| Package |
TSOP-48
|
| Outpack |
TAPE ON REEL
|
| RoHS |
Leaded
|
| Voltage |
5.0 V
|
| Temperature |
0 C~+70 C
|
| Speed |
80 NS
|
| Std. Pack Qty |
1000
|
| Std. Carton |
|
GENERAL DESCRIPTION
The MT28F004B5 (x8) and MT28F400B5 (x16, x8)
are 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.
Please refer to Micron’s Web site (www.micron.com/
flash) for the latest data sheet.
