Multi Media Card SMI MMC Card 128MB 256MB 512MB MMC Plus Memory Card

Multi Media Card SMI MMC Card 128MB 256MB 512MB MMC Plus Memory Card

Available Capacity: 128mb - 4gb.

Voltage Range
3.3V to 1.8V

Environmental Specifications
Temperature  Standard  
Operating  -25°C to 85°C  
Non-Operating  -40°C to 85°C  
 
Humidity  
Operating  8% to 95%, non-condensing
Non-Operating  8% to 95%, non-condensing
 
Acoustic  
Noise (at 1 meter)  0dB
 
Vibration:  
Operating  15 G peak-to-peak max
Non-Operating  15 G peak-to-peak max
 
Shock:  
Operating  1,000 G max
Non-Operating  1,000 G max
  
Altitude (relative to sea level) 
Operating  80,000 feet max
Non-Operating  80,000 feet max

System Reliability and Maintenance
MTBF (Mean Time Between Failures)  >1,000,000 hours
Preventive Maintenance  None
Data Reliability  <1 non-recoverable errors in 10(14) bits read 

The version 4.x of the MMC standard, introduced in 2005, brought in two very significant changes to compete against SD cards: ability to run at higher speeds (26 MHz and 52 MHz) than the original MMC (20 MHz) or SD (25 MHz, 50 MHz) and a four- or eight-bit-widedata bus.

Version 4.x full-size cards and reduced-size cards can be marketed as MMCplus and MMCmobile respectively.

Version 4.x cards are fully backward compatible with existing readers but require updated hardware/software to use their new capabilities; even though the four-bit-wide bus and high-speed modes of operation are deliberately electrically compatible with SD, the initialization protocol is different, so firmware/software updates are required to use these features in an SD reader.

 MMC Card 128MB 256MB 512MB MMC Plus  Memory Card

 MMC Card 128MB 256MB 512MB MMC Plus  Memory Card

 MMC Card 128MB 256MB 512MB MMC Plus  Memory Card