M29W128GL70N6E Micron Technology Inc, M29W128GL70N6E Datasheet - Page 27

• Manufacturer Part Number: M29W128GL70N6E
• Manufacturer: Micron Technology Inc

Specifications of M29W128GL70N6E

• Cell Type: NOR
• Density: 128Mb
• Access Time (max): 70ns
• Interface Type: Parallel
• Boot Type: Not Required
• 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
6.1
6.1.1
6.1.2
Command interface
All bus write operations to the memory are interpreted by the command interface.
Commands consist of one or more sequential bus write operations. Failure to observe a
valid sequence of bus write operations will result in the memory returning to read mode. The
long command sequences are imposed to maximize data security.
The address used for the commands changes depending on whether the memory is in 16-
bit or 8-bit mode.
Standard commands
See either
summary of the standard commands.
Read/Reset command
The device is in read mode after reset or after power-up.
The Read/Reset command returns the memory to read mode. It also resets the errors in the
status register. Either one or three bus write operations can be used to issue the
Read/Reset command.
The Read/Reset command can be issued, between bus write cycles before the start of a
program or erase operation, to return the device to read mode. If the Read/Reset command
is issued during the timeout of a block erase operation, the memory will take up to 10 μs to
abort. During the abort period no valid data can be read from the memory.
The Read/Reset command will not abort an erase operation when issued while in erase
suspend.
Auto Select command
The Auto Select command puts the device in auto select mode, when using the in-system
method (see
read the manufacturer code, the device code, the protection status of each block (block
protection status) and the extended memory block protection indicator.
Three consecutive bus write operations are required to issue the Auto Select command.
Once the Auto Select command is issued bus read operations to specific addresses output
the manufacturer code, the device code, the extended memory block protection indicator
and a block protection status (see
Table
or CFI Query command is issued.
7,
Table
Table
Section 3.7: Auto select
8, and
10, or
Table
Table
9). The memory remains in auto select mode until a Read/Reset
11, depending on the configuration that is being used, for a
Table 10
mode). When in auto select mode, the system can
and
Table 11
in conjunction with
Table
6,
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