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SMSXXXAF 数据表(PDF) 13 Page - Numonyx B.V

部件名 SMSXXXAF
功能描述  64 MByte, 128 MByte, 256 MByte 512 MByte and 1 GByte, 3.3V Supply Secure Digital??Card
PDF  61 Pages
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制造商  NUMONYX [Numonyx B.V]
网页  http://www.numonyx.com
标志 NUMONYX - Numonyx B.V

SMSXXXAF 数据表(HTML) 13 Page - Numonyx B.V

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SMSxxxAF, SMSxxxFF, SMSxxxBF
Secure digital memory card interface
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3
Secure digital memory card interface
This section applies to the full-size SD Memory Card only, or to the MiniSD and MicroSD
card when used with an adapter.
Details on the 11-pin communication interface of the MiniSD card used without an adapter
are still to be announced. Figure 3: MicroSD pin assignment shows the MicroSD pinout.
The Secure Digital Memory Card has an advanced 9-pin communication interface (Clock,
Command, 4 Data pins and 3 Power Supply pins) designed to operate in a low voltage
range. The Secure Digital Card has its nine pins exposed on one side (see Figure 2). The
signal/pin assignments are listed in Table 8 The pin types are Power Supply, Input, Output
and Push-Pull. The signals include six communication lines CMD, DAT0, DAT1, DAT2, DAT3,
CLK and three supply lines VDD, VSS1 and VSS2.
Figure 2.
Full size Secure Digital Memory Card form factor
Table 8.
Full-size SD Memory Card pin assignment
Pin #
SD mode
SPI mode
Name
Type(1)
1.
S: power supply; I: input; O: output using push-pull drivers; PP: I/O using push-pull drivers.
Description
Name
Type
Description
1CD/DAT3(2)
2.
The extended DAT lines (DAT1-DAT3) are input on power-up. They start to operate as DAT lines after SET_BUS_WIDTH
command.
I/O/PP(3)
3.
After power-up this line is input with 50kW pull-up (can be used for card detection or SPI mode selection). The pull-up
should be disconnected by the user, during regular data transfer, with SET_CLR_CARD_DETECT (ACMD42) command.
Card Detect / Data Line [Bit 3]
CS
I
Chip Select (active Low)
2
CMD
PP
Command/Response
DI
I
Data In
3VSS1
S
Supply voltage ground
VSS
S
Supply voltage ground
4VDD
S
Supply voltage
VDD
S
Supply voltage
5
CLK
I
Clock
SCLK
I
Clock
6VSS2
S
Supply voltage ground
VSS2
S
Supply voltage ground
7
DAT0
I/O/PP
Data Line [Bit 0]
DO
O/PP Data Out
8DAT1(2)
I/O/PP
Data Line [Bit 1]
Reserved
9DAT2(2)
I/O/PP
Data Line [Bit 2]
Reserved
ai10029
SD Memory
Card
123456 7 8
9
Write Enable (Up)
Write Protect (Down)



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