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| 型号： | NE1617ADS,112 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 8/30页 |
| 文件大小： | 305K |
| 描述： | IC TEMP MONITOR 16SSOP |
| 标准包装： | 100 |
| 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： | -55°C ~ 125°C，外部传感器 |
| 精确度： | ±3°C 本地（最大），±5°C 远程（最大） |
| 拓扑： | ADC，多路复用器，寄存器库 |
| 输出类型： | SMBus? |
| 输出警报： | 是 |
| 输出风扇： | 无 |
| 电源电压： | 3 V ~ 5.5 V |
| 工作温度： | -55°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-SSOP |
| 包装： | 管件 |
| 其它名称： | 935268119112 NE1617ADS NE1617ADS-ND |
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NE1617A
All information provided in this document is subject to legal disclaimers.
?NXP B.V. 2012. All rights reserved.
Product data sheet
Rev. 5 20 March 2012
8 of 30
NXP Semiconductors
NE1617A
Temperature monitor for microprocessor systems
8.3.1 Low power standby modes
Upon POR, the device is reset to its normal free-running auto-conversion operation mode.
The device can be put into standby mode by either using hardware control (connect the
STBY
pin to LOW for hardware standby mode) or using software control (set bit 6 of the
configuration register to HIGH for software standby mode). When the device is put in
either one of the standby modes, the supply current is reduced to less than 10 mA if there
is no SMBus activity, all data in the device registers are retained and the SMBus interface
is still alive to bus communication. However, there is a difference in the device ADC
conversion operation between hardware standby and software standby modes. In
hardware standby mode, the device conversion is inhibited and the one-shot command
does not initiate a conversion. In software standby mode, the one-shot command will
initiate a conversion for both internal and external channels.
If a hardware standby command is received when the device is in normal mode and a
conversion is in progress, the conversion cycle will stop and data in reading temperature
registers will not be updated.
8.3.2 Configuration register
The configuration register is used to mask the Alert interrupt and/or to put the device in
software standby mode. Only two bits of this register (bit 6 and bit 7) are used as listed in
Table 5
. Bit 7 is used to mask the device ALERT
output from Alert interruption when this
bit is set to logic 1, and bit 6 is used to activate the standby software mode when this bit is
set to logic 1.
This register can be written or read using the commands of registers named WC and RC
accordingly. Upon Power-On Reset (POR), both bits are reset to zero.
8.3.3 External and internal temperature registers
Results of temperature measurements after every ADC conversion are stored in two
registers: Internal Temp register (RIT) for internal or local diode temperature, and External
Temp register (RET) for external or remote diode temperature. These registers can be
only read over the SMBus. The reading temperature data is in 2's complement binary form
consisting of 7-bit data and 1-bit sign (MSB), with each data count represents 1 癈, and
the MSB bit is transmitted first over the serial bus. The contents of those two registers are
updated upon completion of each ADC conversion. Table 6
shows some values of the
temperature and data.
Table 5.
Configuration register bit assignments
Bit
Symbol
POR state
Function
7 (MSB) MASK
0
Mask ALERT
interrupt. Interrupt is enabled when this bit
is LOW, and disabled when this bit is HIGH.
6
RUN/STOP 0
Standby or run mode control. When LOW, running mode
is enabled; when HIGH, standby mode is initiated.
5 to 0
-
n/a
reserved
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| NE1617DS | 功能描述:板上安装温度传感器 I2C LOC +/- 2OC AND REM +/- 3OC TS 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 |
| NE1617DS,112 | 功能描述:板上安装温度传感器 I2C LOC +/- 2OC AND 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 |
| NE1617DS,118 | 功能描述:板上安装温度传感器 I2C LOC +/- 2OC AND REM +/- 3OC TS 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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