參數(shù)資料
型號： M34W02
廠商： 意法半導(dǎo)體
元件分類： DRAM
英文描述： 2Kbit Serial EEPROM with Software Data Protection(2Mb串行EEPROM)
中文描述： 2Kbit串行EEPROM與軟件數(shù)據(jù)保護(hù)（處理器串行EEPROM中）
文件頁數(shù)： 9/17頁
文件大小： 152K
代理商： M34W02
In this sequence, the address byte value is don’t
care and the Data byte is programmed in the
protect register. The write protection is activated by
putting the WC pin high (see Figure 9).
The Protect Register is a 8 bit EEPROM register
which contains a 7 bit row pointer (b6-b0) and 1 bit
(b7), named Top/Bottom. When using the Protect
Register, the EEPROM area will be divided in 2
different zone. The first zone is from location 00h
to the pointed row with its 16 bytes included.
The second zone is the rest of the memory to the
top. Depending on the value of bit 7 of the Protect
Register, it is possible to write protect the first zone
(b7=0) or the second zone (b7=1).
As a row is 16 bytes long, it is possible to write
protect from 16 bytes up to the entire 256 bytes with
a step of 16 bytes (see Figure 9).
The Protect Register contents can be write pro-
tected using the WC input pin (pin 7). When the WC
input is read at V
IH
, it ensures that the Protect
Register cannot be modified (device select code
0110xxxx not Acknowledged) and the write pro-
tected EEPROM area will behave as a ROM.
WRITE Cycle
in Progress
AI01963
Next
Operation is
Addressing the
Memory
START Condition
DEVICE SELECT
with RW = 0
ACK
Returned
YES
NO
YES
NO
ReSTART
STOP
Proceed
WRITE Operation
Proceed
Random Address
READ Operation
Send
Byte Address
First byte of instruction
with RW = 0 already
decoded by M34W02
Figure 7. Write Cycle Polling using ACK
9/17
M34W02
相關(guān)PDF資料
PDF描述
M35101 Contactless Memory Card IC 13.56MHz, 2048-bit High Endurance EEPROM(無觸點(diǎn)智能卡芯片)
M3541 Single Number Pulse Tone Switchable Dialer(脈沖語音開關(guān)撥號器)
M36DR432C 32 Mbit 2Mb x16, Dual Bank, Page Flash Memory and 4 Mbit 256K x16 SRAM, Multiple Memory Product
M36DR432D 32 Mbit 2Mb x16, Dual Bank, Page Flash Memory and 4 Mbit 256K x16 SRAM, Multiple Memory Product
M36L0R7040B0 128 Mbit (Multiple Bank, Multi-Level, Burst) Flash Memory and 16 Mbit PSRAM, 1.8V Supply, Multi-Chip Package
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M3-4X4MMFLT PH SS PS 制造商:MACHINE SCREWS 功能描述:
M35 制造商:LAUREL ELECTRONICS 功能描述:PANEL DISPLAY, PROCESS, LED, 10-30V, No. of Digits / Alpha:3-1/2, Meter Function:Process, Meter Range:-1999 to 9999, Digit Height:0.4", Panel Cutout Height:22.5mm, Panel Cutout Width:45mm, Supply Voltage Range:10V DC to 30V DC , RoHS Compliant: Yes
M-35 制造商:HSI Sensing 功能描述:ACTUATING MAGNET, .167(L) X .062(W) X .062(H)
M35 BHHTMCS100- 制造商:TR FASTENINGS 功能描述:SCREW SOCKET BUTT M3X5 制造商:TR FASTENINGS 功能描述:SCREW SOCKET, BUTT, M3X5 制造商:TR FASTENINGS 功能描述:SCREW SOCKET, BUTT, M3X5; Thread Size - Metric:M3; Screw Length:5mm; Fastener Material:Steel; Screw Head Style:Button; SVHC:No SVHC (19-Dec-2012); Driver Type:Hexagon; External Length / Height:5mm; Material:Steel; Thread Size: ;RoHS Compliant: Yes
M3-5 D1N965-A2 制造商:MACHINE SCREWS 功能描述:
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(jìn)入我的后臺，查看報(bào)價

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

*
*
*