NVT4857UK数据手册恩XP中文资料规格书

描述 Description

The device is an SD 3.0-compliant bidirectional dual voltage level translator withauto-direction control. It is designed to interface between a memory card operating at1.8 V or 3.0 V signal levels and a host with a nominal supply voltage of 1.2 V to 1.8 V.The device supports SD 3.0 SDR104, SDR50, DDR50, SDR25, SDR12 and SD 2.0 High-Speed (50MHz) and Default-Speed (25 MHz) modes. The device has an integrated voltage selectablelow dropout regulator to supply the card-side I/Os, an auto-enable/ disable functionconnected to the VSD supply pin, built-in EMI filters and robust ESDprotections (IEC 61000-4-2, level 4).

特性 Features

Supports up to 208 MHz clock rate
SD 3.0 specification-compliant voltage translation to support SDR104, SDR50,DDR50, SDR25, SDR12, High-Speed and Default-Speed modes
1.2 V to 1.8 V host side interface voltage support
Feedback channel for clock synchronization
100 mA Low dropout voltage regulator to supply the card-side I/Os
Low power consumption by push-pull output stage with break-before-makearchitecture
Automatic enable and disable through VSD
Integrated pull-up and pull-down resistors: no external resistors required
Integrated EMI filters suppress higher harmonics of digital I/Os
Integrated 8 kV ESD protection according to IEC 61000-4-2, level 4 on cardside
Level shifting buffers keep ESD stress away from the host (zero-clampingconcept)
20-ball WLCSP; pitch 0.4 mm

应用 Application

Smart phones
Mobile handsets
Digital cameras
Tablet PCs
Laptop computers
SD, MMC or microSD card readers