expertise, TAEC brings a breadth of advanced, next-generation technologies to its customers. This broad offering includes memory and flash memory-based storage solutions, a broad range of discrete devices, displays, medical tubes, ASICs, custom SOCs, microprocessors, microcontrollers and wireless components for the computing, wireless, networking, automotive and digital consumer markets.

TAEC is an independent operating company owned by Toshiba America, Inc., a subsidiary of Toshiba Corp. (Toshiba), Japan’s largest semiconductor manufacturer and the world’s fourth largest semiconductor manufacturer. In more than 130 years of operation, Toshiba has recorded numerous firsts and made many valuable contributions to technology and society. For additional company and product information, please visit TAEC’s website at For technical inquiries, please e-mail

1 When used herein in relation to memory density, megabyte and/or MB means 1,024x1,024 = 1,048,576 bytes. Usable capacity may be less. For details, please refer to specifications.
2 When used herein in relation to memory density, gigabyte and/or GB means 1,024x1,024x1,024 = 1,073,741,824 bytes. Usable capacity may be less. For details, please refer to specifications.
3 The copyright protection technology developed by 4C Entity, LLC (Toshiba, Matsushita, Intel and IBM), which is also used on DVD.
4 Based on 2004 shipments including OEM shipments. Source: Techno System Research Co, Ltd.
5 Source: Gartner, Inc. September 19, 2005.
6 When used herein in relation to memory density, megabit and/or Mb means 1,024x1,024 = 1,048,576 bits. Usable capacity may be less. For details, please refer to specifications.
7 When used herein in relation to memory density, gigabit and/or Gb means 1,024x1,024x1,024 = 1,073,741,824 bits. Usable capacity may be less. For details, please refer to specifications.
Information in this press release, including product pricing and specifications, content of services and contact information, is current and believed to be accurate on the date of the announcement, but is subject to change without prior notice. Technical and application information contained here is subject to the most recent applicable Toshiba product specifications. In developing designs, please ensure that Toshiba products are used within specified operating ranges as set forth in the most recent Toshiba product specifications and the information set forth in Toshiba’s “Handling Guide for Semiconductor Devices,” or “Toshiba Semiconductor Reliability Handbook.” This information is available at, or from your TAEC representative.

All trademarks and tradenames held within are the properties of their respective holders.
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