Datasheet

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DGG PACKAGE
(TOP VIEW)
1
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9
10
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12
13
14
15
16
17
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19
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48
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36
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31
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29
28
27
26
25
3DIR
4DIR
1A
2A
3A
V
CCA
GND
10A1
10A2
9A
4A
9DIR
56DIR
78DIR
6A
7A
8A
V
CCA
GND
5A
12A
11A
13A
CS1
2DIR
1DIR
MODE1
MODE0
10B1
GND
V
CCB0
9B1
1B
2B
3B
4B
12B
11B
9B2
10B2
14B
GND
V
CCB1
5B
6B
7B
8B
CS0
Device Operation
SN74AVCA406
MMC, SD CARD, Memory Stick, SmartMedia, AND xD-Picture Card
± 15-kV ESD-PROTECTED VOLTAGE-TRANSLATION TRANSCEIVER
SCES615H – OCTOBER 2004 – REVISED JANUARY 2007
The A port is designed to track V
CCA
. V
CCA
accepts any supply voltage from 1.4 V to 3.6 V. The B port is
designed to track V
CCB0
and V
CCB1
. V
CCB0
and V
CCB1
can accept any supply voltage from 1.4 V to 3.6 V;
however, V
CCB0
, V
CCB1
, or both must be greater than or equal to V
CCA
during normal operation. If V
CCB0
and
V
CCB1
are both at GND, the A port is in the high-impedance state. The control pins are supplied by V
CCA
. The
microprocessor is connected to the A port, and the memory card(s) are connected to the B port. The device can
be configured using MODE0, MODE1, CS0, and CS1 pins to interface with 1-bit, 4-bit, or 8-bit memory cards.
Outputs 12A and 14B are push-pull and open drain (OD), respectively, except for NAND flash (XD) mode, where
they are open drain and push-pull, respectively.
Table 1. Interface With Different Memory Cards
MODE0 MODE1 MEMORY-CARD INTERFACE
0 X SD/SDIO/MMC/Memory Stick/Memory Stick PRO
1 0 8-bit MMC/4-bit + GPIO translation
1 1 SmartMedia/xD-Picture Card
3
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