- 您現在的位置：買賣IC網 > PDF目錄361793 > W78M32V90BM 8Mx32 Flash 3.3V Page Mode Simultaneous Read/Write Operation Multi-Chip Package PDF資料下載
參數資料
| 型號： | W78M32V90BM |
| 英文描述： | 8Mx32 Flash 3.3V Page Mode Simultaneous Read/Write Operation Multi-Chip Package |
| 中文描述： | 8Mx32閃光3.3V的頁面模式同步讀/寫操作多芯片封裝 |
| 文件頁數： | 19/54頁 |
| 文件大?。?/td> | 756K |
| 代理商： | W78M32V90BM |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁當前第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁
19
White Electronic Designs Corporation (602) 437-1520 www.wedc.com
White Electronic Designs
W78M32V-XBX
April 2006
Rev. 3
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
Persistent Protection Bit Lock
The Persistent Protection Bit (PPB) Lock is a volatile bit that
reflects the state of the Password Mode Locking Bit after
power-up reset. If the Password Mode Lock Bit is also set
after a hardware reset (RESET# asserted) or a power-up
reset, the ONLY means for clearing the PPB Lock Bit in
Password Protection Mode is to issue the Password Unlock
command. Successful execution of the Password Unlock
command clears the PPB Lock Bit, allowing for sector PPBs
modifications. Asserting RESET#, taking the device through
a power-on reset, or issuing the PPB Lock Bit Set command
sets the PPB Lock Bit to a “1” when the Password Mode
Lock Bit is not set.
If the Password Mode Locking Bit is not set, including
Persistent Protection Mode, the PPB Lock Bit is cleared
after power-up or hardware reset. The PPB Lock Bit is set
by issuing the PPB Lock Bit Set command. Once set the only
means for clearing the PPB Lock Bit is by issuing a hardware
or power-up reset. The Password Unlock command is
ignored in Persistent Protection Mode.
HIGH VOLTAGE SECTOR PROTECTION
Sector protection and unprotection may also be implemented
using programming equipment. The procedure requires
high voltage (V
ID
) to be placed on the RESET# pin. Refer
to
Figure 2
for details on this procedure. Note that for sector
unprotect, all unprotected sectors must first be protected
prior to the first sector write cycle.
相關PDF資料 |
PDF描述 |
|---|---|
| W78M32V-XBX | 8Mx32 Flash 3.3V Page Mode Simultaneous Read/Write Operation Multi-Chip Package |
| W78M64V-XSBX | Flash MCP |
| W7G1M32SVB120BNC | 8MB/4MB (2x1Mx32 / 1Mx32) CMOS, Boot Sector Flash Memory Module |
| W7G21M32SVT70BNI | 8MB/4MB (2x1Mx32 / 1Mx32) CMOS, Boot Sector Flash Memory Module |
| W7G21M32SVT90BNC | 8MB/4MB (2x1Mx32 / 1Mx32) CMOS, Boot Sector Flash Memory Module |
相關代理商/技術參數 |
參數描述 |
|---|---|
| W78M32VP110BM | 制造商:Microsemi Corporation 功能描述:W78M32VP110BM - Bulk |
| W78M32VP-110BM | 制造商:White Electronic Designs 功能描述:Flash Module Parallel 256Mbit |
| W78M32V-XBX | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:8Mx32 Flash 3.3V Page Mode Simultaneous Read/Write Operation Multi-Chip Package |
| W78M64VP110SBM | 制造商:Microsemi Corporation 功能描述:8MX64 FLASH 3.3V PAGE MODE - Bulk |
| W78M64V-XSBX | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Flash MCP |
發(fā)布緊急采購，3分鐘左右您將得到回復。