Description
MT28F400B5SG-8 BET Micron Technology Inc. | Integrated Circuits FLASH – NOR Memory IC 4Mb (512K x 8, 256K x 16) Parallel 80ns 44-SOP
SPECIFICATIONS
Part #: MT28F400B5SG-8BET
Part Category: Memory ICs
Manufacturer: Micron Technology, Inc.
Description: 256KX16 FLASH 5V PROM, 80ns, PDSO44
Mfr Package Description 0.600 INCH, PLASTIC, SOP-44
Status Discontinued
Type NOR TYPE
Sub Category Flash Memories
Access Time-Max 80.0 ns
Boot Block BOTTOM
Command User Interface YES
Data Polling NO
JESD-30 Code R-PDSO-G44
JESD-609 Code e0
The MT28F400B5 (x16, x8) is nonvolatile, electrically block-erasable (Flash), programmable, read-only memories containing 4,194,304 bits organized as 262,144 words (16 bits) or 524,288 bytes (8 bits). Writing or erasing the device is done with a 5V VPP voltage, while all operations are performed with a 5V VCC. Due to process technology advances, 5V VPP is optimal for application and production programming. These devices are fabricated with Micron’s advanced 0.18µm CMOS floating-gate process. The MT28F004B5 and MT28F400B5 are organized into seven separately erasable blocks. To ensure that critical firmware is protected from accidental erasure or overwrite, the devices feature a hardware-protected boot block. Writing or erasing the boot block requires either applying a super-voltage to the RP# pin or driving WP# HIGH in addition to executing the normal write or erase sequences. This block may be used to store code implemented in low-level system recovery. The remaining blocks vary in density and are written and erased with no additional security measures.
Manufacturer:Micron
Datasheet:MICTS03242-1.pdf
