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參數(shù)資料
| 型號： | LM74CIM-3 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | IC PROCESSOR UART ONE CHANNEL 16 BYTE RX/TX FIFO |
| 中文描述： | DIGITAL TEMP SENSOR-SERIAL, 13BIT(s), 3Cel, RECTANGULAR, SURFACE MOUNT |
| 封裝： | PLASTIC, SOP-8 |
| 文件頁數(shù)： | 6/15頁 |
| 文件大?。?/td> | 293K |
| 代理商： | LM74CIM-3 |
Logic Electrical Characteristics
(Continued)
Note 1:
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. DC and AC electrical specifications do not apply when operating
the device beyond its rated operating conditions.
Note 2:
When the input voltage (V
) at any pin exceeds the power supplies (V
<
GND or V
>
+V
) the current at that pin should be limited to 5 mA. The 20 mA
maximum package input current rating limits the number of pins that can safely exceed the power supplies with an input current of 5 mA to four.
Note 3:
See AN-450 “Surface Mounting Methods and Their Effect on Product Reliability” or the section titled “Surface Mount” found in a current National
Semiconductor Linear Data Book for other methods of soldering surface mount devices.
Note 4:
Human body model, 100 pF discharged through a 1.5 k
resistor. Machine model, 200 pF discharged directly into each pin.
Note 5:
The life expectancy of the LM74 will be reduced when operating at elevated temperatures. LM74
θ
JA
(thermal resistance, junction-to-ambient) when
attached to a printed circuit board with 2 oz. foil is summarized in the table below:
Device Number
NS Package
Number
M08A
BPD05MPB
Thermal
Resistance (
θ
JA
)
160C/W
250C/W
LM74CIM
LM74CIBP
Note 6:
All SOP (LM74CIM) parts will function over the V
+
supply voltage range of 3V to 5.5V. All micro SMD (LM74SIBP) parts will function over the V
+
supply
voltage range of 2.65V to 5.5V. The SOP (LM74CIM) parts are tested and specified for rated temperature error at their nominal supply voltage for temperature ranges
of 10C to +65C, 55C to +125C and 55C to +150C. For the SOP (LM74CIM) parts the temperature error specifications for temperature ranges of 40C to
+85C, 25C to +110C and 40C to +110C include error induced by power supply variation of
±
5% from the nominal value. For the LM74CIM (SOP) parts the
temperature error will increase by
±
0.3C for a power supply voltage (V
+
) variation of
±
10% from the nominal value.
For the LM74CIBP-3 (micro SMD) parts all accuracies are guaranteed over the supply range of 2.65V to 3.6V, except for the temperature ranges of -55C to 125C
and 55C to +150C where the accuracy applies for the nominal supply voltage of 3.3V. For the LM74CIBP-5 (micro SMD) parts all accuracies are guranteed over
the supply range of 4.75V to 5.25V, except for the temperature ranges of -55C to 125C and 55C to +150C where the accuracy applies for the nominal supply
voltage of 5.0V. For the LM74CIBP over -55C to 125C and 55C to +150C, a power supply variation of
±
10% will degrade the accuracy by
±
0.3C.
10090905
FIGURE 3. TRI-STATE Data Output Timing Diagram
10090906
FIGURE 4. Data Input Timing Diagram
L
www.national.com
6
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LM74CIM-3 T&R | 制造商:Texas Instruments 功能描述:Temp Sensor Digital Serial (3-Wire, SPI) 8-Pin SOIC T/R |
| LM74CIM-3/NOPB | 功能描述:板上安裝溫度傳感器 Digital Temp Sensor RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 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 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
| LM74CIM-3/NOPB | 制造商:Texas Instruments 功能描述:IC TEMP SENSOR |
| LM74CIM-3/NOPB | 制造商:Texas Instruments 功能描述:Temperature Sensor IC |
| LM74CIM-5 | 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 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
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