STEC | Interface | SecureDigital SD and MiniSD | Serial Peripheral Interface (SPI)

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	RELATED APPLICATIONS

Communications/Networking

Embedded/Industrial

Medical Equipment


	RELATED TECHNOLOGIES

Advanced Flash Management

Total Drive Protection

Flash Life Support

Home > Interface > SecureDigital (SD)

SECUREDIGITAL (SD) OVERVIEW

The SD interface allows for easy integration of the SecureDigital cards in any application. The communication over the SD bus is based on command and data bit streams which are initiated by a start bit and terminated by a stop bit. The applications requiring higher data bandwidth have the flexibility to select the bus width from 1 bit to 4 bits on the SD card. The SD protocols minimize the number of pins. In fact, the protocols require only 1 to 8 pins for data on top of the pins for Command, Clock, power, and ground signals.

SECUREDIGITAL (SD) INTERFACE

SPECIFICATION

SECUREDIGITAL (SD)

miniSD *

INTERFACE

•	SD
•	SPI

•	SD
•	SPI

APPLICATIONS

•	Communications/Networking
•	Embedded/Industrial
•	Medical Equipment

•	Communications/Networking
•	Embedded/Industrial
•	Medical Equipment

TECHNOLOGY

•	Advanced Flash Management
•	Total Drive Protection
•	Flash Life Support

•	Advanced Flash Management
•	Total Drive Protection
•	Flash Life Support

CAPACITIES

•	64MB - 2GB

•	128MB - 2GB

READ/WRITE PERFORMANCE (MB/s)

•

12.1/9.5

•

12.1/9.5

	DIMESIONS
	Single (mm)


•	32.0(L) x 24.0(W) x 2.1(H)


•	20.0(L) x21.5(W) x 1.4(H)

	POWER CONSUMPTION
	Sleep/Idle mode
	Operating mode


•	3mA (max)
•	70mA (max)


•	3mA (max)
•	70mA (max)

* Requires SD Interface Adapter

EDUCATION CENTER
WHY SD?

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SecureDigital (SD)

miniSD

SECUREDIGITAL (SD)

STEC Industrial Grade Secure Digital Memory Cards are small, removable and non-volatile flash memories with a high performance interface.

Available both in small and large capacity, STEC's Industrial Grade Secure Digital cards are specifically designed, manufactured and tested to withstand extreme environmental conditions and to improve system reliability and endurance.

• Compliant to SD Specification V1.10
• Supports SD and SPI Mode
• Operating Voltage of 2.7V to 3.6V
• 2 Million Write/Erase Cycles
• Two Operating Temperature Ranges
• RoHS 6 Compliant
• Two Operating Temperature Ranges
• Commercial: 0° C to +70° C
• Industrial: -40° C to + 85° C

miniSD

STEC Industrial Grade miniSD and microSD memory cards are small, removable and non-volatile flash memories with a high performance interface.

Available both in small and large capacity, STEC¹s Industrial Grade miniSD and microSD cards are specifically designed, manufactured and tested to withstand extreme environmental conditions and to improve system reliability and endurance.

• Compliant to SD Specification V1.10
• Supports SD and SPI Mode
• Operating Voltage of 2.7V to 3.6V
• 2 Million Write/Erase Cycles
• RoHS 6 Compliant
• Two Operating Temperature Ranges
• Commercial: 0° C to +70° C
• Industrial: -40° C to + 85° C

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