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参数资料
| 型号： | SFSD1024N1BN1TO-I-DF-151-STD |
| 厂商： | Swissbit NA Inc |
| 文件页数： | 8/23页 |
| 文件大小： | 0K |
| 描述： | FLASH MICRO SD CARD IND S-200 1G |
| 视频文件： | Swissbit Manufacturing Overview |
| RoHS指令信息： | Environment Protection Declaration |
| 标准包装： | 50 |
| 系列： | S-200u |
| 存储容量： | 1GB |
| 存储器类型： | 存储卡 - microSD? |
| 其它名称： | 1052-1036 SFSD1024N1BN2TO-I-ME-151-STD |
6 Electrical interface
6.1 Electrical description
Figure 4: MICRO SD Memory Card Block Diagram
Figure 5: MICRO SD Memory Card Shape and
Interface (Bottom View)
Table 12: MICRO SD Memory Card Pad Assignment
Pin #
SD Mode
SPI Mode
Name
Type 1 Description
Name
Type 1 Description
1
DAT2 5
I/O/PP Data Line [Bit 2]
RSV
I/O/PP Card Detect/ Data Line [Bit 3]
2
CD/DAT3
2
3
CS
I 3
Chip Select (negative true)
3
4
5
6
CMD
VDD
CLK
VSS
PP
S
I
S
Command/Response
Supply voltage
Clock
Supply voltage ground
DI
VDD
SCLK
VSS
I
S
I
S
Data In
Supply voltage
Clock
Supply voltage ground
7
8
DAT0
DAT1 4
I/O/PP Data Line [Bit 0]
I/O/PP Data Line [Bit 1]
DO
RSV
O/PP Data Out
Notes:
1) S: power supply; I: input; O: output using push-pull drivers; PP: I/O using push-pull drivers;
2) The extended DAT lines (DAT1-DAT3) are input on power up. They start to operate as DAT lines after
SET_BUS_WIDTH command. The Host shall keep its own DAT1-DAT3 lines in input mode, as well, while they
are not used.
3) At power up this line has a 50kOhm pull up enabled in the card. This resistor serves two functions Card
detection and Mode Selection. For Mode Selection, the host can drive the line high or let it be pulled high
to select SD mode. If the host wants to select SPI mode it should drive the line low. For Card detection,
the host detects that the line is pulled high. This pull-up should be disconnected by the user, during
regular data transfer, with SET_CLR_CARD_DETECT (ACMD42) command
4) DAT1 line may be used as Interrupt Output (from the Card) in SDIO mode during all the times that it is not
in use for data transfer operations (refer to "SDIO Card Specification" for further details).
5) DAT2 line may be used as Read Wait signal in SDIO mode (refer to "SDIO Card Specification" for further
details).
Swissbit AG
Industriestrasse 4
Swissbit reserves the right to change products or specifications without notice.
Revision: 1.00
CH-9552 Bronschhofen
Switzerland
www.swissbit.com
info@swissbit.com
S-200u_data_sheet_SD-NxBN_Rev102
Page 8 of 23
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