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參數(shù)資料
| 型號： | 29C512 |
| 廠商： | Atmel Corp. |
| 英文描述： | 512K 64K x 8 5-volt Only CMOS Flash Memory |
| 中文描述： | 為512k 64KX8的5伏只有閃存的CMOS |
| 文件頁數(shù)： | 5/18頁 |
| 文件大?。?/td> | 284K |
| 代理商： | 29C512 |
5
0456H–FLASH–2/05
AT29C512
4.7
DATA Polling
The AT29C512 features DATA polling to indicate the end of a program cycle. During a program
cycle an attempted read of the last byte loaded will result in the complement of the loaded data
on I/O7. Once the program cycle has been completed, true data is valid on all outputs and the
next cycle may begin. DATA polling may begin at any time during the program cycle.
4.8
Toggle Bit
In addition to DATA polling the AT29C512 provides another method for determining the end of a
program or erase cycle. During a program or erase operation, successive attempts to read data
from the device will result in I/O6 toggling between one and zero. Once the program cycle has
completed, I/O6 will stop toggling and valid data will be read. Examining the toggle bit may begin
at any time during a program cycle.
4.9
Optional Chip Erase Mode
The entire device can be erased by using a 6-byte software code. Please see Software Chip
Erase application note for details.
5.
Absolute Maximum Ratings*
Temperature Under Bias................................ -55
°
C to +125
°
C
*NOTICE:
Stresses beyond those listed under “Absolute
Maximum Ratings” may cause permanent dam-
age to the device. This is a stress rating only and
functional operation of the device at these or any
other conditions beyond those indicated in the
operational sections of this specification is not
implied. Exposure to absolute maximum rating
conditions for extended periods may affect
device reliability.
Storage Temperature..................................... -65
°
C to +150
°
C
All Input Voltages
(including NC Pins)
with Respect to Ground...................................-0.6V to +6.25V
All Output Voltages
with Respect to Ground.............................-0.6V to V
CC
+ 0.6V
Voltage on OE
with Respect to Ground...................................-0.6V to +13.5V
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