BRIGHT
Microelectronics
Inc.
BM29F400T/BM29F400B
machine is operating will be erroneous. Thus, these address locations will need rewriting after the
device is reset.
FEATURES
·
5.0V +/- 10% Program and Erase
· RESET
-
Minimizes system-level power requirements
High performance
-
Hardware pin resets the internal state
machine to the read mode
-
90 nS access time
·
Internal Erase Algorithms
·
Compatible with JEDEC-standard Commands
-
Automatically erases a sector, any
combination of sectors, or the entire
-
Uses software commands, pinouts, and
packages following industry standards for
single power supply Flash memory
chip
·
·
Internal Programming Algorithms
·
·
Typically 100,000 Program/Erase Cycles
Sector Erase Architecture
-
Automatically programs and verifies data at a
specified address
-
One 16 Kbytes, two 8 Kbytes, one 32 Kbytes,
and seven 64 Kbytes
Low Power Consumption
- 20 mA typical active read current for Byte
Mode
-
Any combination of sectors can be erased
concurrently; also supports full chip erase
-
28 mA typical active read current for Word
Mode
·
·
Erase Suspend/Resume
-
30 mA typical write/erase current
-
Suspend a sector erase operation to allow a
data read in a sector not being erased within
the same device
·
·
Sector Protection
- Hardware method disables any combination
of sectors from a program or erase operation
Ready/Busy
-
RY/BY output pin for detection of
Boot Code Sector Architecture
programming or erase cycle completion
FAMILY PART NO.
-90
90
-120
120
120
-150
150
150
Maximum Access Time (nS)
90
CE
OE
(E) Access time (nS)
(G) Access time (nS)
35
50
60
*This speed is available with Vcc = 5V +/- 5% variation
- 2 -
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