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參數資料
| 型號： | X24645S8M-2.7 |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Isolated Flyback Switching Regulator with 9V Output |
| 中文描述： | 隔離反激式開關穩(wěn)壓9V輸出 |
| 文件頁數： | 10/18頁 |
| 文件大?。?/td> | 84K |
| 代理商： | X24645S8M-2.7 |
X24645
10
Block Protect Bits
The Block Protect Bits BP0 and BP1 determine which
blocks of the memory are write-protected:
Programmable Hardware Write Protect
The Write Protect (WP) pin and the Write Protect
Enable (WPEN) bit in the Write Protect Register
control the programmable hardware write protect
feature. Hardware write protection is enabled when the
WP pin is HIGH and the WPEN bit is “1”, and disabled
when either the WP pin is LOW or the WPEN bit is “0”.
When the chip is hardware write-protected, nonvolatile
writes are disabled to the Write Protect Register,
including the BP bits and the WPEN bit itself, as well
as to block-protected sections in the memory array.
Only the sections of the memory array that are not
block-protected can be written. Note that since the
WPEN bit is write-protected, it cannot be changed
back to a LOW state, and write protection is disabled
as long as the the WP pin is held HIGH. Table 2
defines the write protection status for each state of
WPEN and WP.
Table 1. Block Protect Bits
2783 FRM T02
BP1
0
1
BP0
0
1
0
Protected
Addresses
None
1800h–1FFFh
1000h–1FFFh
Upper 1/4
Upper 1/2
Full Array (WPR
not included)
1
1
0000h–1FFFh
Table 2. Write Protect Status Table
2783 FRM T03.1
WP
L
X
H
WPEN
X
0
1
Memory Array
(Not Block
Protected)
Writable
Writable
Writable
Memory Array
(Block Protected)
Protected
Protected
Protected
BP Bits
Writable
Writable
Protected
WPEN Bit
Writable
Writable
Protected
相關PDF資料 |
PDF描述 |
|---|---|
| X24645SI | Voltage Regulator IC; Leaded Process Compatible:Yes; Peak Reflow Compatible (260 C):Yes |
| X24645SM | Voltage Regulator IC; Leaded Process Compatible:Yes; Peak Reflow Compatible (260 C):Yes |
| X24645V | Voltage Regulator IC; Leaded Process Compatible:Yes; Peak Reflow Compatible (260 C):Yes |
| X24645VI | Voltage Regulator IC; Leaded Process Compatible:Yes; Peak Reflow Compatible (260 C):Yes |
| X24645VM | Voltage Regulator IC; Leaded Process Compatible:Yes; Peak Reflow Compatible (260 C):Yes RoHS Compliant: Yes |
相關代理商/技術參數 |
參數描述 |
|---|---|
| X24645S8MG | 制造商:ICMIC 制造商全稱:IC MICROSYSTEMS 功能描述:Advanced 2-Wire Serial E2PROM with Block LockTM Protection |
| X24645S8MG-2.7 | 制造商:ICMIC 制造商全稱:IC MICROSYSTEMS 功能描述:Advanced 2-Wire Serial E2PROM with Block LockTM Protection |
| X24645SG | 制造商:ICMIC 制造商全稱:IC MICROSYSTEMS 功能描述:Advanced 2-Wire Serial E2PROM with Block LockTM Protection |
| X24645SG-2.7 | 制造商:ICMIC 制造商全稱:IC MICROSYSTEMS 功能描述:Advanced 2-Wire Serial E2PROM with Block LockTM Protection |
| X24645SI | 制造商:ICMIC 制造商全稱:IC MICROSYSTEMS 功能描述:Advanced 2-Wire Serial E2PROM with Block LockTM Protection |
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