Swissbit AG

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Revision: 1.10

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S-300u_data_sheet_SD-NxBW_Rev110

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12 SWISSBIT LABEL SPECIFICATION ................................................................................................................................................22

12.1 FRONT SIDE MARKING............................................................................................................................................................22

12.2 BACK SIDE MARKING.............................................................................................................................................................22

13 REVISION HISTORY.....................................................................................................................................................................23

The MICRO SD Memory Card is a small form factor non-volatile memory card which provides high capacity data

storage. Its aim is to capture, retain and transport data, audio and images, facilitating the transfer of all types of

digital information between a large variety of digital systems.

The card operates in two basic modes:



SD/SDHC card mode



SPI mode

The MICRO SD Memory Card also supports SD High Speed mode with up to 50MHz clock frequency.

The cards are compliant with



SD Memory card Specification Part 1, Physical layer Specification V3.01



SD Memory card Specification Part 2, File System Specification V3.00



SD Memory card Specification Part 3, Security Specification V3.00



MICRO SD Memory Card Addendum V4.00

Simplified specifications are available at https://www.sdcard.org/downloads/pls/simplified_specs/

The Card has an internal intelligent controller which manages interface protocols, data storage and retrieval as

well as hardware BCH Error Correction Code (ECC), defect handling, diagnostics and clock control.

The advanced wear leveling mechanism assures an equal usage of the Flash memory cells to extend the life time.

The hardware BCH-code ECC allows to detect and correct up to 24 defect bits per 1kByte.

The card has a power-loss management feature to prevent data corruption after power-down. The power

consumption is very low.

The cards are RoHS compliant and lead-free.

4.1 System Performance

Table 3: Performance

System Performance

typ

max

Unit

Burst Data transfer Rate (max SD clock 50MHz)

25

MB/s

Sustained Sequential Read

1GB

21

(1)(2)

24

(1)(3)

2GB

20

(1)(2)

24

(1)(3)

4…8GB

20

(1)(2)

24

(1)(3)

Sustained Sequential Write

1GB

18

(1)(2)

22

(1)(3)

2GB

11

(1)(2)

12

(1)(3)

4…8GB

17

(1)(2)

22

(1)(3)

1.

All values refer to Micron Flash 8/16Gb MICRO SD Memory Card in SD mode 50MHz, cycle time 20ns,