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| 型号： | MAX6642ATT90+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 8/14页 |
| 文件大小： | 154K |
| 描述： | IC TEMP SENSOR SMBUS 6-TDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 功能： | 温度监控系统（传感器） |
| 传感器类型： | 内部和外部 |
| 感应温度： | -40°C ~ 125°C，0°C ~ 150°C |
| 精确度： | ±3°C（最小值） |
| 拓扑： | ADC，多路复用器，寄存器库 |
| 输出类型： | I²C?/SMBus? |
| 输出警报： | 是 |
| 输出风扇： | 无 |
| 电源电压： | 3 V ~ 5.5 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 6-WDFN 裸露焊盘 |
| 供应商设备封装： | 6-TDFN 裸露焊盘（3x3） |
| 包装： | 标准包装 |
| 产品目录页面： | 1425 (CN2011-ZH PDF) |
| 其它名称： | MAX6642ATT90+TDKR |
the ALERT is cleared by responding to the alert
response address and the temperature fault condition
still exists, ALERT is reasserted after the next tempera-
ture-monitoring cycle. To clear ALERT while the tempera-
ture is above the trip threshold, write a new high limit that
is higher than the current temperature. The ALERT out-
put is open drain, allowing multiple devices to share a
common interrupt line.
Alert Response Address
The SMBus alert response interrupt pointer provides
quick fault identification for simple slave devices like
temperature sensors. Upon receiving an ALERT inter-
rupt signal, the host master can broadcast a Receive
Byte transmission to the alert response slave address
(0001 100). Following such a broadcast, any slave
device that generated an interrupt attempts to identify
itself by putting its own address on the bus.
The alert response can activate several different slave
devices simultaneously, similar to the I
2
C General Call.
If more than one slave attempts to respond, bus arbitra-
?癈, SMBus-Compatible Remote/Local
Temperature Sensor with Overtemperature Alarm
8 _______________________________________________________________________________________
A D D R ESS
PO
R ST A T E
F U N C T IO N
00h
00h ( 0000 0000)
Read l ocal tem
p er atur e
01h
00h ( 0000 0000)
Read r
em
ote tem p
er atur e
02h
N /A
Read status b yte
03h
10h ( 0001 0000)
Read confi g
ur ati on b yte
05h
46h ( 0100 0110) + 70?C Read l ocal hi g h l i m i t
07h
78h ( 0111 1000) + 120?C Read r em ote hi g h l i m i t
09h
N /A
W r i te confi
g ur ati on b
yte
0Bh
N /A
W r i te l ocal hi g h l
i m i
t
0D h
N /A
W r i te r em
ote hi g h l i m
i t
0Fh
N /A
S i
ng l e shot
10h
0000 0000
Read r em ote extend ed
tem p er
atur e
11h
0000 0000
Read i nter nal extend ed
tem p er
atur e
FE h
4D h ( 0100 1101)
Read m anufactur er ID
Table 3. Command-Byte Assignments
BIT
NAME
POR STATE
FUNCTION
7 (MSB)
MASK1
0
A 1 masks off (disables) the ALERT interrupts.
6
STOP/RUN
0
A 1 puts the MAX6642 into standby mode.
5
External only
0
A 1 disables local temperature measurements so that only
remote temperature is measured. The measurement rate
becomes 8Hz.
4
Fault
queue
1
0: ALERT is set by a single fault. 1: Two consecutive faults
are required to set ALERT.
3 to 0
0000
Reserved.
Table 4. Configuration-Byte Bit Assignments
BIT
NAME
POR STATE
FUNCTION
7 (MSB)
BUSY
0
A 1 indicates the MAX6642 is busy converting.
6
LHIGH
0
A 1 indicates an internal high-temperature fault. Clear
LHIGH with a POR or by reading the status byte.
5
0
Reserved.
4
RHIGH
0
A 1 indicates an external high-temperature fault. Clear
RHIGH with a POR or by reading the status byte.
3
0
Reserved.
2
OPEN
0
A 1 indicates a diode open condition. Clear OPEN with a
POR or by reading the status byte when the condition no
longer exists.
1 to 0
0
Reserved.
Table 5. Status-Byte Bit Assignments
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6642ATT92 | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| MAX6642ATT92+ | 制造商:Maxim Integrated Products 功能描述:TEMP SENSOR DGTL 2-WIRE 6TDFN EP - Rail/Tube |
| MAX6642ATT92+T | 功能描述:板上安装温度传感器 SMBus-Compatible Temperature Sensor RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| MAX6642ATT92-T | 功能描述:板上安装温度传感器 RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| MAX6642ATT94+ | 制造商:Maxim Integrated Products 功能描述:TEMP SENSOR DGTL 2-WIRE 6TDFN EP - Rail/Tube |
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