SD Memory Cards(S-50 / S-56)

SD Memory Cards(S-50 / S-56)

  • industrial 3D NAND
  • S-56: pSLC, S-50: TLC
  • Page based Flash management
  • High IOPS rate and endurance
  • Autonomous Data Care Management
  • Industrial grade SD Card
  • Power Fail protection & Read Disturb Management


The latest SD memory card series S-30 and S-50 are based on 3D NAND TLC and offer best cost efficiency. The S-30 is targeting highly cost sensitive read mostly applications while the S-50 is a true industrial SD Card for all use cases. For high endurance demand the pSLC version S-56 is the ideal solution. These cards support Class 10, U3 mode.

The continued series S-45 (MLC version), S-46 (pSLC version), S-450 (SLC version) and S-455 (SLC version) include the same set of sophisticated features and, through the implementation of UHS-I, support data transfer rates of up to 90 MB/s. The combination of MLC (Multi Level Cell) NAND Flash with an industrial controller and page based firmware technology enables prolonged data retention and extended life cycles despite the write endurance limitations of MLC Flash. The S-45, S-46 and S-455 SD memory cards excel with a random write data rate of up to 1400 IOPS.

The special firmware features in the latest series include a powerful built-in Error Correction, Read Retry, Autonomous Data Care Management, Life Time Monitoring & diagnostic features, Randomizer, Wear Leveling & Bad Block Management algorithms and intelligent Power Fail Protection.

All Swissbit SD Cards can withstand extreme environmental conditions. They provide the highest level of mechanical stability and enhanced ESD protection. Furthermore, the hard gold SD connectors endure a minimum of 20,000 insertion cycles.

Series Name S-200 / S-250 S-455 / S-450 S-46 / S-45 S-30 S-56 / S-50

Data Transfer Mode

SD 2.0, Class 6 SD 3.0, Class 10, UHS-I SD 6.1, Class 10, UHS-I, V30, A1 SD 6.1, Class 10, UHS-I, A1
Connector SD
Outline Dimensions 32 x 24 x 2.1 mm
Flash Type SLC S-46: pSLC everbit
S-45: MLC durabit
Density Range S-200: 512 MB–2 GB
S-250: 512 MB-2 GB
512 MB-32 GB S-46: 2-64 GB
S-45: 4-128 GB
32-256 GB S-56: 4-64 GB
S-50: 16-256 GB
Status S-200 EOL planned
S-250 New
Active New New
Data Retention 10 years @ life begin
1 year @ life end

(Flash Cell Level)

100k P/E Cycles 100k P/E Cycles

endurance optimized

S-46: 20k P/E Cycles
S-45: 3k P/E Cycles
1k P/E Cycles S-56: 30k P/E Cycles
S-50: 3k P/E Cycles
Operating Temperature Extended: -25°C to +85°C
Industrial: -40°C to +85°C
-25°C to +85°C
-25°C to +85°C
-40°C to +85°C
Storage Temperature -40°C to +100°C -40°C to +85°C -40°C to +100°C

Sequential Read (MB/s)

Sequential Write (MB/s)

Random 4KB Read (IOPS)

Random 4KB Write (IOPS)


up to 24
up to 13.5
up to 1,580
up to 29


up to 44 / 88
up to 38 / 73
up to 1,550 / 1,430
up to 1,300 / 28


up to 46 / 43
up to 52 / 21
up to 1,440 / 1,200
up to 1,260 / 950


up to 95
up to 85
up to 1,700
up to 1,050


up to 94 / 94
up to 82 / 37
up to 2,050 / 2,050
up to 820 / 1,360

MTBF ≥ 3,000,000 hours
Shock 1,000 G 1,500 G
Vibration 15 G 50 G 20 G 50 G
Humidity 85 % RH 85°C, 1,000 hrs
Voltage 2.7 – 3.6 V Normal
Power Consumption
Read typ
Write typ

40 mA
65 mA


75 mA
75 mA


80 mA
70 mA


80 mA

110 mA
110 mA
Features & Tools Proven Power Fail Safety

Sophisticated Wear Leveling & Bad Block management

Diagnostic features & Life Time Monitoring through SD / SPI command set

S-450 block based FTL / S-455, S-45, S-46 page based FTL
Proven Power Fail SafetySophisticated Wear Leveling & Bad Block managementAutonomous Data Care Management

SBLTM Tool & SDK for detailed Life Time Monitoring


Support SD SPI mode
Static and Dynamic
Wear Leveling
Bad Block Management
Auto-Read Refresh
Embedded Mode
Support SD SPI mode
Proven Power Fail Safety
Sophisticated Wear
Leveling & Bad Block
Autonomous Data Care
SBLTM Tool & SDK for
detailed Life Time
Addcom Solution Pte Ltd