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SN74AVCA406E_08

更新时间： 2024-09-16 06:12:55
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德州仪器 - TI /
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MMC AND SD CARD VOLTAGE-TRANSLATION TRANSCEIVER

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SN74AVCA406E_08 数据手册

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SN74AVCA406E  
MMC AND SD CARD VOLTAGE-TRANSLATION TRANSCEIVER  
www.ti.com  
SCES659C–OCTOBER 2007–REVISED MARCH 2008  
1
FEATURES  
2
•
Transceiver for Memory Card Interface  
[MultiMediaCard (MMC) and Secure Digital  
(SD) Compliant Products]  
•
ESD Protection  
–
–
±8-kV Contact Discharge  
±15-kV Air-Gap Discharge  
•
•
Configurable I/O Switching Levels With  
Dual-Supply Pins Operating Over Full 1.2-V to  
3.6-V Power-Supply Range  
•
•
EMI Filtering  
Integrated Pullup and Pulldown Resistors on  
Card-Side I/Os per SD Specification  
Latch-Up Performance Exceeds 100 mA Per  
JESD 78, Class II  
•
ZQS Package Has 100-kΩ Pullup Resistors Via  
WP and CD Pins  
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.  
ORDERING INFORMATION  
TA  
PACKAGE(1)(2)  
ORDERABLE PART NUMBER  
Reel of 2500 SN74AVCA406EZXYR  
TOP-SIDE MARKING  
UFBGA – ZXY (Pb-Free)  
WM406E  
–40°C to 85°C  
MicroStar Junior™ BGA – ZQS  
(Pb-Free)  
Reel of 2500 SN74AVCA406EZQSR  
WM406E  
(1) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.  
(2) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI  
website at www.ti.com.  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
2
MicroStar Junior is a trademark of Texas Instruments.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2007–2008, Texas Instruments Incorporated  
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