M29W128GH70N6F NUMONYX, M29W128GH70N6F Datasheet - Page 45

• Manufacturer Part Number: M29W128GH70N6F
• Manufacturer: NUMONYX

Specifications of M29W128GH70N6F

• Cell Type: NOR
• Density: 128Mb
• Access Time (max): 70ns
• Interface Type: Parallel
• Address Bus: 24/23Bit
• Operating Supply Voltage (typ): 3/3.3V
• Operating Temp Range: -40C to 85C
• Package Type: TSOP
• Sync/async: Asynchronous
• Operating Temperature Classification: Industrial
• Operating Supply Voltage (min): 2.7V
• Operating Supply Voltage (max): 3.6V
• Word Size: 8/16Bit
• Number Of Words: 16M/8M
• Supply Current: 10mA
• Mounting: Surface Mount
• Pin Count: 56
• Lead Free Status / RoHS Status: Compliant

6.3.6
6.3.7
6.3.8
NVPB lock bit command set
Enter NVPB Lock Bit Command Set command
Three bus write cycles are required to issue the Enter NVPB Lock Bit Command Set
command. Once the command has been issued, the commands allowing to set the NVPB
lock bit can be issued to the device.
NVPB Lock Bit Program command
The NVPB Lock Bit Program command is used to set the NVPB lock bit to ‘0’ thus locking
the NVPBs and preventing them from being modified.
The NVPB Lock Bit Program command is a special kind of Program command and must be
used according to all the Program command timings. The result from this command can be
verified by checking the status register.
Read NVPB Lock Bit Status command
This command is used to read the status of the NVPB lock bit.
Volatile protection mode command set
Enter Volatile Protection Command Set command
Three bus write cycles are required to issue the Enter Volatile Protection Command Set
command. Once the command has been issued, the commands related to the volatile
protection mode can be issued to the device.
Volatile Protection Bit Program command (VPB Program)
The VPB Program command individually sets a VPB to ‘0’ for a given block.
If the NVPB for the same block is set, the block is locked regardless of the value of the VPB
bit. (see
Read VPB Status command
The status of a VPB for a given block can be read by issuing a Read VPB Status command
along with the block address.
VPB Clear command
The VPB Clear command individually clears (sets to ‘1’) the VPB for a given block.
If the NVPB for the same block is set, the block is locked regardless of the value of the VPB
bit (see
Exit Protection Command Set command
The Exit Protection Command Set command is used to exit from the lock register, password
protection, non-volatile protection, volatile protection, and NVPB lock bit command set
mode. It returns the device to read mode.
Table 19: Block protection
Table 19: Block protection
status).
status).
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