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| 型号： | LM74CIM-3 |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 温度/湿度传感器 |
| 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 |
| 封装： | PLASTIC, SOP-8 |
| 文件页数： | 1/15页 |
| 文件大小： | 293K |
| 代理商： | LM74CIM-3 |
LM74
SPI/MICROWIRE
12-Bit Plus Sign Temperature Sensor
General Description
The LM74 is a temperature sensor, Delta-Sigma analog-to-
digital converter with an SPI and MICROWIRE compatible
interface. The host can query the LM74 at any time to read
temperature. A shutdown mode decreases power consump-
tion to less than 10 μA. This mode is useful in systems where
low average power consumption is critical.
The LM74 has 12-bit plus sign temperature resolution
(0.0625C per LSB) while operating over a temperature
range of 55C to +150C.
The LM74’s 3.0V to 5.5V supply voltage range, low supply
current and simple SPI interface make it ideal for a wide
range of applications. These include thermal management
and protection applications in hard disk drives, printers, elec-
tronic test equipment, and office electronics. The LM74 is
available in the SO-8 package as well as an 5-Bump micro
SMD package.
Applications
n
System Thermal Management
n
Personal Computers
n
Disk Drives
n
Office Electronics
n
Electronic Test Equipment
Features
n
0.0625C temperature resolution.
n
Shutdown mode conserves power between temperature
reading
n
SPI and MICROWIRE Bus interface
n
5-Bump micro SMD package saves space
Key Specifications
j
Supply Voltage
3.0V or 2.65V to
5.5V
j
Supply Current
operating
265μA (typ)
520μA (max)
3μA (typ)
shutdown
j
Temperature
Accuracy
10C to 65C
25C to 110C
55C to 125C
±
1.25C(max)
±
2.1C(max)
±
3C(max)
Simplified Block Diagram
10090901
MICROWIRE
is a registered trademark of National Semiconductor Corporation.
TRI-STATE
is a registered trademark of National Semiconductor Corporation.
April 2003
L
2003 National Semiconductor Corporation
DS100909
www.national.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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:板上安装温度传感器 Digital Temp 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 |
| 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 |
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