M29W640GT70NA6E NUMONYX, M29W640GT70NA6E Datasheet - Page 88

• 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

Appendix E
Figure 30. Write to Buffer and Program flowchart and pseudocode
1. n+1 is the number of addresses to be programmed.
2. A Write to Buffer and Program Abort and Reset must be issued to return the device in read mode.
3. When the block address is specified, any address in the selected block address space is acceptable. However when
4. DQ7 must be checked since DQ5 and DQ7 may change simultaneously.
5. If this flowchart location is reached because DQ5=’1’, then the Write to Buffer and Program command failed. If this
6. See
88/90
loading write buffer address with data, all addresses must fall within the selected write buffer page.
flowchart location is reached because DQ1=’1’, then the Write to Buffer and Program command aborted. In both cases, the
appropriate reset command must be issued to return the device in read mode: a Reset command if the operation failed, a
Write to Buffer and Program Abort and Reset command if the operation aborted.
Table 10
and
Table
11, for details on Write to Buffer and Program command sequence.
Flowchart
YES
NO
DQ1 = 1
NO
Check Status Register
to Flash Block Address
Read Status Register
Last Loaded Address
Last Loaded Address
Program Address Pair
(DQ1, DQ5, DQ7) at
FAIL OR ABORT
Write to Buffer F0h
Write Buffer Data,
Program Buffer
(DQ5, DQ7) at
Block Address
Block Address
Write Next Data,
Start Address
DQ7 = Data
DQ7 = Data
Abort Write
Command,
Write n
to Buffer
DQ5 = 1
X = X-1
X = 0
Start
YES
X=n
(4)
NO
NO
YES
NO
NO
(1)
,
(5)
YES
YES
(3)
YES
Program Aborted
Write to a Different
Write to Buffer and
Block Address
Write to Buffer and Program Command
END
First Part of the
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