SN74AVCA406E_08 Datasheet, PDF (2/20 Pages) Texas Instruments – MMC AND SD CARD VOLTAGE-TRANSLATION TRANSCEIVER

SN74AVCA406E
MMC AND SD CARD VOLTAGE-TRANSLATION TRANSCEIVER
SCES659C – OCTOBER 2007 – REVISED MARCH 2008
ZXY PACKAGE
(TOP VIEW)
ABCD
5
5
4
4
3
3
2
2
1
1
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TERMINAL ASSIGNMENTS
(20-Ball ZXY Package)
A
V_CCA
DAT3A
CLKA
DAT1A
CLK-f
B
CMD-dir
DAT2A
GND
DAT0A
CMDA
C
DAT0-dir
DAT2B
GND
CMDB
DAT123-dir
D
V_CCB
DAT3B
CLKB
DAT0B
DAT1B
ZQS PACKAGE
(TOP VIEW)
1234 5
A
B
C
D
E
TERMINAL ASSIGNMENTS
(24-Ball ZQS Package)
1
2
3
4
5
A DAT2A CMD-dir DAT0-dir
RSV DAT2B
B DAT3A
C CLKA
RSV
V_CCA
GND
V_CCB
GND
DAT3B
CLKB
D DAT0A CMDA
CD
CMDB DAT0B
E DAT1A CLK-f DAT123-dir WP DAT1B
V_CCA
REFERENCE DESIGN
VCCB
V_CCA
V_CCB
U1A
VDDA
DAT0-dir
DAT0
DAT123-dir
DAT1
DAT2
DAT3
CMD-dir
CMD
CLK
CLKin
GND
WP
CD
Processor
SD/SDIO MMC
C3
0.1 μA
C4
0.1 μA
U2
A5
C5
VCCA
VCCB ^D5
B2
DAT0-dir
D2 DAT0B
C1
DAT0A
DAT0B
A2
B4
A4
B5
DAT123-dir
DAT1A
DAT2A
DAT3A
DAT1B ^{D1 DAT1B}
DAT2B ^{C4 DAT2B}
DAT3B ^{D4 DAT3B}
B1
CMD-dir
A3
CMDA
A1
CLKA
CMDB
CLKB
C2
D3
CMDB
CLKB
C3
CLK-f
GND
B3
GND
SN74AVCA406EZXYR
WP
CD
100 kΩ 100 kΩ
C1
0.1 μA
CLKB
DAT0B
DAT1B
CD
WP
DAT2B
DAT3B
CMDB
J1
0 _DAT2
1
2
DAT3
CMD
3
4
VSS1
VDD
5 _CLK
6 _VSS2
7 _DAT0
8 _DAT1
9
10
WP/CD (Physical)
CD (Physical)
11
12
GND
GND
13 _{WP (Physical)}
54794-0978
SD/SDIO Card
Connector
Figure 1. Interfacing With SD/SDIO Card
2
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