The secure digital memory card (SD memory card) is a flash-based memory card. It
specifically designed to meet the security, capacity, performance and environmental
requirements of the latest generation audio and video consumer electronic devices,
that is mobile phones, digital cameras, digital recorders, PDAs, organizers
and electronic toys. The secure digital memory card is a high-mobility, high-performance,
low-cost and low-power consumption device that features high data throughput
at the memory card interface. It includes a copyright protection mechanism
that complies with the security of the SDMI (Secure Digital Music Initiative)
standard.
The secure digital memory: card security system uses mutual authentication that protects
the card from illegal use. Unsecured access to the user's personal content
is also available. The secure digital memory cards have an advanced communication
interface designed to operate in a low voltage range. The full-size Secure
Digital Memory Card has a 9-pin interface.
Features
1) On card error correction
2) Two alternative communication protocols: SD mode and SPI mode
3) Voltage range for communication: 2.0~3.6V for operating: 2.7~3.6V
4) Low power consumption: automatic power down and automatic wake up,
smart power management
5) No external programming voltage required.
6) Damage free powered card insertion and removal
7) Forward compatibility to multimedia card
8) High speed serial interface with random access
9) Up to 10 stacked card (at 20MHz, VCC=2.7~3.6V)
10) Data endurance: 100k program/erase cycles
11) Dimensions (W x L x T): 24 x 32 x 2.1mm
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