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datasheet SD Card

Rev. 1.0

MMBTFxxGWBCA-xMExx

4.0 PRODUCT SPECIFICATION

4.1 Current Consumption

This information table below provides current consumption of Samsung SD/microSD Card. Current consumption is measured by averaging over 1 sec-

ond.

[Table 4-1] : Current Consumption Table

NOTE:

Current consumption on each device can be varied by NAND Flash, . of chips, test conditions and Etc. For specific information, refer to Samsung SD/microSD Card Qualifica-

tion report.

4.2 System Performance

4.2.1 Product Performance & Speed Class Information

Product Performance and Speed Class Informations are based on TestMetrix compliance Tool. Note that the performance measured by TestMetrix does

not represent real performance in various circumstances.

[Table 4-2] : Performance Information

NOTE:

1) Five Speed Classes are defined and indicate minimum performance of the cards in Speed Class Test Mode. Speed Class compliant SDA

Physical Layer Specification, Version 3.00

.Class 0 - These Class cards do not specify performance. It includes all the legacy cards prior to this specification, regardless of its performance

.Class 2 - is more than or equal to 2MB/s performance

.Class 4 - is more than or equal to 4MB/s performance

.Class 6 - is more than or equal to 6MB/s performance

.Class 10 - is more than or equal to 10MB/s performance

4.2.2 Read, Write Timeout Error Conditions

SEC SD/microSD Card shall complete the command within the time period defined as follows or give up and return and error message. If the host does

not get any response with the given timeout it should assume that the card is not going to respond and try recover. For more information, refer to Section

4.6 of the SDA Physical Layer Specification, Version 3.00

[Table 4-3] : Timeout Error Conditions

NOTE:

1) The host shall set ACMD41 timeout more than 1 second to abort repeat of issuing ACMD41 when the card does not indicate ready. The timeout count starts from the first

ACMD41 which is set voltage window in the argument.

Mode Max. Interface Frequency Operations Max.

Default Mode 25Mhz

Read

100mA

Write

High Speed Mode 50Mhz

Read

200mA

Write

Product Number Write Performance (MB/s) Read Performance (MB/s)

Speed Class

MMBTF04GWBCA-xMExx 7

Class 4

MMBTF08GWBCA-xMExx 13 Class 6

MMBTF16GWBCA-xMExx 13 Class 6

Timing Max. Value

Block Read Access Time 100ms

Block Write Access Time 250ms(SDSC/SDHC), 500ms(SDXC)

Initialization Time out(ACMD 41)