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參數資料
| 型號： | DS28EA00U+T&R |
| 廠商： | Maxim Integrated |
| 文件頁數： | 7/29頁 |
| 文件大小： | 328K |
| 描述： | IC THERMOMETER 1-WIRE 8-USOP |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 3,000 |
| 功能： | 溫度計，恒溫計 |
| 傳感器類型： | 內部 |
| 感應溫度： | -40°C ~ 85°C |
| 精確度： | ±0.5°C（最小值） |
| 拓撲： | 寄存器庫，變簽式暫存器 |
| 輸出類型： | 數字 |
| 輸出警報： | 是 |
| 輸出風扇： | 無 |
| 電源電壓： | 3 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-TSSOP，8-MSOP（0.118"，3.00mm 寬） |
| 供應商設備封裝： | 8-uMAX |
| 包裝： | 帶卷 (TR) |
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1-Wire Digital Thermometer with
Sequence Detect and PIO
DS28EA00
Maxim Integrated
7
MSB
8-BIT
CRC CODE
48-BIT SERIAL NUMBER
MSB
MSB
LSB
LSB
LSB
8-BIT FAMILY CODE
(42h)
MSB
LSB
Figure 2. 64-Bit Registration Number
1ST
STAGE
2ND
STAGE
3RD
STAGE
4TH
STAGE
7TH
STAGE
8TH
STAGE
6TH
STAGE
5TH
STAGE
X
0
X
1
X
2
X
3
X
4
POLYNOMIAL = X
8
+ X
5
+ X
4
+ 1
INPUT DATA
X
5
X
6
X
7
X
8
Figure 3. 1-Wire CRC Generator
SCRATCHPAD (POWER-UP STATE)
BYTE
ADDRESS
TEMPERATURE LSB (50h)
0
TEMPERATURE MSB (05h)
1
TH REGISTER OR USER BYTE 1*
2
TL REGISTER OR USER BYTE 2*
*POWER-UP STATE DEPENDS ON VALUE(S) STORED IN EEPROM.
3
CONFIGURATION REGISTER*
4
RESERVED (FFh)
5
RESERVED (0Ch)
6
RESERVED (10h)
BACKUP EEPROM
N/A
N/A
TH REGISTER OR USER BYTE 1
TL REGISTER OR USER BYTE 2
CONFIGURATION REGISTER
N/A
N/A
N/A
7
Figure 4. Memory Map
Memory Description
The memory map of the DS28EA00 is shown in Figure 4.
It consists of an 8-byte scratchpad and 3 bytes of back-
up EEPROM. The first 2 bytes form the Temperature
Readout register, which is updated after a temperature
conversion and is read only. The next 3 bytes are user-
writable; they contain the Temperature High (TH) and the
Temperature Low (TL) Alarm register and a Configuration
register. The remaining 3 bytes are reserved. They
power up with constant data and cannot be written by
the user. The TH, TL, and Configuration register data in
the scratchpad control the resolution of a temperature
conversion and decide whether a temperature is consid-
ered as alarming. TH, TL, and Configuration can be
copied to the EEPROM to become nonvolatile. The
scratchpad is automatically loaded with EEPROM data
when the DS28EA00 powers up.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| DS28EC20 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:DS28EC20_1203 |
| DS28EC20 T | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:DS28EC20_1203 |
| DS28EC20_11 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:20Kb 1-Wire EEPROM |
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| DS28EC20+ | 功能描述:電可擦除可編程只讀存儲器 20Kb 1-Wire 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 數據保留: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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