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參數(shù)資料
| 型號： | DS18B20X |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | Switch/Digital Output Temperature Sensor |
| 英文描述： | DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 2Cel, RECTANGULAR, SURFACE MOUNT |
| 封裝： | FCP-4 |
| 文件頁數(shù)： | 12/21頁 |
| 文件大?。?/td> | 292K |
| 代理商： | DS18B20X |
DS18B20
2 of 21
ORDER INFORMATION
ORDERING
NUMBER
PACKAGE
MARKING
DESCRIPTION
DS18B20
18B20
DS18B20 in 3-pin TO92
DS18B20/T&R
18B20
DS18B20 in 3-pin TO92, 2000 Piece Tape-and-Reel
DS18B20+
18B20 (See Note)
DS18B20 in Lead-Free 3-pin TO92
DS18B20+T&R
18B20 (See Note)
DS18B20 in Lead-Free 3-pin TO92, 2000 Piece Tape-
and-Reel
DS18B20U
18B20
DS18B20 in 8-pin uSOP
DS18B20U/T&R
18B20
DS18B20 in 8-pin uSOP, 3000 Piece Tape-and-Reel
DS18B20U+
18B20 (See Note)
DS18B20 in Lead-Free 8-pin uSOP
DS18B20U+T&R
18B20 (See Note)
DS18B20 in Lead-Free 8-pin uSOP, 3000 Piece Tape-
and-Reel
DS18B20Z
DS18B20
DS18B20 in 150 mil 8-pin SO
DS18B20Z/T&R
DS18B20
DS18B20 in 150 mil 8-pin SO, 2500 Piece Tape-and-
Reel
DS18B20Z+
DS18B20 (See Note)
DS18B20 in Lead-Free 150 mil 8-pin SO
DS18B20Z+T&R
DS18B20 (See Note)
DS18B20 in Lead-Free 150 mil 8-pin SO, 2500 Piece
Tape-and-Reel
DS18B20X
28
DS18B20 in Flip Chip, 10000 Piece Tape-and-Reel
Note: A “+” symbol will also be marked on the package.
DETAILED PIN DESCRIPTIONS Table 1
SO*
mSOP* TO-92 SYMBOL DESCRIPTION
5
4
1
GND
Ground.
4
1
2
DQ
Data Input/Output pin. Open-drain 1-Wire interface pin.
Also provides power to the device when used in parasite
power mode (see “Parasite Power” section.)
3
8
3
VDD
Optional VDD pin. VDD must be grounded for operation in
parasite power mode.
*All pins not specified in this table are “No Connect” pins.
OVERVIEW
Figure 1 shows a block diagram of the DS18B20, and pin descriptions are given in Table 1. The 64-bit
ROM stores the device’s unique serial code. The scratchpad memory contains the 2-byte temperature
register that stores the digital output from the temperature sensor. In addition, the scratchpad provides
access to the 1-byte upper and lower alarm trigger registers (TH and TL), and the 1-byte configuration
register. The configuration register allows the user to set the resolution of the temperature-to-digital
conversion to 9, 10, 11, or 12 bits. The TH, TL and configuration registers are nonvolatile (EEPROM), so
they will retain data when the device is powered down.
The DS18B20 uses Dallas’ exclusive 1-Wire bus protocol that implements bus communication using one
control signal. The control line requires a weak pullup resistor since all devices are linked to the bus via a
3-state or open-drain port (the DQ pin in the case of the DS18B20). In this bus system, the
microprocessor (the master device) identifies and addresses devices on the bus using each device’s unique
64-bit code. Because each device has a unique code, the number of devices that can be addressed on one
bus is virtually unlimited. The 1-Wire bus protocol, including detailed explanations of the commands and
“time slots,” is covered in the 1-WIRE BUS SYSTEM section of this datasheet.
相關PDF資料 |
PDF描述 |
|---|---|
| DS18B20Z | DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 0.50Cel, RECTANGULAR, SURFACE MOUNT |
| DS18B20 | DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 0.50Cel, RECTANGULAR, THROUGH HOLE MOUNT |
| DS18B20U+T&R | DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 0.50Cel, SQUARE, SURFACE MOUNT |
| DS18B20-SL+T&R | DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 0.50Cel, RECTANGULAR, THROUGH HOLE MOUNT |
| DS18B20/T&R | DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 0.50Cel, RECTANGULAR, THROUGH HOLE MOUNT |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| DS18B20X/T&R | 制造商:Maxim Integrated Products 功能描述:THE MAXIM DS18B20X/T&R IS A TEMPERATURE SENSOR. - Tape and Reel 制造商:Maxim Integrated Products 功能描述:Maxim DS18B20X/T&R, Digital Thermometer 9bit-to-12bit -55C to +125C 3V-5.5V |
| DS18B20X/T&R | 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 |
| DS18B20Z | 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 |
| DS18B20Z/T&R | 制造商:Maxim Integrated Products 功能描述:HI RES MICROLAN DIG THERM 8-SOIC TR - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC THERM MICROLAN PROG-RES 8SOIC 制造商:Maxim Integrated Products 功能描述:Board Mount Temperature Sensors Prgmble Resolution 1-Wire Parasite Pwr |
| DS18B20Z/T&R | 功能描述:板上安裝溫度傳感器 Prgmble Resolution 1-Wire Parasite Pwr 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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