- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄97868 > DS2430A (DALLAS SEMICONDUCTOR) 32 X 8 1-WIRE SERIAL EEPROM, PBCY3 PDF資料下載
參數(shù)資料
| 型號(hào)： | DS2430A |
| 廠(chǎng)商： | DALLAS SEMICONDUCTOR |
| 元件分類(lèi)： | Programmable ROM |
| 英文描述： | 32 X 8 1-WIRE SERIAL EEPROM, PBCY3 |
| 封裝： | TO-92, 3 PIN |
| 文件頁(yè)數(shù)： | 12/16頁(yè) |
| 文件大小： | 357K |
| 代理商： | DS2430A |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)當(dāng)前第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)
DS2430A
5 of 16
102199
MEMORY
The memory of the DS2430A consists of three separate sections, called data memory, application register
and status register (Figure 5). The data memory and the application register each has its own intermediate
storage area called scratchpad that acts as a buffer when writing to the device. The data memory can be
read and written as often as desired. The application register, however, is one-time programmable only.
Once the application register is programmed, it is automatically write protected. The status register will
indicate if the application register is already locked or if it is still available for storing data. As long as the
application register is unprogrammed, the status register will read FFh. Copying data from the register
scratchpad to the application register will clear the 2 least significant bits of the status register, yielding a
FCh the next time one reads the status register.
DS2430A MEMORY MAP Figure 5
MEMORY FUNCTION COMMANDS
The “Memory Function Flow Chart” (Figure 6) describes the protocols necessary for accessing the
different memory sections of the DS2430A. An example is shown later in this document.
WRITE SCRATCHPAD [0Fh]
After issuing the Write Scratchpad command, the master must first provide a 1-byte address, followed by
the data to be written to the scratchpad for the data memory. The DS2430A will automatically increment
the address after every byte it received. After having received a data byte for address 1Fh, the address
counter will wrap around to 00h for the next byte and writing continues until the master sends a reset
pulse.
READ SCRATCHPAD [AAh]
This command is used to verify data previously written to the scratchpad before it is copied into the final
storage EEPROM memory. After issuing the Read Scratchpad command, the master must provide the 1-
byte starting address from where data is to be read. The DS2430A will automatically increment the
address after every byte read by the master. After the data of address 1Fh has been read, the address
counter will wrap around to 00h for the next byte and reading continues until the master sends a reset
pulse.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS2430AX | 32 X 8 1-WIRE SERIAL EEPROM, UUC2 |
| DS2432P/T&R | 1K X 1 1-WIRE SERIAL EEPROM, PDSO6 |
| DS2432X | 1K X 1 1-WIRE SERIAL EEPROM, PBGA6 |
| DS2432P | 1K X 1 1-WIRE SERIAL EEPROM, PDSO6 |
| DS2433 | 512 X 8 1-WIRE SERIAL EEPROM, PBCY3 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS2430A R | 制造商:MAXIM 制造商全稱(chēng):Maxim Integrated Products 功能描述:256-Bit 1-Wire EEPROM |
| DS2430A T | 制造商:MAXIM 制造商全稱(chēng):Maxim Integrated Products 功能描述:256-Bit 1-Wire EEPROM |
| DS2430A/R | 制造商:DALLAS 制造商全稱(chēng):Dallas Semiconductor 功能描述:256-Bit 1-Wire EEPROM |
| DS2430A/T | 制造商:DALLAS 制造商全稱(chēng):Dallas Semiconductor 功能描述:256-Bit 1-Wire EEPROM |
| DS2430A/T&R | 制造商:Maxim Integrated Products 功能描述:IC EEPROM 256BIT TO92-3 |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。