Nexperia has claimed the industry’s smallest Secure Digital (SD) card level translator IC. Housed in a 16-bump wafer-level chip-scale package, the NXS0506UP measures 1.45 × 1.45 × 0.45 mm, with a 0.35-mm pitch, making it 40 percent smaller than previous 20-bump devices. The device serves as an interface between the memory card, operating at 1.7 V to 3.6 V, and a host with a nominal supply voltage of 1.1 V to 1.95 V.
The SD 3.0-compliant bi-directional, dual-voltage level translator features an integrated auto-direction control, EMI filter, and IEC 61000-4-2 ESD protection. It is designed to operate at clock frequencies of up to 208 MHz and data rates of up to 104 Mbits/s.
Nexperia has been able to reduce the size of the voltage translators due to newer process nodes and “innovative” wafer-level chip-scale package (WLCSP), said Vikram Singh Parihar, senior product manager, Nexperia, in a statement.
Parihar also noted that while the device targets consumer device applications such as smartphones, notebook computers, game pads, cameras, and wireless access points, the NXS0506UP also is finding homes in home medical devices and automotive systems.
The SD card level translator also features integrated pull-up and pull-down resistors to reduce the BOM cost, said Nexperia. The devices provide direct connection to host CPU/SOC ASICs, and are said to be easy to use thanks to swappable DATA and CMD channels that don’t impact functionality.
Click for a larger image. (Source: Nexperia)
The NXS0506UP SD-card level translator supports SD 3.0: SDR104, SDR50, DDR50, SDR25, SDR12, and SD 2.0 High-Speed (50 MHz) and Default-Speed (25 MHz) modes. The device is available now.
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