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参数资料
| 型号： | M29F002BB45K1 |
| 厂商： | 意法半导体 |
| 英文描述： | 2 Mbit 256Kb x8, Boot Block Single Supply Flash Memory |
| 中文描述： | 2兆位的256Kb × 8，启动座单电源闪存 |
| 文件页数： | 10/22页 |
| 文件大小： | 189K |
| 代理商： | M29F002BB45K1 |
M29F002BT, M29F002BB, M29F002BNT, M29F002BNB
10/22
Figure 5. Data Polling Flowchart
READ DQ5 & DQ7
at VALID ADDRESS
START
READ DQ7
at VALID ADDRESS
FAIL
PASS
AI03598
D=
DATA
YES
NO
YES
NO
DQ5
= 1
D=
DATA
YES
NO
Figure 6. Data Toggle Flowchart
READ DQ6
START
READ DQ6
TWICE
FAIL
PASS
AI01370B
D=
TOGGLE
NO
NO
YES
YES
DQ5
= 1
NO
YES
D=
TOGGLE
READ
DQ5 & DQ6
Erase Timer Bit (DQ3).
The Erase Timer Bit can
be used to identify the start of Program/Erase
Controller operation during a Block Erase com-
mand. Once the Program/Erase Controller starts
erasing the Erase Timer Bit is set to ’1’. Before the
Program/Erase Controller starts the Erase Timer
Bit is set to ’0’ and additional blocks to be erased
may be written to the Command Interface. The
Erase Timer Bit is output on DQ3 when the Status
Register is read.
Alternative Toggle Bit (DQ2).
The
Toggle Bit can be used to monitor the Program/
Erase controller during Erase operations. The Al-
ternative Toggle Bit is output on DQ2 when the
Status Register is read.
During Chip Erase and Block Erase operations the
Toggle Bit changes from ’0’ to ’1’ to ’0’, etc., with
successive Bus Read operations from addresses
Alternative
within the blocks being erased. Once the operation
completes the memory returns to Read mode.
During Erase Suspend the Alternative Toggle Bit
changes from ’0’ to ’1’ to ’0’, etc. with successive
Bus Read operations from addresses within the
blocks being erased. Bus Read operations to ad-
dresses within blocks not being erased will output
the memory cell data as if in Read mode.
After an Erase operation that causes the Error Bit
to be set the Alternative Toggle Bit can be used to
identify which block or blocks have caused the er-
ror. The Alternative Toggle Bit changes from ’0’ to
’1’ to ’0’, etc. with successive Bus Read Opera-
tions from addresses within blocks that have not
erased correctly. The Alternative Toggle Bit does
not change if the addressed block has erased cor-
rectly.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| M29F002BB45K1T | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:2 Mbit 256Kb x8, Boot Block Single Supply Flash Memory |
| M29F002BB45K3 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:2 Mbit 256Kb x8, Boot Block Single Supply Flash Memory |
| M29F002BB45K3T | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:2 Mbit 256Kb x8, Boot Block Single Supply Flash Memory |
| M29F002BB45K6 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:2 Mbit 256Kb x8, Boot Block Single Supply Flash Memory |
| M29F002BB45K6T | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:2 Mbit 256Kb x8, Boot Block Single Supply Flash Memory |
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