New from STMicroelectronics is a voltage-level translator compliant with the latest SD (Secure Digital) 3.0 standard.
The increase in storage capacity and access speed of SD 3.0, together with the low static power consumption and small package size of ST’s new level translator, make it a suitable choice for interfacing application processors or digital basebands to SD memory cards. The SD 3.0 specification provides up to 2 Terabytes of storage capacity and accelerates SD interface read/write speeds to 50 Megabytes per second, at 50 MHz double data rate.
The ST6G3244 couples high-speed operation with very low power dissipation, supported with a power-down mode. Data integrity is secured through balanced propagation delays and electromagnetic interference filters and signal conditioning. Recommended for portable devices that connect directly to the external memory card, the device incorporates 15 kV air-gap electrostatic discharge protection on the card side.
ST’s selectable-supply (1,8 V or 2,9 V), 6-bit bidirectional CMOS-level translator for SD, mini-SD and micro-SD memory cards is offered in a space-saving BGA25 package. It is backward pin-to-pin compatible with most existing SD 2.0 products, so customers can easily ‘hot swap’ and protect their investment in application development.
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