Datasheet

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SN74AVCA406
MMC, SD CARD, Memory Stick, SmartMedia, AND xD-Picture Card
± 15-kV ESD-PROTECTED VOLTAGE-TRANSLATION TRANSCEIVER
SCES615H – OCTOBER 2004 – REVISED JANUARY 2007
Table 3. SD Card or MMC (continued)
SIGNAL NAME
PIN PIN PIN
OR PIN FUNCTION
NO. NAME TYPE
(CONNECTION)
A3 4DIR (tie-high) Direction control for 4A/4B. Not used in this mode. Tie to V
CCA
. Input
B3 1A DAT0.h Data bit 1 connected to host. Referenced to V
CCA
. I/O
C3 Depopulated ball
D3 56DIR (tie-high) Direction control for 5A/5B and 6A/6B. Not used in this mode. Tie to V
CCA
. Input
E3 GND GND Ground
F3 12A DNU Output pin not used in this mode. Do not use. Leave unconnected. Output
G3 11A (tie-low) Input pin not used in this mode. Tie to GND. Input
A4 2DIR (tie-high) Direction control for 2A/2B connected to host. Not used in this mode. Tie to V
CCA
. Input
B4 1DIR DAT0-dir.h Direction control for 1A/1B connected to host Input
C4 3DIR (tie-high) Direction control for 3A/3B connected to host. Not used in this mode. Tie to V
CCA
. Input
D4 GND GND Ground
Card select from host. Active low. When CS0 = high, 1A, 2A, 3A, 4A, 1B, 2B, 3B, 4B, and
E4 CS0 CS0.h Input
9B1 are placed in Hi Z.
F4 13A (tie-low) Input pin not used in this mode. Tie to GND. Input
G4 CS1 (tie-high) Card select. Not used in this mode. Tie to V
CCA
for proper operation. Input
A5 MODE1 (tie-low) Input
MODE1, MODE0 determine mode of operation (see Table 1 ). Tie to GND in this mode.
B5 MODE0 (tie-low) Input
C5 GND GND Ground
D5 4B DNU I/O pin not used in this mode. Leave unconnected. I/O
E5 GND GND Ground
F5 7B DNU I/O pin not used in this mode. Leave unconnected. I/O
G5 8B DNU I/O pin not used in this mode. Leave unconnected. I/O
A6 10B1 CLK Clock signal connected to card Output
B6 9B1 CMD Command signal connected to card Output
C6 2B DNU I/O pin not used in this mode. Leave unconnected. I/O
D6 11B DNU Output pin not used in this mode. Do not use. Leave unconnected. Output
E6 10B2 DNU Output pin not used in this mode. Do not use. Leave unconnected. Output
F6 5B DNU I/O pin not used in this mode. Leave unconnected. I/O
G6 6B DNU I/O pin not used in this mode. Leave unconnected. I/O
A7 V
CCB0
V
CCB0
B-port supply voltage. V
CCB0
powers 1B, 2B, 3B, 4B, 9B1, and 10B1. Power
B7 1B DAT0 Data bit 1 connected to card. Referenced to V
CCB0
. I/O
C7 3B DNU I/O pin not used in this mode. Leave unconnected. I/O
D7 12B (tie-low) Input pin not used in this mode. Tie to GND. Input
E7 9B2 DNU I/O pin not used in this mode. Leave unconnected. I/O
F7 14B DNU Open-drain output not used in this mode. Leave unconnected. Output
B-port supply voltage. V
CCB1
powers 5B, 6B, 7B, 8B, 9B2, 10B2, 11B, 12B, and 14B. Not
G7 V
CCB1
(tie-low) Power
used in this mode. Tie to GND.
7
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