M29W128FH, M29W128FL
Summary description
1
Summary description
The M29W128FH and M29W128FL are 128 Mbit (16Mb x8 or 8Mb x16) non-volatile
memories that can be read, erased and reprogrammed. These operations can be performed
using a single low voltage (2.7 to 3.6V) supply. At Power-up the memories default to Read
mode. The M29W128FH and M29W128FL are divided into 256 thirty-two KWord (sixty-four
KByte) uniform blocks.
Program and Erase commands are written to the Command Interface of the memory. An on-
chip Program/Erase Controller simplifies the process of programming or erasing the
memory by taking care of all of the special operations that are required to update the
memory contents. The end of a program or erase operation can be detected and any error
conditions identified. The command set required to control the memory is consistent with
JEDEC standards.
The Chip Enable, Output Enable and Write Enable signals control the bus operations of the
memory. They allow simple connection to most microprocessors, often without additional
logic.
The devices support Asynchronous Random Read and Page Read from all blocks of the
memory array.
The M29W128FH and M29W128FL have an extra 128 Word (256 Byte) Extended Memory
Block that can be accessed using a dedicated command. The Extended Memory Block can
be protected and so is useful for storing security information. However the protection is
irreversible, once protected the protection cannot be undone.
Each block can be erased independently, so it is possible to preserve valid data while old
data is erased.
The devices feature two different levels of hardware block protection to avoid unwanted
program or erase (modify):
●
●
The V
PP
/WP pin protects the highest block on the M29W128FH and the lowest block
on the M29W128FL.
The RP pin temporarily unprotects all the blocks previously protected using a High
Voltage Block Protection technique (see
The memories are offered in TSOP56 (14 x 20mm) and TBGA64 (10 x 13mm, 1mm pitch)
packages.
In order to meet environmental requirements, Numonyx offers the M29W128FH and the
M29W128FL in ECOPACK
®
packages. ECOPACK packages are Lead-free. The category of
second Level Interconnect is marked on the package and on the inner box label, in
compliance with JEDEC Standard JESD97. The maximum ratings related to soldering
conditions are also marked on the inner box label.
The memories are supplied with all the bits erased (set to ’1’).
The M29W128FH and the M29W128FL will be referred to as M29W128F throughout the
document.
Table 1.
A0-A22
Signal names
Address Inputs
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NUMONYX [ NUMONYX B.V ]
