參數(shù)資料
型號: AM75PDL193CHH70I
廠商: SPANSION LLC
元件分類: 存儲器
英文描述: 128 Megabit (8 M x 16-Bit) CMOS 3.0 Volt-only, Simultaneous Read/Write Flash Memory
中文描述: SPECIALTY MEMORY CIRCUIT, PBGA73
封裝: FBGA-73
文件頁數(shù): 44/136頁
文件大?。?/td> 1250K
代理商: AM75PDL193CHH70I
42
Am75PDL191CHH/Am75PDL193CHH
February 5, 2004
A D V A N C E I N F O R M A T I O N
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 com-
mand. 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 Persis-
tent Protection Mode.
High Voltage Sector Protection
Sector protection and unprotection may also be imple-
mented using programming equipment. The proce-
dure requires high voltage (V
ID
) to be placed on the
RESET# pin. Refer to Figure 1 for details on this pro-
cedure. Note that for sector unprotect, all unprotected
sectors must first be protected prior to the first sector
write cycle.
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