NS1081C is a high-performance USB 3.0 Card Reader Controller. On one side, it connects with USB interface and is compatible with USB SuperSpeed (5Gbps), Hi-Speed (480Mbps), and Full-Speed (12Mbps). On the other side, it interfaces with various flash memory cards, such as Secure Digital (SD), SDHC, SDXC, miniSD, microSD (T-Flash), MultiMediaCard (MMC), RS-MMC, MMCmicro, or MMCmobile. It also supports high density memory cards with capacity up to 2TB, and high speed memory cards including SD3.0 UHS-I cards.
Self-developed high-performance USB 3.0 transceivers with low-power and low-jitter. The transceivers have built-in test capabilities for guaranteed functions and performance.
On-chip high-efficiency regulators, including 5V to 1.2V DC-DC, 5V to 3.3V LDO, and 5V to 3.3V/1.8V LDO.
Compliant with USB bus-powered and self-powered power consumption requirements. Consumed less than 2.5mA in USB 3.0 and USB 2.0 suspend mode.
Support USB 3.0 Specification Revision 1.0.
USB 3.0 adaptive receiver equalization for better and reliable Super-Speed operation.
Support USB Specification Revision 2.0.
Support USB Mass Storage Class, Bulk-Only Transport Specification.
Support USB 3.0 U0/U1/U2/U3 (P0/P1/P2/P3) and USB 2.0 L0/L1/L2 power saving modes.
Support Secure Digital v1.0/v1.1/v2.0 SDHC/SDXC (Capacity up to 2TB).
Support Secure Digital v3.0 UHS-I (Ultra High Speed)：SDR12/SDR25/SDR50/DDR50/SDR104.
Support MultiMediaCard (MMC) specification v4.1/v4.2 x1/x4 bit data bus and DDR x4 bit data transfer mode.
Built-in variable sampling clock generator to determine correct sampling point for SD UHS card SDR104 mode.
Support user data locking, providing a privacy protection solution.
Support SD Lock/Unlock Function.
Support SPI and I2C interface for firmware and Vendor VID/PID customization.
External Serial Flash memory interface.
Support ISP（In System Programming）for firmware upgrade to external SPI Flash or I2C EEPROM via USB port.
On-chip power MOSFETs for supplying flash media card power.
Support Win8/ Win7/Vista/XP/2000/Me, Linux and Mac OS 9.x/10.x.
Support two dedicated LED controllers.