M29DW128F70ZA6F NUMONYX, M29DW128F70ZA6F Datasheet - Page 25

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M29DW128F70ZA6F

Manufacturer Part Number
M29DW128F70ZA6F
Description
IC FLASH 128MBIT 70NS 64TBGA
Manufacturer
NUMONYX
Series
Axcell™r
Datasheet

Specifications of M29DW128F70ZA6F

Format - Memory
FLASH
Memory Type
FLASH - Nor
Memory Size
128M (16Mx8, 8Mx16)
Speed
70ns
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
5.2.1
The Block Lock/Unlock Protection operates exactly in the same way as in the Standard Protection mode.
5.2.2
The Non-Volatile Protection is more advanced in the Password Protection mode.
In this mode, the Lock-Down bit cannot be cleared through a hardware reset or a power-down/power-up
sequence.
The Lock-Down bit is cleared by issuing the Password Protection Unlock command along with the correct
password.
Once the correct Password has been provided, the Lock-Down bit is cleared and the Non-Volatile Modify
Protection bits can be set or reset using the appropriate commands (the Set Non-Volatile Modify
Protection bit command or the Clear Non-Volatile Modify Protection bits command, respectively).
If the Password provided is not correct, the Lock-Down bit remains locked and the state of the Non-
Volatile Modify Protection bits cannot be modified.
The Password is a 64-bit code located in the memory space. It must be programmed by the user prior to
selecting the Password Protection mode. The Password is programmed by issuing a Password Program
command and checked by issuing a Password Verify command. The Password should be unique for each
part.
Once the device is in Password Protection mode, the Password can no longer be read or retrieved.
Moreover, all commands to the address where the password is stored, are disabled. Refer to
Block Protection status
scheme.
Table 10.
1. The Lock bit can always be modified by issuing a Clear Lock bit command or by taking the device through a Power-up or
Volatile
Lock
bit
Hardware Reset.
0
0
0
1
1
0
1
1
Protection bit
Non-Volatile
Block Lock/Unlock Protection
Non-Volatile Protection
Block Protection status
Modify
0
0
1
0
1
1
0
1
and
Lock-Down
Figure 7: Software Protection scheme
bit
0
1
0
0
0
1
1
1
Protection
status
Block
00h
01h
Unprotected
Protected
Program/
Erase
Block
Block
Non-Volatile Modify Protection bit cannot be
Non-Volatile Modify Protection bit cannot be
Non-Volatile Modify Protection bit can be
Non-Volatile Modify Protection bit can be
Block Protection status
for details on the block protection
modified
modified
modified
modified
Software Protection
(1)
(1)
(1)
(1)
Table 10:
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