參數(shù)資料
型號： S29PL127J70BFI000
廠商： SPANSION LLC
元件分類： PROM
英文描述： 8M X 16 FLASH 3V PROM, 70 ns, PBGA80
封裝： 11 X 8 MM, LEAD FREE, FBGA-80
文件頁數(shù)： 46/97頁
文件大?。?/td> 3042K
代理商： S29PL127J70BFI000
50
S29PL-J
S29PL-J_00_A10 September 7, 2007
Data
Sheet
(Adv an ce
Inf o r m a t io n)
13.3
Write Protect (WP#)
The Write Protect feature provides a hardware method of protecting the upper two and lower two sectors
without using VID. This function is provided by the WP# pin and overrides the previously discussed High
If the system asserts VIL on the WP#/ACC pin, the device disables program and erase functions in the two
outermost 4 Kword sectors on both ends of the flash array independent of whether it was previously protected
or unprotected.
If the system asserts VIH on the WP#/ACC pin, the device reverts the upper two and lower two sectors to
whether they were last set to be protected or unprotected. That is, sector protection or unprotection for these
sectors depends on whether they were last protected or unprotected using the method described in the High
Note that the WP#/ACC pin must not be left floating or unconnected; inconsistent behavior of the device may
result.
13.3.1
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.
13.4
High Voltage Sector Protection
Sector protection and unprotection may also be implemented using programming equipment. The procedure
requires high voltage (VID) to be placed on the RESET# pin. Refer to Figure 13.1 on page 51 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(guān)PDF資料
PDF描述
S29XS064R0PBHW010 4M X 16 FLASH 1.8V PROM, 80 ns, PBGA44
S2C3R-1-12-H 4000 MHz - 12000 MHz RF/MICROWAVE SGL POLE DOUBLE THROW SWITCH, 2 dB INSERTION LOSS
S2C5R-1-12-RC 4000 MHz - 18000 MHz RF/MICROWAVE SGL POLE DOUBLE THROW SWITCH, 2.8 dB INSERTION LOSS
S2H3R-1H 10 MHz - 1000 MHz RF/MICROWAVE SGL POLE DOUBLE THROW SWITCH, 1.2 dB INSERTION LOSS
S2L1R-RC 1000 MHz - 2000 MHz RF/MICROWAVE SGL POLE DOUBLE THROW SWITCH, 0.9 dB INSERTION LOSS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
S29PL127J70TAI130 制造商:Spansion 功能描述: 制造商:Spansion 功能描述:FLASH PARALLEL 3V/3.3V 128MBIT 8MX16 70NS 56TSOP - Trays
S29PL127J70TFI130 制造商:Spansion 功能描述:FLASH PARALLEL 3V/3.3V 128MBIT 8MX16 70NS 56TSOP - Trays
S29PL127J70TFI131 制造商:Spansion 功能描述:FLASH PARALLEL 3V/3.3V 128MBIT 8MX16 70NS 56TSOP - Rail/Tube
S29PL127J70TFI132 制造商:Spansion 功能描述:FLASH PARALLEL 3V/3.3V 128MBIT 8MX16 70NS 56TSOP - Tape and Reel
S29PL127J70TFI133 制造商:Spansion 功能描述:FLASH PARALLEL 3V/3.3V 128MBIT 8MX16 70NS 56TSOP - Tape and Reel
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*