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參數(shù)資料
| 型號(hào)： | LM76CHMX-5 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | 【0.5∑C, 【1∑C, 12-Bit Sign Digital Temperature Sensor and Thermal Window Comparator with Two-Wire Interface |
| 中文描述： | DIGITAL TEMP SENSOR-SERIAL, 13BIT(s), 1Cel, RECTANGULAR, SURFACE MOUNT |
| 封裝： | 0.150 INCH, PLASTIC, SO-8 |
| 文件頁(yè)數(shù)： | 9/15頁(yè) |
| 文件大小： | 311K |
| 代理商： | LM76CHMX-5 |
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1.0 Functional Description
(Continued)
and T_CRIT_A outputs. The fault queue is enabled by set-
ting bit 4 of the Configuration Register high (see Section
1.11).
1.8 INTERNAL REGISTER STRUCTURE
There are four data registers in the LM76, selected by the
Pointer register.At power-up the Pointer is set to “00”; the lo-
cation for the Temperature Register. The Pointer register
latches the last location it was set to. In Interrupt Mode, a
read from the LM76 resets the INT output. Placing the device
in Shutdown mode resets the INT and T_CRIT_Aoutputs.All
registers are read and write, except the Temperature register
which is read only.
A write to the LM76 will always include the address byte and
the Pointer byte. A write to the Configuration register re-
quires one data byte, while the T
LOW
, T
HIGH
, and T_CRIT
registers require two data bytes.
Reading the LM76 can take place either of two ways: If the
location latched in the Pointer is correct (most of the time it is
expected that the Pointer will point to the Temperature regis-
ter because it will be the data most frequently read from the
LM76), then the read can simply consist of an address byte,
followed by retrieving the corresponding number of data
bytes. If the Pointer needs to be set, then an address byte,
pointer byte, repeat start, and another address byte plus re-
quired number of data bytes will accomplish a read.
The first data byte is the most significant byte with most sig-
nificant bit first, permitting only as much data as necessary to
be read to determine the temperature condition. For in-
stance, if the first four bits of the temperature data indicates
a critical condition, the host processor could immediately
take action to remedy the excessive temperature. At the end
of a read, the LM76 can accept either Acknowledge or No
Acknowledge from the Master (No Acknowledge is typically
used as a signal for the slave that the Master has read its
last byte).
An inadvertent 8-bit read from a 16-bit register, with the D7
bit low, can cause the LM76 to stop in a state where the SDA
line is held low as shown in Figure 4 This can prevent any
further bus communication until at least 9 additional clock
cycles have occurred. Alternatively, the master can issue
clock cycles until SDA goes high, at which time issuing a
“Stop” condition will reset the LM76.
DS101015-7
DS101015-8
FIGURE 4. Inadvertent 8-Bit Read from 16-Bit Register where D7 is Zero (“0”)
L
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| LM76CHMX-5/NOPB | 功能描述:板上安裝溫度傳感器 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 |
| LM76CNM-3 | 功能描述:IC SENSOR/THERM COMP DIG 8-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 熱管理 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 功能:溫度監(jiān)控系統(tǒng)（傳感器） 傳感器類型:內(nèi)部和外部 感應(yīng)溫度:-40°C ~ 125°C，外部傳感器 精確度:±2.5°C 本地（最大值），±5°C 遠(yuǎn)程（最大值） 拓?fù)?ADC，比較器，寄存器庫(kù) 輸出類型:2 線 SMBus? 輸出警報(bào):無(wú) 輸出風(fēng)扇:無(wú) 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-8 供應(yīng)商設(shè)備封裝:SOT-23-8 包裝:Digi-Reel® 其它名稱:296-22675-6 |
| LM76CNMX-3 | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述: |
| LM76-NEVAL | 功能描述:EVALUATION BOARD FOR LM76-N RoHS:是 類別:編程器，開(kāi)發(fā)系統(tǒng) >> 評(píng)估板 - 傳感器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- |
| LM77 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:9-Bit Sign Digital Temperature Sensor and Thermal Window Comparator with Two-Wire Interface |
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