Manufacturers like Intel, AMD, Atmel and others offer a variety of flash memory devices with a long list of features.Here is a partial list:
PCMCIA flash memory cards (e.g. Intel's 40 MB Memory Card) utilize an array of flash chip dies within a single package.
- 32 KB to 4 MB capacity per device (and growing)
- 1,000 to 100,000 minimum erase/write cycles
- 8 to 1,024 sectors
- 45 to 250 nsec access time
- same size sectors versus "Boot-block" sizes
- byte versus word accessing (some pin-selectable)
- pin-out upgradable to larger capacity (some models)
- JEDEC pin-out and command compatible (some models)
- 3.3 versus 5.0 volt (some pin-selectable)
- 12 volts erase/write voltage (some models)
- power-down modes (some models)
- on-board RAM buffering for writes (some models)
- writes during erase (some models)