The AT49F080 is a 5-volt-only in-system Flash Memory device. Its 8-megabits of memory is organized as 1,024,576 words by 8-bits. Manufactured with Atmel's advanced nonvolatile CMOS technology, the device offers access times to 90 ns with power dissipation of just 275 mW over the commercial temperature range. When the device is deselected, the CMOS standby current is less than 100 A. The device contains a user-enabled "boot block" protection feature. Two versions of the feature are available: the AT49F080 locates the boot block at lowest order addresses ("bottom boot"); the AT49F080T locates it at highest order addresses ("top boot").