SFSD1024N1BW1MT-E-ME-111-STD 데이터 시트보기 (PDF) - Unspecified

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SFSD1024N1BW1MT-E-ME-111-STD

Industrial MICRO SD Memory Card

Unspecified 

7 Electrical interface

7.1 Electrical description

Figure 3: MICRO SD Memory Card Block Diagram

Figure 4: MICRO SD Memory Card Shape and

Interface (Bottom View)

Table 11: MICRO SD Memory Card Pad Assignment

Pin #

SD Mode

SPI Mode

Name Type1 Description

Name Type1 Description

1

DAT25 I/O/PP Data Line [Bit 2]

RSV

2 CD/DAT32 I/O/PP3 Card Detect/ Data Line [Bit 3]

CS

I3 Chip Select (negative true)

3

CMD

PP Command/Response

DI

I Data In

4

VDD

S Supply voltage

VDD

S Supply voltage

5

CLK

I Clock

SCLK

I Clock

6

VSS

S Supply voltage ground

VSS

S Supply voltage ground

7

DAT0 I/O/PP Data Line [Bit 0]

DO O/PP Data Out

8

DAT14 I/O/PP Data Line [Bit 1]

RSV

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

CH-9552 Bronschhofen

Switzerland

Swissbit reserves the right to change products or specifications without notice.

Revision: 1.10

www.swissbit.com

industrial@swissbit.com

S-300u_data_sheet_SD-NxBW_Rev110

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