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参数资料
| 型号： | MAX6657MSA+ |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 温度/湿度传感器 |
| 英文描述： | ±1°C, SMBus-Compatible Remote/Local Temperature Sensors with Overtemperature Alarms |
| 中文描述： | DIGITAL TEMP SENSOR-SERIAL, 11BIT(s), 1Cel, RECTANGULAR, SURFACE MOUNT |
| 封装： | 0.150 INCH, LEAD FREE, MO-012AA, SOIC-8 |
| 文件页数： | 4/19页 |
| 文件大小： | 338K |
| 代理商： | MAX6657MSA+ |
MAX6657/MAX6658/MAX6659
For example, OVERT1 has a threshold set to +50°C
and is connected to a fan. OVERT2 has a threshold of
+75°C and is connected to a system shutdown. If the
system reaches +50°C, the fan turns on, trying to cool
the system. If the system continues to heat up to the
critical temperature of +75°C, OVERT2 causes the sys-
tem to shut down.
Command Byte Functions
The 8-bit Command Byte register (Table 4) is the master
index that points to the various other registers within the
MAX6657/MAX6658/MAX6659. This register’s POR state
is 0000 0000, so a Receive Byte transmission (a protocol
that lacks the command byte) occurring immediately
after POR returns the current local temperature data.
One-Shot
The one-shot command immediately forces a new con-
version cycle to begin. If the one-shot command is
received when the MAX6657/MAX6658/MAX6659 are in
software standby mode (RUN/STOP bit = 1), a new
conversion is begun, after which the device returns to
standby mode. If a conversion is in progress when a
one-shot command is received, the command is
ignored. If a one-shot command is received in autocon-
vert mode (RUN/STOP bit = 0) between conversions, a
new conversion begins, the conversion rate timer is
reset, and the next automatic conversion takes place
after a full delay elapses.
Configuration Byte Functions
The Configuration Byte register (Table 5) is a Read-Write
register with several functions. Bit 7 is used to mask (dis-
able) interrupts. Bit 6 puts the device into software stand-
by mode (STOP) or autonomous (RUN) mode. Bit 5
selects the type of external junction (set to 1 for a sub-
strate PNP on an IC or set to 0 for a discrete diode-con-
nected transistor) for optimized measurements. Bits 0 to
4 are reserved and return a zero when read.
12
______________________________________________________________________________________
REGISTER
ADDRESS
POR STATE
FUNCTION
RLTS
00h
0000 0000
Read Internal Temperature
RRTE
01h
0000 0000
Read External Temperature
RSL
02h
1000 0000
Read Status Register
RCL
03h
0010 0000
Read Configuration Byte
RCRA
04h
0000 1000
Read Conversion Rate Byte
RLHN
05h
0100 0110
Read Internal High Limit
RLLI
06h
1100 1001
Read Internal Low Limit
RRHI
07h
0100 0110
Read External High Limit
RRLS
08h
1100 1001
Read External Low Limit
WCA
09h
0010 0000
Write Configuration Byte
WCRW
0Ah
0000 1000
Write Conversion Rate Byte
WLHO
0Bh
0100 0110
Write Internal High Limit
WLLM
0Ch
1100 1001
Write Internal Low Limit
WRHA
0Dh
0100 0110
Write External High Limit
WRLN
0Eh
1100 1001
Write External Low Limit
OSHT
0Fh
N/A
One Shot
REET
10h
0000 0000
Read External Extended Temperature
RIET
11h
0000 0000
Read Internal Extended Temperature
RWO2E
16h
0101 0101
Read/Write External
OVERT2 Limit (MAX6659 only)
RW02I
17h
0101 0101
Read/Write Internal
OVERT2 Limit (MAX6659 only)
RWOE
19h
0101 0101
Read/Write External
OVERT1 Limit
RWOI
20h
0101 0101
Read/Write Internal
OVERT1 Limit
HYST
21h
0000 1010
Overtemperature Hysteresis
—
FEh
4Dh
Read Manufacture ID
Table 4. Command Byte Register Assignments
±1°C, SMBus-Compatible Remote/Local Temperature
Sensors with Overtemperature Alarms
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6657MSA+ | 功能描述:板上安装温度传感器 Remote/Local 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 |
| MAX6657MSA+T | 功能描述:板上安装温度传感器 Remote/Local 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 |
| MAX6657MSA-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 |
| MAX6657MSA-TG069 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX6657YMSA+ | 功能描述:板上安装温度传感器 Remote/Local 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 |
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