參數(shù)資料
型號(hào)： M50LPW041N1T
廠商： 意法半導(dǎo)體
英文描述： 4 Mbit 512Kb x8, Uniform Block 3V Supply Low Pin Count Flash Memory
中文描述： 4兆位512KB的× 8，統(tǒng)一座3V電源低引腳數(shù)快閃記憶體
文件頁(yè)數(shù)： 16/37頁(yè)
文件大?。?/td> 268K
代理商： M50LPW041N1T
M50LPW041
16/37
See Table 16 for details on the bit definitions of the
Lock Registers.
Write Lock.
The Write Lock Bit determines
whether the contents of the Block can be modified
(using the Program or Block Erase Command).
When the Write Lock Bit is set, ‘1’, the block is
write protected; any operations that attempt to
change the data in the block will fail and the Status
Register will report the error. When the Write Lock
Bit is reset, ‘0’, the block is not write protected
through the Lock Register and may be modified
unless write protected through some other means.
If Top Block Lock, TBL, is Low, V
IL
, then the Top
Block (Block 7) is write protected and cannot be
modified. Similarly, if Write Protect, WP, is Low,
V
IL
, then the Main Blocks (Blocks 0 to 6) are write
protected and cannot be modified.
After power-up or reset the Write Lock Bit is al-
ways set to ‘1’ (write protected).
Read Lock.
The Read Lock bit determines
whether the contents of the Block can be read
(from Read mode). When the Read Lock Bit is set,
‘1’, the block is read protected; any operation that
attempts to read the contents of the block will read
00h instead. When the Read Lock Bit is reset, ‘0’,
read operations in the Block return the data pro-
grammed into the block as expected.
After power-up or reset the Read Lock Bit is al-
ways reset to ‘0’ (not read protected).
Lock Down.
The Lock Down Bit provides a
mechanism for protecting software data from sim-
ple hacking and malicious attack. When the Lock
Down Bit is set, ‘1’, further modification to the
Write Lock, Read Lock and Lock Down Bits cannot
be performed. A reset or power-up is required be-
fore changes to these bits can be made. When the
Lock Down Bit is reset, ‘0’, the Write Lock, Read
Lock and Lock Down Bits can be changed.
General Purpose Input Register
The General Purpose Input Register holds the
state of the General Purpose Input pins, GPI0-
GPI4. When this register is read, the state of these
pins is returned. This register is read-only and writ-
ing to it has no effect.
The signals on the General Purpose Input pins
should remain constant throughout the whole Bus
Read cycle in order to guarantee that the correct
data is read.
相關(guān)PDF資料
PDF描述
M50LPW041N 4 Mbit 512Kb x8, Uniform Block 3V Supply Low Pin Count Flash Memory
M50LPW041K 4 Mbit 512Kb x8, Uniform Block 3V Supply Low Pin Count Flash Memory
M50LPW041 4 Mbit 512Kb x8, Uniform Block 3V Supply Low Pin Count Flash Memory
M50LPW080N1TG 8 Mbit 1Mb x8, Uniform Block 3V Supply Low Pin Count Flash Memory
M50LPW080N1 8 Mbit 1Mb x8, Uniform Block 3V Supply Low Pin Count Flash Memory
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M50LPW080 制造商:STMicroelectronics 功能描述:
M50LPW080K 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8 Mbit 1Mb x8, Uniform Block 3V Supply Low Pin Count Flash Memory
M50LPW080K1 功能描述:閃存 3.6V 8M (1Mx8) RoHS:否 制造商:ON Semiconductor 數(shù)據(jù)總線寬度:1 bit 存儲(chǔ)類型:Flash 存儲(chǔ)容量:2 MB 結(jié)構(gòu):256 K x 8 定時(shí)類型: 接口類型:SPI 訪問(wèn)時(shí)間: 電源電壓-最大:3.6 V 電源電壓-最小:2.3 V 最大工作電流:15 mA 工作溫度:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體: 封裝:Reel
M50LPW080K1G 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8 Mbit 1Mb x8, Uniform Block 3V Supply Low Pin Count Flash Memory
M50LPW080K1T 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8 Mbit 1Mb x8, Uniform Block 3V Supply Low Pin Count Flash Memory
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