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參數(shù)資料
| 型號： | MAX6604ATA+TW |
| 廠商： | Maxim Integrated |
| 文件頁數(shù)： | 6/15頁 |
| 文件大?。?/td> | 172K |
| 描述： | IC TEMP SENSOR DDR MEMORY 8TDFN |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 功能： | 溫度監(jiān)控系統(tǒng)（傳感器），DIMM DDR 內(nèi)存 |
| 傳感器類型： | 內(nèi)部 |
| 感應(yīng)溫度： | -20°C ~ 125°C |
| 精確度： | ±3°C（最小值） |
| 輸出類型： | 2 線串行，I²C?/SMBUS? |
| 輸出警報： | 是 |
| 輸出風(fēng)扇： | 無 |
| 電源電壓： | 2.7 V ~ 3.6 V |
| 工作溫度： | -20°C ~ 125°C |
| 安裝類型： | * |
| 封裝/外殼： | * |
| 供應(yīng)商設(shè)備封裝： | * |
| 包裝： | * |
Device Addressing
The temperature sensor is accessed through the
SMBus/I
2
C bus using an 8-bit address. The tempera-
ture sensor address begins with 0011 and is followed
by the logic states of the A2, A1, and A0 inputs. These
inputs must be hardwired to either GND or V
CC
. The
three address inputs set the bus address for the tem-
perature sensor to allow up to eight devices on one
bus. The 8th bit (R/W) dictates a read or write opera-
tion. Set the R/W bit low for a write operation and set
the R/W bit high for a read operation. See Table 1 for a
summary of the device address.
Temperature Sensor
The thermal sensor continuously monitors the tempera-
ture and records the temperature data at least eight
times per second. Temperature data is latched internal-
ly by the MAX6604 and can be read by software from
the bus host at any time.
Access to the temperature sensor is through the slave
ID of 0011-A2-A1-A0-0. The I
2
C address-selection
inputs (A2, A1, A0) allow up to eight such devices to
coexist on the same bus. Consequently, eight memory
modules can be supported, given each module has
one such slave device address slot.
Upon application of power, the MAX6604s configuration
registers are set to their default values. Table 2 lists the
various temperature registers and their default states.
Note that all registers are 16 bits in length.
Precision Temperature Monitor for
DDR Memory Modules
6 _______________________________________________________________________________________
Write Word Format
Read Word Format
Slave Address: equivalent
to chip-select line of a
3-wire interface
Command Byte: selects
to which register you are
writing
Data Byte: data goes into the register
set by the command byte
8 bits
(MSB)
8 bits
(MSB)
8 bits
(LSB)
Slave Address: equiva-
lent to chip-select line of
a 3-wire interface
Command Byte: selects
to which register you are
writing
Slave Address: repeated
due to change in data-
flow direction
Data Bytes: reads from
the register set by the
command byte
S = Start condition
P = Stop condition
R/W = Read/Write
Shaded = Slave transmission
ACK = Acknowledge
NA = Not acknowledged
ACK
7 bits
ADDRESS
ACK
DATA
8 bits
S
COMMAND
P
ACK
8 bits
(LSB)
DATA
ACK
R/W
ACK
7 bits
ADDRESS
ACK
S
ACK
DATA
ACK
DATA
ADDRESS
R
8 bits
P
S
COMMAND
NA
R/W
Figure 2. SMBus/I
2
C Protocols
Table 2. MAX6604 Registers
ADDRESS
POR
STATE
DESCRIPTION
00h
0017h
Capability register
01h
0000h
Configuration register
02h
0000h
Alarm-temperature upper-boundary
trip register
03h
0000h
Alarm-temperature lower-boundary
trip register
04h
0000h
Critical-temperature trip register
05h
0000h
Temperature register
06h
004Dh
Manufacturers ID register
07h
5400h
Device ID/revision register
08h0Eh
0000h
Vendor-defined registers (not used)
Table 1. MAX6604 Sensor Address
FUNCTION
ADDRESS
Temperature
sensor
0
0
1
1
A2 A1 A0 R/W
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX6605MXK | 制造商:Maxim Integrated Products 功能描述:5 PINS SC70 PKG - Rail/Tube |
| MAX6605MXK/V+ | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| MAX6605MXK/V+T | 功能描述:板上安裝溫度傳感器 Low-Power Analog Temperature Sensor RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| MAX6605MXK+ | 制造商:Maxim Integrated Products 功能描述:TEMP SENSOR ANLG 5PIN SC-70 - Rail/Tube |
| MAX6605MXK+T | 功能描述:板上安裝溫度傳感器 Low-Power Analog Temperature Sensor RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
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