A product Line of Pb Diodes Incorporated Lead-free Green PI4ULS3V4857 6-Bit Bi-directional Level Shifter for SD 3.0-SDR104 Compliant Memory Card Application Features Description Supports up to 208 MHz clock rate e Th device is an SD 3.0-compliant bidirectional dual voltage level translator without direction pin control. It can translate the mem- Supports 1.2V to 1.8V host side interface voltage ory card voltage to 1.8V or 3.0V signal levels from 1.2V to 1.8V of Voltage translation supports SDR104, SDR50, DDR50, SDR25, host side and supports SD 3.0 SDR104(208Mhz), SDR50(100Mhz), SDR12, High-Speed and Default-Speed modes and comply SD DDR50(50Mhz), SDR25(50Mhz), SDR12(25Mhz) and SD 2.0 3.0 specicfi ation High-Speed (50 MHz) and Default-Speed (25 MHz) modes. Automatic enable and disable through VSD supply pin To supply the memory card I/Os, the device has an integrated Built-in 100mA Low dropout voltage regulator to supply the voltage selectable regulator and an auto-enable/disable function voltage of memory card I/Os that connects to the VSD supply pin. The device also has built-in Integrated pull-up and pull-down resistors EMI filters and ESD protections. Integrated EMI filters for digital I/Os On card side, supports 8 kV ESD protection(IEC 61000-4-2, level 4) Applications Level shifting buffers keep ESD stress away from the host Smart phones Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Mobile handsets Halogen- and Antimony-Free. Green Device (Note 3) Digital cameras For automotive applications requiring specic cfi hange control Tablet PCs (i.e. parts qualified to AEC-Q100/101/200, PPAP capable, Laptop computers and manufactured in IATF 16949 certified facilities), please SD, MMC or microSD card readers contact us or your local Diodes representative. A product Line of Diodes Incorporated PI4ULS3V4857 Block Diagram PMU or DC/DC or VSUPPLY VSD LDO 3.0V 400/800mA VSD VCCB I/O Stage/LDO CEXT VCCA CLKA CLK FB DAT1B DAT0B CMDA GND Host/ Level Baseband Translator CLKB Interface Logic SD Card DAT0A VSD CMDB DAT1A DAT3B DAT2A DAT2B DAT3A CD SEL Basic push-pull driver implementation www.diodes.com August 2020 PI4ULS3V4857 Diodes Incorporated Document Number DS42310 Rev 2-2 2