M29W640GT70NA6E NUMONYX, M29W640GT70NA6E Datasheet - Page 27

• Manufacturer Part Number: M29W640GT70NA6E
• Description: IC FLASH 64MBIT 70NS 48TSOP
• Manufacturer: NUMONYX
• Series: Axcell™r

Specifications of M29W640GT70NA6E

• Format - Memory: FLASH
• Memory Type: FLASH - Nor
• Memory Size: 64M (8Mx8, 4Mx16)
• Speed: 70ns
• Interface: Parallel
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-TSOP
• Cell Type: NOR
• Density: 64Mb
• Access Time (max): 70ns
• Interface Type: Parallel
• Boot Type: Top
• Address Bus: 23/22Bit
• 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: 8M/4M
• Supply Current: 10mA
• Mounting: Surface Mount
• Pin Count: 48
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

M29W640GH, M29W640GL, M29W640GT, M29W640GB
Command interface
4.1.10
Program command
The Program command can be used to program a value to one address in the memory
array at a time. The command requires four bus write operations, the final write operation
latches the address and data, and starts the program/erase controller.
Programming can be suspended and then resumed by issuing a Program Suspend
command and a Program Resume command, respectively (see
Section 4.1.8: Program
and
Suspend command
Section 4.1.9: Program Resume
command).
If the address falls in a protected block then the Program command is ignored, the data
remains unchanged. The status register is never read and no error condition is given.
During the program operation the memory will ignore all commands. It is not possible to
issue any command to abort or pause the operation. Typical program times are given in
cycles. Bus read operations during the
Table 12: Program, erase times and endurance
program operation will output the status register on the Data Inputs/Outputs. See the section
on the status register for more details.
After the program operation has completed the memory will return to the read mode, unless
an error has occurred. When an error occurs the memory will continue to output the status
register. A Read/Reset command must be issued to reset the error condition and return to
read mode.
Note that the Program command cannot change a bit set to ’0’ back to ’1’. One of the erase
commands must be used to set all the bits in a block or in the whole memory from ’0’ to ’1’.
Refer to
and
Figure 6: Write enable controlled program waveforms (8-bit mode)
Figure 7:
for a description of Program AC
Chip enable controlled program waveforms (8-bit mode)
waveforms.
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