M29DW128F60ZA6E NUMONYX, M29DW128F60ZA6E Datasheet - Page 41

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M29DW128F60ZA6E

Manufacturer Part Number
M29DW128F60ZA6E
Description
IC FLASH 128MBIT 60NS 64TBGA
Manufacturer
NUMONYX
Series
Axcell™r
Datasheet

Specifications of M29DW128F60ZA6E

Format - Memory
FLASH
Memory Type
FLASH - Nor
Memory Size
128M (16Mx8, 8Mx16)
Speed
60ns
Interface
Parallel
Voltage - Supply
2.7 V ~ 3.6 V
Operating Temperature
-40°C ~ 85°C
Package / Case
64-TBGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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0
M29DW128F
6.3
6.3.1
6.3.2
Block Protection commands
Blocks or groups of blocks can be protected against accidental program, erase or read
operations. The Protection Groups are shown in
and Protection
Protection scheme
Table
Protection commands.
Only the commands related to the Extended Block Protection are available in both 8 bit and
16 bit memory configuration. The other block protection commands are available in 16-bit
configuration only.
Enter Extended Block command
The M29DW128F has one extra 256-byte block (Extended Block) that can only be accessed
using the Enter Extended Block command.
Three Bus Write cycles are required to issue the Extended Block command. Once the
command has been issued the device enters the Extended Block mode where all Bus Read
or Program operations are conducted on the Extended Block. Once the device is in the
Extended Block mode, the Extended Block is addressed by using the addresses occupied
by the boot blocks in the other operating modes (see
Protection
The device remains in Extended Block mode until the Exit Extended Block command is
issued or power is removed from the device. After power-up or a hardware reset, the device
reverts to the Read mode where commands issued to the Boot Block Address space will
address the Boot Blocks.
Note that when the device is in the Extended Block mode, the V
for fast programming and the Unlock Bypass mode is not available.
The Extended Block cannot be erased, and can be treated as one-time programmable
(OTP) memory. In Extended Block mode only array cell locations (Bank A) with the same
addresses as the Extended Block are not accessible. In Extended Block mode dual
operations are allowed and the Extended Block physically belongs to Bank A.
In Extended Block mode, Erase, Chip Erase, Erase Suspend and Erase resume commands
are not allowed.
To exit from the Extended Block mode the Exit Extended Block command must be issued.
The Extended Block can be protected by setting the Extended Block Protection bit to ‘1’;
however once protected the protection cannot be undone.
Exit Extended Block command
The Exit Extended Block command is used to exit from the Extended Block mode and return
the device to Read mode. Four Bus Write operations are required to issue the command.
16, depending on the configuration that is being used, for a summary of the Block
Groups).
Groups. The device block protection scheme is shown in
and
Figure 6: Block Protection State
Appendix
Table 34: Block Addresses and
diagram. See either
A,
Table 34: Block Addresses
PP
/WP pin cannot be used
Command interface
Figure 7: Software
Table
15, or
41/94

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