參數(shù)資料
型號(hào)： M38020M2D192FP
廠商： Mitsubishi Electric Corporation
英文描述： Single Output LDO, 800mA, Fixed(2.5V), Internal Current limit, Thermal Overload Protection 8-SON -40 to 125
中文描述： 8位單片機(jī)
文件頁(yè)數(shù)： 28/28頁(yè)
文件大?。?/td> 2389K
代理商： M38020M2D192FP
2005 Microchip Technology Inc.
DS21166J-page 9
24AA52/24LCS52
6.0
WRITE PROTECTION
The 24XXX52 has a software write-protect feature that
allows the lower half of the array (addresses 00h-7Fh)
to be permanently write-protected, as well as a WP pin
that can be used to protect the entire array.
6.1
Software Write-Protect
The software write-protect feature is invoked by writing
to the write-protect register. This is done by sending a
command similar to a normal Write command. As shown
in Figure 6-1, the write-protect register is written by
sending a Write command with the slave address set to
‘0110’ instead of ‘1010’ and the address bits and data
bits are “don’t cares.” Once the software write-protect
register
has
been
written,
the
device
will
not
acknowledge the ‘0110’ control byte.
FIGURE 6-1:
SETTING WRITE-PROTECT REGISTER
6.2
Resetting the Software
Write-Protect Fuse
It is possible to reset the software write-protect feature
on the 24XXX52. This is done by sending a command
similar to setting the software write-protect command,
except the command is sent before the regular control
byte and is ‘1001’ . The full command will be shown in
Figure 6-2. In order for the command to work, a voltage
of Vcc + 5.5V must be applied to the WP pin and must
be sustained for 1
μS before the command is given. The
customer should also allow for a 5 ms delay after the
Stop bit for TWC.
S
P
Bus Activity
Master
SDA Line
Bus Activity
S
T
A
R
T
S
T
O
P
Control
Byte
Word
Address
Data
A
C
K
A
C
K
A
C
K
00
1
相關(guān)PDF資料
PDF描述
M38020M2D192FS Single Output LDO, 800mA, Fixed(2.5V), Internal Current limit, Thermal Overload Protection 8-SON -40 to 125
M38020M2D192SP Single Output LDO, 800mA, Fixed(2.5V), Internal Current limit, Thermal Overload Protection 3-TO-220 -40 to 125
M38020M2D192SS Single Output LDO, 800mA, Fixed(2.5V), Internal Current limit, Thermal Overload Protection 3-PFM -40 to 125
M38020M3D192FP Single Output LDO, 800mA, Fixed(3.3), Internal Current limit, Thermal Overload Protection 4-SOT-223 0 to 125
M38020M3D192FS Single Output LDO, 800mA, Fixed(3.3), Internal Current limit, Thermal Overload Protection 4-SOT-223 0 to 125
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M38022M4472FP 制造商:Renesas Electronics Corporation 功能描述:M16C FLASH 256K/20K, 24MHZ,DMA,I2C,IEBU - Trays
M38022M4-472FP 制造商:Renesas Electronics Corporation 功能描述:M16C FLASH 256K/20K, 24MHZ,DMA,I2C,IEBU - Trays
M38022M4-472FP#U0 制造商:Renesas Electronics Corporation 功能描述:M16C FLASH 256K/20K, 24MHZ,DMA,I2C,IEBU - Trays
M38027E8FP 制造商:Renesas Electronics Corporation 功能描述:M16C FLASH 256K/20K, 24MHZ,DMA,I2C,IEBU - Trays
M38027E8FP#U0 制造商:Renesas Electronics Corporation 功能描述:M16C FLASH 256K/20K, 24MHZ,DMA,I2C,IEBU -LEAD FREE VERSION - Trays
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*