參數(shù)資料
型號(hào)： SN74AVCA406GQCR
廠商： Texas Instruments, Inc.
英文描述： MMC SD CARD MEMORY STICK SMARTMEDIA AND XD PICTURE CARD 15KV ESD PROTECTED VOLTAGE TRANSLATION TRANSCEIVER
中文描述： MMC中記憶棒SD卡SmartMedia和xD圖像卡15KV靜電保護(hù)電壓轉(zhuǎn)換收發(fā)器
文件頁(yè)數(shù)： 10/51頁(yè)
文件大小： 1435K
代理商： SN74AVCA406GQCR
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SCES615B – OCTOBER 2004 – REVISED DECEMBER 2004
10
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Table 4. SD/SDIO Card or MMC
PIN
NO.
PIN
NAME
SIGNAL NAME
OR
(CONNECTION)
PIN FUNCTION
PIN
TYPE
A1
VCCA
10A1
VCCA
SCLK.h
A-port supply voltage. VCCA powers all A-port I/Os and control inputs.
Serial clock signal from host
Power
B1
Input
C1
9A
DI.h
Serial data in (master out slave in) connected to host. Connect 9DIR to VCCA to make 9A an
input.
I/O
D1
9DIR
(tie-high)
Direction control for 9A/9B. Tie high to make 9A an input and 9B an output.
Input
E1
78DIR
(tie-high)
Direction control for 7A/7B and 8A/8B. Not used in this mode. Tie to VCCA.
I/O pin not used in this mode. Tie to GND.
Input
F1
7A
(tie-low)
I/O
G1
VCCA
2A
VCCA
CS.h
A-port supply voltage. VCCA powers all A-port I/Os and control inputs.
Card select connected to host. Connect 2DIR to VCCA to make 2A an input.
I/O pin not used in this mode. Tie to GND.
Power
A2
I/O
B2
3A
(tie-low)
I/O
C2
10A2
DNU
Clock feedback to host. Not used in this mode. Leave unconnected.
Output
D2
4A
(tie-low)
I/O pin not used in this mode. Tie to GND.
I/O
E2
6A
(tie-low)
I/O pin not used in this mode. Tie to GND.
I/O
F2
8A
(tie-low)
I/O pin not used in this mode. Tie to GND.
I/O
G2
5A
(tie-low)
I/O pin not used in this mode. Tie to GND.
I/O
A3
4DIR
(tie-high)
Direction control for 4A/4B. Not used in this mode. Tie to VCCA.
Serial data out (master in slave out) connected to host. Connect 1DIR to GND to make 1A an
output.
Input
B3
1A
DO.h
I/O
C3
Depopulated ball
D3
56DIR
(tie-high)
Direction control for 5A/5B and 6A/6B. Not used in this mode. Tie to VCCA.
Ground
Input
E3
GND
GND
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. Tie to VCCA to make 2A an input and 2B an output.
Direction control for 1A/1B. Tie to GND to make 1B an input and 1A an output.
Input
B4
1DIR
(tie-low)
Input
C4
3DIR
(tie-high)
Direction control for 3A/3B. Not used in this mode. Tie to VCCA.
Ground
Input
D4
GND
GND
E4
CS0
(tie-low)
Card select signal. Not used in this mode. For proper operation, tie to GND.
Input
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. For proper operation, tie to VCCA.
Input
A5
MODE1
(tie-low)
MODE1, MODE0 determine mode of operation (see Table 1). Tie to GND in this mode.
Input
B5
MODE0
(tie-low)
Input
C5
GND
GND
Ground
D5
4B
DNU
Card select connected to card. Connect 2DIR to VCCA to make 2B an output.
Ground
I/O
E5
GND
GND
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
SCLK
Serial clock signal connected to card
Output
B6
9B1
DI
Serial data in (master out slave in) connected to card
Output
C6
2B
CS
I/O pin not used in this mode. Leave unconnected.
I/O
D6
11B
DNU
Output pin not used in this mode. Leave unconnected.
Output
E6
10B2
DNU
Output pin not used in this mode. Leave unconnected.
Output
F6
5B
DNU
I/O pin not used in this mode. Leave unconnected.
I/O
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