4 GB, SD memory card, SPI, MLC, -25 to 85°C

Manufacturer's part number :


Manufacturer Swissbit


Description :

The 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 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 levelling 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 40 defect bits per 1kByte. The controller performes control read operations and checks the consistence of the data. If an error of some bits is detected, the card refreshes all data in the flash cells to prevent data retention problems.

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  • Fully compliant with SD Memory Card specification 2.0
  • SD mode and SPI mode supported
  • Target speed class value: class 6 according SD2.0 specification
  • FAT32 preformatted
  • High performance 2.0 specification
  • SD burst up to 25MB/s
  • SD Normal speed 0 to 25MHz clock rate
  • SD High speed 25 to 50MHz clock rate
  • Flash burst up to 90MB/s
  • Up to 24MByte/sec sequential data rate
  • Power Supply: (Low-power CMOS technology)
  • 2.7 to 3.6V normal operating voltage
  • 2 to3.6V basic communication (CMD0, 15, 55 ACMD41) voltage
  • Standard SD Memory card form factor
  • 32mm x 24mm x 2.1mm and Write Protect slider
  • Optimized FW algorithms especially for high read access and long data retention applications
  • Patented power-off reliability technology
  • Wear Levelling technology
  • Equal wear levelling of static and dynamic data. The wear levelling assures that dynamic data as well as static data is balanced evenly across the memory, With that the maximum write endurance of the device is guaranteed
  • Write Endurance technology
  • Due to intelligent wear levelling an even use of the entire flash is guaranteed, regardless how much "static" (OS) data is stored
  • Read Disturb Management
  • The read commands are monitored and the content is refreshed when critical levels have occurred
  • Auto Refresh for Data Retention enhancement
  • The interruptible background process maintain the user data for Read Disturb effects or Retention degradation due to high temperature effects
  • Near miss ECC technology
  • Minimize the risk of uncorrectable bit failure over the product life time, Each read command analyzes the ECC margin level and refreshes data if necessary
  • Diagnostic features with Life Time Monitoring tool support
  • High reliability
  • Designed for industrial market especially read intensive application like navigation, infotainment, POS/POI, Medical and general boot medium use case:
  • Longevity, long life cycle, high data retention together with high temperature profile
  • Intensive write application should use the S-400 series cards
  • Number of card insertions/removals 20,000
  • Extended Temperature range -25° up to 85°C (optional -40° up to 85°C)
  • SIP (System In Package) process for extreme dust, water and ESD proof
  • Controlled BOM and PCN process
  • Customized options like CID registers, CPRM keys, firmware includes settings and marking by projects
Features Similar products
Write Data Rate 11 MB/s  

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Package 32 x 24 x 2.1 mm  
Form Factor/Package SD  
Type Multi level cell  
Density 4 GB  
Interface SPI  
Connector SD  
Operating Temperature -25 to 85°C  
Read Data Rate 22 MB/s