SN74AVCA406E_08 Datasheet, PDF (1/20 Pages) Texas Instruments – MMC AND SD CARD VOLTAGE-TRANSLATION TRANSCEIVER

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SN74AVCA406E
MMC AND SD CARD VOLTAGE-TRANSLATION TRANSCEIVER
SCES659C – OCTOBER 2007 – REVISED MARCH 2008
FEATURES
1
•2 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-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 V_CCA, while the B port is designed to track V_CCB. V_CCA and V_CCB can accept any
supply voltage from 1.2 V to 3.6 V.
If either V_CC is switched off (V_CCA = 0 V and/or V_CCB = 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
T_A
–40°C to 85°C
PACKAGE ^{(1) (2)}
UFBGA – ZXY (Pb-Free)
MicroStar Junior™ BGA – ZQS
(Pb-Free)
ORDERABLE PART NUMBER
Reel of 2500 SN74AVCA406EZXYR
Reel of 2500 SN74AVCA406EZQSR
TOP-SIDE MARKING
WM406E
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.
MicroStar Junior is a trademark of Texas Instruments.
2
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