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TI产品 - SN74AVCA406E介绍

SN74AVCA406E - MMC 和 SD 卡电压转换收发器

SN74AVCA406E是TI德州仪器公司的一款应用特定电压转换产品，SN74AVCA406E是MMC 和 SD 卡电压转换收发器，本站介绍了SN74AVCA406E的封装应用图解、特点和优点、功能等，并给出了与SN74AVCA406E相关的TI元器件型号供参考。

SN74AVCA406E - MMC 和 SD 卡电压转换收发器 - 应用特定电压转换 - 电压电平转换 - 德州仪器

产品描述
产品特性

  • Transceiver for Memory Card Interface [MultiMediaCard (MMC) and Secure Digital (SD) Compliant Products]
  • Configurable I/O Switching Levels With Dual-Supply Pins Operating Over Full 1.2-V to 3.6-V Power-Supply Range
  • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
  • ESD Protection
    • ±8-kV Contact Discharge
    • ±15-kV Air-Gap Discharge
  • EMI Filtering
  • Integrated Pullup and Pulldown Resistors on Card-Side I/Os per SD Specification
  • ZQS Package Has 100-k Pullup Resistors Via WP and CD Pins

MicroStar Junior Is a trademark of Texas Instruments.

DESCRIPTION/ORDERING INFORMATION

The SN74AVCA406E is a transceiver for interfacing microprocessors with MultiMediaCards (MMCs) and secure digital (SD) cards.

Two supply-voltage pins allow the A-port and B-port input switching thresholds to be configured separately. The A port is designed to track VCCA, while the B port is designed to track VCCB. VCCA and VCCB can accept any supply voltage from 1.2 V to 3.6 V.

If either VCC is switched off (VCCA = 0 V and/or VCCB = 0 V), all outputs are placed in the high-impedance state to conserve power.

The SN74AVCA406E enables system designers to easily interface low-voltage microprocessors to different memory cards operating at higher voltages.

Memory card standards recommend high ESD protection for devices that connect directly to the external memory card. To meet this need, the SN74AVCA406E incorporates ±15-kV Air-Gap Discharge and ±8-kV Contact Discharge protection on the card side.

The SN74AVCA406E is available in two 0.5-mm-pitch ball grid array (BGA) packages. The 20-ball package has dimensions of 3 mm × 2.5 mm, and the 24-ball package measures 3 mm × 3 mm. Memory cards are widely used in mobile phones, PDAs, digital cameras, personal media players, camcorders, set-top boxes, etc. Low static power consumption and small package size make the SN74AVCA406E an ideal choice for these applications.

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