Datasheet > NVT4857UKAZ

NVT4857UKAZ

更新时间： 2024-11-06 02:52:47

品牌	Logo	应用领域
恩智浦 - NXP		/
页数	文件大小	规格书
24页	643K
描述
SD 3.0-SDR104 compliant integrated auto-direction control memory card voltage level translator with EMI filter and ESD protection

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NVT4857UKAZ 数据手册

NVT4857UK

SD 3.0-SDR104 compliant integrated auto-direction control

memory card voltage level translator with EMI filter and ESD

protection

Rev. 2 — 6 June 2018

Product data sheet

1. General description

The device is an SD 3.0-compliant bidirectional dual voltage level translator with

auto-direction control. It is designed to interface between a memory card operating at

1.8 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 (50 MHz) and Default-Speed (25 MHz) modes. The device has an integrated

voltage selectable low dropout regulator to supply the card-side I/Os, an auto-enable/

disable function connected to the V_SDsupply pin, built-in EMI filters and robust ESD

protections (IEC 61000-4-2, level 4).

2. Features and benefits

 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-make

architecture

 Automatic enable and disable through V_SD

 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 card side

 Level shifting buffers keep ESD stress away from the host (zero-clamping concept)

 20-ball WLCSP; pitch 0.4 mm

3. Applications

 Smart phones

 Tablet PCs

 Mobile handsets

 Digital cameras

 Laptop computers

 SD, MMC or microSD card readers

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