- 您现在的位置：买卖IC网 > PDF目录359119 > M95080-WMB3T (意法半导体) 16Kbit and 8Kbit Serial SPI Bus EEPROM With High Speed Clock PDF资料下载
参数资料
| 型号： | M95080-WMB3T |
| 厂商： | 意法半导体 |
| 元件分类： | DRAM |
| 英文描述： | 16Kbit and 8Kbit Serial SPI Bus EEPROM With High Speed Clock |
| 中文描述： | 16Kbit和8Kbit SPI总线串行EEPROM的高速时钟 |
| 文件页数： | 16/39页 |
| 文件大小： | 590K |
| 代理商： | M95080-WMB3T |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页当前第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页
M95640, M95320
16/39
Table 5. Protection Modes
Note: 1. As defined by the values in the Block Protect (BP1, BP0) bits of the Status Register, as shown in Table 3.
The protection features of the device are summa-
rized in Table 3.
When the Status Register Write Disable (SRWD)
bit of the Status Register is 0 (its initial delivery
state), it is possible to write to the Status Register
provided that the Write Enable Latch (WEL) bit has
previously been set by a Write Enable (WREN) in-
struction, regardless of the whether Write Protect
(W) is driven High or Low.
When the Status Register Write Disable (SRWD)
bit of the Status Register is set to 1, two cases
need to be considered, depending on the state of
Write Protect (W):
– If Write Protect (W) is driven High, it is possible
to write to the Status Register provided that the
Write Enable Latch (WEL) bit has previously
been set by a Write Enable (WREN) instruction.
– If Write Protect (W) is driven Low, it is
not
pos-
sible to write to the Status Register
even
if the
Write Enable Latch (WEL) bit has previously
been set by a Write Enable (WREN) instruction.
(Attempts to write to the Status Register are re-
jected, and are not accepted for execution). As
a consequence, all the data bytes in the memo-
ry area that are software protected (SPM) by the
Block Protect (BP1, BP0) bits of the Status Reg-
ister, are also hardware protected against data
modification.
Regardless of the order of the two events, the
Hardware Protected Mode (HPM) can be entered:
– by setting the Status Register Write Disable
(SRWD) bit after driving Write Protect (W) Low
– or by driving Write Protect (W) Low after setting
the Status Register Write Disable (SRWD) bit.
The only way to exit the Hardware Protected Mode
(HPM) once entered is to pull Write Protect (W)
High.
If Write Protect (W) is permanently tied High, the
Hardware Protected Mode (HPM) can never be
activated, and only the Software Protected Mode
(SPM), using the Block Protect (BP1, BP0) bits of
the Status Register, can be used.
Table 6. Address Range Bits
Note: 1.
b15 to b13 are Don’t Care on the M95640.
b15 to b12 are Don’t Care on the M95320.
W
Signal
SRWD
Bit
Mode
Write Protection of the
Status Register
Memory Content
Protected Area
1
Unprotected Area
1
1
0
Software
Protected
(SPM)
Status Register is
Writable (if the WREN
instruction has set the
WEL bit)
The values in the BP1
and BP0 bits can be
changed
Write Protected
Ready to accept Write
instructions
0
0
1
1
0
1
Hardware
Protected
(HPM)
Status Register is
Hardware write protected
The values in the BP1
and BP0 bits cannot be
changed
Write Protected
Ready to accept Write
instructions
Device
M95640
M95320
Address Bits
A12-A0
A11-A0
相关PDF资料 |
PDF描述 |
|---|---|
| M95080-WMB6 | 16Kbit and 8Kbit Serial SPI Bus EEPROM With High Speed Clock |
| M95080-WMB6T | 16Kbit and 8Kbit Serial SPI Bus EEPROM With High Speed Clock |
| M95080-WMN3T | 64/32/16/8 Kbit Serial SPI Bus EEPROM With High Speed Clock |
| M95080-WMN5T | 64/32/16/8 Kbit Serial SPI Bus EEPROM With High Speed Clock |
| M95080-WMN6 | 16Kbit and 8Kbit Serial SPI Bus EEPROM With High Speed Clock |
相关代理商/技术参数 |
参数描述 |
|---|---|
| M95080-WMB6TG | 功能描述:电可擦除可编程只读存储器 2.5 V to 5.5V 8K RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
| M95080-WMN3 | 功能描述:电可擦除可编程只读存储器 5.5V 8K (1Kx8) RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
| M95080-WMN3T | 功能描述:电可擦除可编程只读存储器 5.5V 8K (1Kx8) RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
| M95080-WMN3TP | 制造商:STMicroelectronics 功能描述: |
| M95080-WMN3TP/S | 制造商:STMicroelectronics 功能描述:EEPROM Serial-SPI 8K-Bit 1K x 8 3.3V/5V 8-Pin SO N T/R 制造商:ST 功能描述:16 Kbit and 8 Kbit serial SPI bus EEPROM with high speed clock |
发布紧急采购，3分钟左右您将得到回复。