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Level translator supports Secure Digital 3.0

Posted: 01 Feb 2012 ?? ?Print Version ?Bookmark and Share

Keywords:level translator? portable device? CMOS? memory card?

STMicroelectronics N.V. (ST) has announced what it touts as the industry's first voltage-level translator compliant with Secure Digital (SD) 3.0 standard. According to the company, the increase in storage capacity and access speed of SD 3.0, together with the low static power consumption and small package size of the ST6G3244, makes it suitable for interfacing application processors or digital basebands to SD memory cards in consumer devices such as mobile phones, portable media players, tablets, digital cameras or personal navigation devices.

The SD 3.0 specification provides up to 2TB of storage capacity and accelerates SD interface read/write speeds to 50MB/s at 50MHz Double Data Rate. ST's voltage-level translator is the first device on the market to support the standard, giving system designers a head start in developing portable applications with increased storage space and faster access to multimedia content, including music, videos and pictures, claimed ST.

The ST6G3244 couples high-speed operation with very low power dissipation, supported with the Power Down mode, noted the company. Data integrity is secured through balanced propagation delays and electromagnetic-interference filters and signal and pictures. The device incorporates 15kV air-gap electrostatic discharge protection on the card side.

ST's selectable-supply (1.8V or 2.9V), 6bit bi-directional CMOS-level translator for SD, mini-SD and micro-SD memory cards is offered in a BGA25 package, reducing board area by more than 50 percent against current-generation devices (ST6G3238), said ST. It is backward pin-to-pin compatible with most existing SD 2.0 products, giving customers the capability to 'hot swap' and protect their investment in application development. The ST6G3244 is available in volumes, with unit pricing at $0.84 in quantities of 1,000 pieces.





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