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参数资料
| 型号： | S29GL032M10TAIR52 |
| 厂商： | Spansion Inc. |
| 英文描述： | CAP TANT 220UF 2.5V 20% POLY SMD |
| 中文描述： | MirrorBit闪存系列 |
| 文件页数： | 14/159页 |
| 文件大小： | 5216K |
| 代理商： | S29GL032M10TAIR52 |
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110
S29GLxxxM MirrorBitTM Flash Family
S29GLxxxM_00_B3 Octorber 18, 2004
Data s he et
Sector Erase Command Sequence
Sector erase is a six bus cycle operation. The sector erase command sequence is initiated by writing two unlock
cycles, followed by a set-up command. Two additional unlock cycles are written, and are then followed by the
address of the sector to be erased, and the sector erase command. Table 35 on page 113 and Table 36 on
page 114 shows the address and data requirements for the sector erase command sequence.
The device does not require the system to preprogram prior to erase. The Embedded Erase algorithm automati-
cally programs and verifies the entire memory for an all zero data pattern prior to electrical erase. The system is
not required to provide any controls or timings during these operations.
After the command sequence is written, a sector erase time-out of 50 s occurs. During the time-out period, ad-
ditional sector addresses and sector erase commands may be written. Loading the sector erase buffer may be
done in any sequence, and the number of sectors may be from one sector to all sectors. The time between these
additional cycles must be less than 50 s, otherwise erasure may begin. Any sector erase address and command
following the exceeded time-out may or may not be accepted. It is recommended that processor interrupts be
disabled during this time to ensure all commands are accepted. The interrupts can be re-enabled after the last
Sector Erase command is written. Any command other than Sector Erase or Erase Suspend during the
time-out period resets the device to the read mode. Note that the SecSi Sector, autoselect, and CFI func-
tions are unavailable when an erase operation is in progress. The system must rewrite the command sequence
and any additional addresses and commands.
The system can monitor DQ3 to determine if the sector erase timer has timed out (See the section on DQ3: Sector
Erase Timer.). The time-out begins from the rising edge of the final WE# pulse in the command sequence.
When the Embedded Erase algorithm is complete, the device returns to reading array data and addresses are no
longer latched. The system can determine the status of the erase operation by reading DQ7, DQ6, or DQ2 in the
erasing sector. Refer to the “Write Operation Status” on page 115 section for information on these status bits.
Once the sector erase operation starts, only the Erase Suspend command is valid. All other commands are ig-
nored. However, note that a hardware reset immediately terminates the erase operation. If that occurs, the
sector erase command sequence should be reinitiated once the device returns to reading array data, to ensure
data integrity.
Figure 6, on page 111 illustrates the algorithm for the erase operation. Refer to the Erase and Program Operations
table in the “AC Characteristics” on page 124 section for parameters, and Figure 18, on page 133 for timing
diagrams.
相关PDF资料 |
PDF描述 |
|---|---|
| S29GL032M10TAIR53 | CAP TANT 330UF 2.5V 20% POLY SMD |
| S29GL032M10TAIR60 | CAP TANT 470UF 4V 20% POLY SMD |
| S29GL032M10TAIR62 | CAP TANT 470UF 4V 20% POLY SMD |
| S29GL032M10TCCR22 | MirrorBit Flash Family |
| S29GL032M10TCCR23 | MirrorBit Flash Family |
相关代理商/技术参数 |
参数描述 |
|---|---|
| S29GL032M10TAIR53 | 制造商:SPANSION 制造商全称:SPANSION 功能描述:MirrorBit Flash Family |
| S29GL032M10TAIR60 | 制造商:SPANSION 制造商全称:SPANSION 功能描述:MirrorBit Flash Family |
| S29GL032M10TAIR62 | 制造商:SPANSION 制造商全称:SPANSION 功能描述:MirrorBit Flash Family |
| S29GL032M10TAIR63 | 制造商:SPANSION 制造商全称:SPANSION 功能描述:MirrorBit Flash Family |
| S29GL032M10TBCR00 | 制造商:SPANSION 制造商全称:SPANSION 功能描述:MirrorBit Flash Family |
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