Product category:
Memory Devices and Modules
News Release from: Hitachi Europe | Subject: High-speed MultiMediaCard series
Edited by the Electronicstalk Editorial
Team on 14 September 2001
Faster access in on the cards
Hitachi has a new high-speed MultiMediaCard series which offers the industry's fastest write speeds, writing approximately three or six times faster than existing Hitachi MultiMediaCards.
Hitachi has a new high-speed MultiMediaCard series which offers the industry's fastest write speeds, writing approximately three or six times faster than existing Hitachi MultiMediaCards The series includes 16, 32, 64 and 128Mbyte products for use as Flash cards in applications such as digital cameras, handheld PCs and portable music players
This article was originally published on Electronicstalk on 16 Feb 2001 at 8.00am (UK)
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The series uses Hitachi's newly developed high-speed Flash memory, together with interleaving (the simultaneous writing of two or more flash memories) and improvements in controller write logic.
These developments enable the 16 and 32Mbyte MultiMediaCards to achieve speeds of 1.0Mbyte/s, which is approximately three times as fast as Hitachi's existing models writing at 350Kbyte/s.
The 64 and 128Mbyte cards are able to achieve write speeds of 2.0Mbyte/s, approximately six times faster than current Hitachi models.
(The write speeds quoted are for the card only and do not include processing time in the player).
Using the 64 or 128Mbyte card, the write time for 500Kbyte of image data in a three million pixel class digital camera is reduced from 1.5 to 0.25s, while the time required to write the data of one music track is reduced from 5 or 6 to just 1min, making it possible to write to individual cards.
The new products are the first in the industry to conform to the System Specification Version 3.1 specifications, as made standard in June of this year by the MMCA (MultiMediaCard Association).
This means that multiblock writes are now possible with interfaces that are widely used in the market, as well as in SPI mode, enabling the series to achieve higher data writing speeds.
Support tools are available from third-party suppliers and can be used when designing systems using the new MultiMediaCards.
These tools include driver, file manager and other software, hardware such as an H8S microcontroller-based development platform, and analytical tools such as a dedicated MultiMediaCard protocol analyser.
Sample shipments will begin in September 2001 for the 16, 32 and 64Mbyte products and in October 2001 for the 128Mbyte MultiMediaCard.
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