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參數(shù)資料
| 型號： | S71PL129JC0BFW9Z2 |
| 廠商： | SPANSION LLC |
| 元件分類： | 存儲器 |
| 英文描述： | Stacked Multi-Chip Product (MCP) Flash Memory |
| 中文描述： | SPECIALTY MEMORY CIRCUIT, PBGA64 |
| 封裝： | 8 X 11.60 MM, 1.20 MM HEIGHT, LEAD FREE, FBGA-64 |
| 文件頁數(shù)： | 92/153頁 |
| 文件大?。?/td> | 3651K |
| 代理商： | S71PL129JC0BFW9Z2 |
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October 28, 2005 S71PL129Jxx_00_A8
S71PL129JC0/S71PL129JB0/S71PL129JA0
41
Advance
Informatio n
Hardware Data Protection
The command sequence requirement of unlock cycles for programming or erasing
provides data protection against inadvertent writes. In addition, the following
hardware data protection measures prevent accidental erasure or programming,
which might otherwise be caused by spurious system level signals during VCC
power-up and power-down transitions, or from system noise.
Low VCC Write Inhibit
When VCC is less than VLKO, the device does not accept any write cycles. This pro-
tects data during VCC power-up and power-down. The command register and all
internal program/erase circuits are disabled, and the device resets to the read
mode. Subsequent writes are ignored until VCC is greater than VLKO. The system
must provide the proper signals to the control pins to prevent unintentional writes
when VCC is greater than VLKO.
Write Pulse “Glitch” Protection
Noise pulses of less than 3 ns (typical) on OE#, CE1#, CE2# or WE# do not ini-
tiate a write cycle.
Logical Inhibit
Write cycles are inhibited by holding any one of OE# = VIL, CE1# = CE2# = VIH
or WE# = VIH. To initiate a write cycle, CE1# / CE2# and WE# must be a logical
zero while OE# is a logical one.
Power-Up Write Inhibit
If WE# = CE# (CE1#, CE2# in PL129J) = VIL and OE# = VIH during power up,
the device does not accept commands on the rising edge of WE#. The internal
state machine is automatically reset to the read mode on power-up.
Figure 3. Secured Silicon Sector Protect Verify
Write 60h to
any address
Write 40h to SecSi
Sector address
with A6 = 0,
A1 = 1, A0 = 0
START
RESET# =
VIH or VID
Wait 1
μs
Read from SecSi
Sector address
with A6 = 0,
A1 = 1, A0 = 0
If data = 00h,
SecSi Sector is
unprotected.
If data = 01h,
SecSi Sector is
protected.
Remove VIH or VID
from RESET#
Write reset
command
SecSi Sector
Protect Verify
complete
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| S71PL129JC0BFW9Z3 | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:Stacked Multi-Chip Product (MCP) Flash Memory |
| S71PL129N | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:256/128/128兆位(16/8/8米x16位元)的CMOS 3.0電壓只有同時讀/寫,頁面模式閃存 |
| S71PL129NB0 | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:MirrorBit MCPs |
| S71PL129NB0HAW5B0 | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:MirrorBit MCPs |
| S71PL129NB0HAW5B2 | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:MirrorBit MCPs |
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