參數(shù)資料
型號: MIC281-7BM6 TR
廠商: Micrel Inc
文件頁數(shù): 7/14頁
文件大?。?/td> 657K
描述: IC SUPERVISOR THERMAL SOT23-6
標(biāo)準(zhǔn)包裝: 3,000
系列: IttyBitty®
功能: 溫度監(jiān)控系統(tǒng)(傳感器)
傳感器類型: 外部
感應(yīng)溫度: 外部傳感器
精確度: ±3°C(最小值)
拓?fù)洌?/td> ADC,寄存器庫
輸出類型: I²C?/SMBus?
輸出警報(bào):
輸出風(fēng)扇:
電源電壓: 3 V ~ 3.6 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: SOT-23-6
供應(yīng)商設(shè)備封裝: SOT-23-6
包裝: 帶卷 (TR)
其它名稱: MIC281-7BM6TR
MIC281-7BM6TR-ND
icrel, Inc.
MIC281
 
 
pril 23, 2014
7
Revision 2.0
 
Functional Description
Serial Port Operation
The MIC281 uses standard SMBus Write_Byte and Read_Byte operations for communication with its host. The SMBus
Write_Byte operation involves sending the devices slave address (with the R/W bit low to signal a write operation),
followed by a command byte and the data byte. The SMBus Read_Byte operation is a composite write and read
operation: the host rst sends the devices slave address followed by the command byte, as in a write operation. A new
start bit must then be sent to the MIC281, followed by a repeat of the slave address with the R/W bit (LSB) set to the high
(read) state. The data to be read from the part may then be clocked out. These protocols are shown in Figures 1 and 2.
The Command byte is eight bits (one byte) wide. This byte carries the address of the MIC281 register to be operated
upon. The command byte values corresponding to the various MIC281 registers are shown in Table 1. Other command
byte values are reserved, and should not be used. 
 
Figure 1. Write_Byte Protocol
 
 
Figure 2. Read_Byte Protocol
 
Table 1. MIC281 Register Addresses
Target Register
Command Byte Value
Power-on Default
Label
Description
Read
Write
 
TEMP
Remote temperature result
01
h
 
N/A
00
h
 (0癈)
CONFIG
Configuration
03
h
 
03
h
 
80
h
 
MFG_ID
Manufacturer identification
FE
h
 
N/A
2A
h
 
DEV_ID
Device and revision identification
FF
h
 
N/A
0x
h
(10)
 
Note:
10. The lower nibble contains the die revision level (e.g., Rev. 0 = 00h).
 
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