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3 Product Specification
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 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 V2.00
SD Memory Card Specification Part 2, File System Specification V2.00
MICRO SD Memory Card Specification V1.10
The Card has an internal intelligent controller which manages interface protocols, data storage and retrieval as
well as hardware RS-code Error Correction Code (ECC), defect handling, diagnostics and clock control.
The wear leveling mechanism assures an equal usage of the Flash memory cells to extend the life time.
The hardware RS-code ECC allows to detect and correct 4 symbols per 528 Bytes.
The Card has a voltage detector and a powerful power-loss management feature to prevent data corruption after
power-down. The power consumption is very low.
The cards are offered in 2 temperature ranges
? Extended - 25°C…85°C
? Industrial - 40…85°C
The cards are RoHS compliant and lead-free.
3.1 System Performance
Table 3: Performance
System Performance
Burst Data transfer Rate (max clock 50MHz)
Typ.
Max.
25
Unit
Sustained Sequential Read
512MB …1GB
18
(1)(2)
21
MB/s
Sustained Sequential Write
512MB…1GB
7/13
(1)(2)
18
1.
2.
All values refer to Toshiba Flash 4Gb 512 MB MICRO SD Memory Card in SD mode 50MHz, cycle time 20ns, write/read file sequential.
Sustained Speed measured with SanDisk Mobile mate USB-SD Memory Card reader. It depends on burst speed, flash type and
number, and file size
3.2 Environmental Specifications
3.2.1 Recommended Operating Conditions
Table 4: MICRO SD Memory Card Recommended Operating Conditions
Parameter
Extended Operating Temperature
Industrial Operating Temperature
Power Supply VCC (3.3V)
min
-25
-40
2.7
typ
25
25
3.3
max
85
85
3.6
unit
°C
°C
V
Table 5: Current consumption
Current Consumption (type)
Write
Read
Sleep Mode
typ
40
30
0.2
max
50
50
0.4
Unit
mA
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 23 of 23
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