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參數(shù)資料
| 型號： | S29AL008D90TAI020 |
| 廠商： | SPANSION LLC |
| 元件分類： | PROM |
| 英文描述： | 8 Megabit (1 M x 8-Bit/512 K x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory |
| 中文描述： | 512K X 16 FLASH 3V PROM, 90 ns, PDSO48 |
| 封裝： | MO-142BDD, TSOP-48 |
| 文件頁數(shù)： | 25/52頁 |
| 文件大小： | 2004K |
| 代理商： | S29AL008D90TAI020 |
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February 27, 2009 S29AL008D_00_A11
S29AL008D
31
Data
She e t
After the sector erase command sequence is written, the system should read the status on DQ7 (Data#
Polling) or DQ6 (Toggle Bit I) to ensure the device accepted the command sequence, and then read DQ3. If
DQ3 is 1, the internally controlled erase cycle started; all further commands (other than Erase Suspend) are
ignored until the erase operation is complete. If DQ3 is 0, the device accepts additional sector erase
commands. To ensure the command is accepted, the system software should check the status of DQ3 prior
to and following each subsequent sector erase command. If DQ3 is high on the second status check, the last
command might not be accepted. Table 9.1 shows the outputs for DQ3.
Notes
1. DQ5 switches to 1 when an Embedded Program or Embedded Erase operation exceeds the maximum timing limits. See DQ5: Exceeded
Timing Limits on page 30 for more information.
2. DQ7 and DQ2 require a valid address when reading status information. Refer to the appropriate subsection for further details.
10. Absolute Maximum Ratings
Notes
1. Minimum DC voltage on input or I/O pins is –0.5 V. During voltage transitions, input or I/O pins may undershoot VSS to –2.0 V for periods
of up to 20 ns. See Figure 11.1 on page 32. Maximum DC voltage on input or I/O pins is VCC +0.5 V. During voltage transitions, input or I/
2. Minimum DC input voltage on pins A9, OE#, and RESET# is –0.5 V. During voltage transitions, A9, OE#, and RESET# may undershoot
VSS to –2.0 V for periods of up to 20 ns. See Figure 11.1 on page 32. Maximum DC input voltage on pin A9 is +12.5 V which may
overshoot to 14.0 V for periods up to 20 ns.
3. No more than one output may be shorted to ground at a time. Duration of the short circuit should not be greater than one second.
4. Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only;
functional operation of the device at these or any other conditions above those indicated in the operational sections of this data sheet is
not implied. Exposure of the device to absolute maximum rating conditions for extended periods may affect device reliability.
Table 9.1 Write Operation Status
Operation
DQ7
DQ6
DQ5
DQ3
DQ2
RY/BY#
Standard
Mode
Embedded Program Algorithm
DQ7#
Toggle
0
N/A
No toggle
0
Embedded Erase Algorithm
0
Toggle
0
1
Toggle
0
Erase
Suspend
Mode
Reading within Erase
Suspended Sector
1
No toggle
0
N/A
Toggle
1
Reading within Non-Erase
Suspended Sector
Data
1
Erase-Suspend-Program
DQ7#
Toggle
0
N/A
0
Parameter
Rating
Storage Temperature Plastic Packages
–65
°C to +150°C
Ambient Temperature with Power Applied
–65
°C to +125°C
Voltage with Respect to Ground VCC (Note 1)
–0.5 V to +4.0 V
A9, OE#, and RESET# (Note 2)
–0.5 V to +12.5 V
All other pins (Note 1)
–0.5 V to VCC+0.5 V
Output Short Circuit Current (Note 3)
200 mA
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