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參數資料
| 型號： | MAX31826MUA+T |
| 廠商： | Maxim Integrated |
| 文件頁數： | 1/22頁 |
| 文件大小： | 1648K |
| 描述： | IC TEMP SENSOR DIGITAL 8UMAX |
| 標準包裝： | 2,500 |
| 系列： | 1-Wire® |
| 功能： | 溫度監控系統（傳感器） |
| 傳感器類型： | 內部 |
| 感應溫度： | -55°C ~ 125°C |
| 精確度： | ±2°C |
| 拓撲： | 寄存器庫，變簽式暫存器 |
| 輸出類型： | 1-Wire? |
| 輸出警報： | 無 |
| 輸出風扇： | 無 |
| 電源電壓： | 3 V ~ 3.7 V |
| 工作溫度： | -55°C ~ 125°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) |
MAX31826
1-Wire Digital Temperature Sensor
with 1Kb Lockable EEPROM
? Maxim Integrated Products 1
General Description
The MAX31826 digital thermometer provides 12-bit
temperature measurements and communicates over a
1-Wire
M
bus that by definition requires only one data line
(and ground) for communication with a central microcon-
troller. It has a -55NC to +125NC operating temperature
range and is accurate to Q0.5NC over the -10NC to +85NC
range. In addition, the device can derive power directly
from the data line ( parasite power ), eliminating the
need for an external power supply.
Each device has a unique 64-bit serial code, which
allows multiple devices to function on the same 1-Wire
bus. Therefore, it is simple to use one microcontroller
(the master device) to control many devices distributed
over a large area. The device includes 128 bytes (1Kb)
of EEPROM for storage of system data. The EEPROM
can be locked to permanently prevent any further data
writes. Four location address inputs simplify mapping of
individual devices to specific locations.
Applications
Benefits and Features
S Unique 1-Wire Interface Requires Only One Port
Pin for Communication
S Integrated Temperature Sensor and EEPROM
Reduce Component Count
?Measures Temperatures from -55NC to +125NC
(-67NF to +257NF)
??.5NC Accuracy from -10NC to +85NC
?12-Bit Temperature Resolution (0.0625NC)
?1Kb EEPROM Can Be Locked to Prevent Further
Writes
S Multidrop Capability Simplifies Multisensor
Systems
?Each Device Has a Unique 64-Bit Serial Code
Stored in On-Board ROM
?Four Pin-Programmable Bits to Uniquely
Identify Up to 16 Sensor Locations on a Bus
S Can Be Powered from Data Line (3.0V to 3.7V
Power-Supply Range)
S 8-Pin 礛AX
?/DIV>
Package
Block Diagram
19-6264; Rev 0; 3/12
Ordering Information appears at end of data sheet.
For related parts and recommended products to use with this part,
refer to www.maxim-ic.com/MAX31826.related.
Industrial Systems
Building Automation
Consumer Equipment
System Calibration
Module Identification
1-Wire and 礛AX are registered trademarks of Maxim Integrated Products, Inc.
MAX31826
64-BIT ROM
AND
1-Wire PORT
PARASITE-
POWER
CIRCUIT
C
PP
V
PU
4.7k&
DQ
GND
V
DD
MEMORY
CONTROL LOGIC
SCRATCHPAD 1
1Kb
EEPROM
SCRATCHPAD 2
8-BIT CRC GENERATOR
16-BIT TEMPERATURE REGISTER
8-BIT CONFIGURATION REGISTER
ADDRESS PIN
INPUT LATCH
AD0 AD1 AD2 AD3
POWER-
SUPPLY
SENSE
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxims website at www.maxim-ic.com.
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