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參數(shù)資料
| 型號： | DS28E04-100 |
| 元件分類： | DRAM |
| 英文描述： | 4096-Bit Addressable 1-Wire EEPROM with PIO |
| 中文描述： | 4096位、可尋址、1-Wire EEPROM，帶有PIO |
| 文件頁數(shù)： | 6/36頁 |
| 文件大?。?/td> | 347K |
| 代理商： | DS28E04-100 |
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DS28E04-100: 4096-Bit 1-Wire Addressable EEPROM with PIO
6 of 36
Figure 2. Hierarchical Structure for 1-Wire Protocol
DS28E04-100
Available
Commands:
Command
Level:
Data Field
Affected:
1-Wire ROM Function
Commands (see Figure 14)
DS28E04-Specific
Memory/Control Function
Commands (see Figure 9)
Read ROM
Match ROM
Search ROM
Conditional Search
ROM
Skip ROM
Resume
Overdrive Skip
Overdrive Match
Device ID, RC-Flag
Device ID, RC-Flag
Device ID, RC-Flag
Device ID, RC-Flag, PIO Status,
cond. Search Settings
RC-Flag
RC-Flag
RC-Flag, OD-Flag
Device ID, RC-Flag, OD-Flag
Write Scratchpad
Read Scratchpad
Copy Scratchpad
Read Memory
PIO Access Read
PIO Access Write
PIO Access Pulse
Reset Act. Latch
Write Register
32-byte Scratchpad, Flags
32-byte Scratchpad
Data Memory, Register Page
Data Memory, Registers
PIO Pins
PIO Pins, Activity Latch
PIO Pins, Activity Latch
Activity Latch
Conditional Search and Control
Registers
64-BIT DEVICE ID NUMBER (NETWORK ADDRESS)
Each DS28E04-100 has a unique device ID number that is 64 bits long, as shown in Figure 3. The first 8 bits are a
1-Wire family code. The next 8 bits are an external address byte, of which the lower 7 bits are connected to the
address input pins A0 to A6. This allows the user to set a portion of the Device ID Number by connecting some of
these pins to GND (logic 0) or to V
CC
(logic 1) or leaving them open (logic 1). The next 40 bits are a lasered serial
number. Even if multiple DS28E04-100 are used in a 1-Wire network and all address inputs are wired to the same
state or left open (unconnected), the unique 40-bit serialization field will prevent any address conflict, allowing to
communicate with each device individually. The last 8 bits are a lasered CRC (Cyclic Redundancy Check) of the
first 56 bits, assuming that the address input pins A0 to A6 are at logic 1. The 1-Wire CRC is generated using a
polynomial generator consisting of a shift register and XOR gates as shown in Figure 4. The polynomial is X
8
+ X
5
+
X
4
+ 1. Further information on the Device ID CRC is found in section
CRC Generation
near the end of this
document.
Figure 3. 64-Bit Device ID Number
MSB
LSB
8-Bit External
Address Input
A
5
4
MSB
8-Bit CRC
Code
40-Bit Lasered Serial Number
0
A
6
A
A
3
A
2
A
1
LSB
A
0
8-Bit Family Code
(1Ch)
MSB
LSB MSB
LSB
MSB
LSB
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS28E04S-100 | 4096-Bit Addressable 1-Wire EEPROM with PIO |
| DS3151 | Single/Dual/Triple/Quad DS3/E3/STS-1 LIUs |
| DS3151N | Single/Dual/Triple/Quad DS3/E3/STS-1 LIUs |
| DS3152 | Single/Dual/Triple/Quad DS3/E3/STS-1 LIUs |
| DS3152N | Single/Dual/Triple/Quad DS3/E3/STS-1 LIUs |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS28E04S100 | 制造商:Maxim Integrated Products 功能描述: |
| DS28E04S-100 | 功能描述:電可擦除可編程只讀存儲器 RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| DS28E04S-100/T | 功能描述:電可擦除可編程只讀存儲器 RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| DS28E04S-100+ | 功能描述:電可擦除可編程只讀存儲器 4096-Bit Addressable 1-Wire 電可擦除可編程只讀存儲器 w/PIO RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| DS28E04S-100+T | 功能描述:電可擦除可編程只讀存儲器 4096-Bit Addressable 1-Wire 電可擦除可編程只讀存儲器 w/PIO RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 |
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