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| 型號(hào)： | SA56004HD,118 |
| 廠(chǎng)商： | NXP Semiconductors |
| 文件頁(yè)數(shù)： | 14/43頁(yè) |
| 文件大小： | 516K |
| 描述： | IC TEMP SENSOR DIGITAL 8SOIC |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 功能： | 溫度監(jiān)控系統(tǒng)（傳感器） |
| 傳感器類(lèi)型： | 內(nèi)部和外部 |
| 感應(yīng)溫度： | -40°C ~ 125°C |
| 精確度： | ±3°C（最小值） |
| 拓?fù)洌?/td> | ADC（三角積分型），多路復(fù)用器，寄存器庫(kù) |
| 輸出類(lèi)型： | I²C?/SMBus? |
| 輸出警報(bào)： | 是 |
| 輸出風(fēng)扇： | 是 |
| 電源電壓： | 3 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類(lèi)型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-SO |
| 包裝： | 帶卷 (TR) |
| 其它名稱(chēng)： | 935274554118 SA56004HD-T SA56004HD-T-ND |
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SA56004X
All information provided in this document is subject to legal disclaimers.
?NXP B.V. 2013. All rights reserved.
Product data sheet
Rev. 7 25 February 2013
14 of 43
NXP Semiconductors
SA56004X
Digital temperature sensor with overtemperature alarms
7.9 Interruption logic and functional description
7.9.1 ALERT
output
The ALERT
output is used to signal Alert interruptions from the device to the SMBus or
other system interrupt handler and it is active LOW. Because this is an open-drain output,
a pull-up resistor (typically 10 kW) to V
DD
is required. Several slave devices can share a
common interrupt line on the same SMBus.
The ALERT
function is very versatile and accommodates three separate operating
modes:
" Temperature comparator
" System interrupt based on temperature
" SMBus Alert Response Address (ARA) response.
The ARA and interrupt modes are different only in how the user interacts with the
SA56004X.
At the end of every temperature reading, digital comparators determine if the readings are
above the HIGH or T_CRIT setpoint or below the LOW setpoint register values. If so, the
corresponding bit in the Status register is set. If the ALERT
mask bit 7 of the Configuration
register is not HIGH, then any bit set in the Status register other than the BUSY (D7) and
OPEN (D2) causes the ALERT
output pin to be active LOW. An alert will be triggered after
any conversion cycle that finds the temperature is out of the limits defined by the setpoint
registers. In order to trigger an ALERT in all alert modes, the ALERT
mask bit 7 of the
Configuration register must be cleared (not HIGH).
7.9.1.1 ALERT
output in comparator mode
When operating the SA56004X in a system that utilizes an SMBus controller not having
an interrupt, the ALERT
output may be operated as a temperature comparator. In this
mode, when the condition that triggered the ALERT to be asserted is no longer present,
the ALERT
output is released as it goes HIGH. In order to use the ALERT
output as a
temperature comparator, bit D0 (the ALERT configure bit) in the ALERT Mode (AM)
register must be set HIGH. This is not the POR default.
7.9.1.2 ALERT
output in interrupt mode
In the interrupt mode, the ALERT
output is used to provide an interrupt signal that remains
asserted until the interrupt service routine has elapsed. In the interrupt operating mode, a
read of the Status register will set the ALERT
mask bit 7 of the Configuration register if
any of the temperature alarm bits of the Status register is set, with exception of BUSY (D7)
and OPEN (D2). This protocol prevents further ALERT
output triggering until the master
device has reset the ALERT
mask bit at the end of the interrupt service routine. The
Status register bits are cleared only upon a read of the Status register by the serial bus
master (see Figure 5
). In order for the ALERT
output to be used as an interrupt, the
ALERT Configure bit D0 of the ALERT Mode (AM) register must be set LOW (POR
default).
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SA56004HDP | 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:1 Degrees Celcious accurate, SMBus-compatible, 8-pin, remote/local digital temperature sensor with over temperature alarms |
| SA56004HDP,118 | 功能描述:板上安裝溫度傳感器 I2C LOC +/- 2OC AND RoHS:否 制造商:Omron Electronics 輸出類(lèi)型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線(xiàn)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 |
| SA56004HDP-T | 功能描述:板上安裝溫度傳感器 I2C LOC +/- 2OC AND REM +/- 1OC TS RoHS:否 制造商:Omron Electronics 輸出類(lèi)型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線(xiàn)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 |
| SA56004HD-T | 功能描述:板上安裝溫度傳感器 I2C LOC +/- 2OC AND REM +/- 1OC TS RoHS:否 制造商:Omron Electronics 輸出類(lèi)型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線(xiàn)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 |
| SA56004X | 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:1 Degrees Celcious accurate, SMBus-compatible, 8-pin, remote/local digital temperature sensor with over temperature alarms |
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