Datasheet 搜索 > Dallas Semiconductor（达拉斯半导体） > DS18S20 数据手册 > DS18S20 其他数据使用手册 1/27 页
￥ 16.242
DS18S20 其他数据使用手册 - Dallas Semiconductor（达拉斯半导体）
制造商:
Dallas Semiconductor（达拉斯半导体）
封装:
TO-92
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
导航目录
DS18S20数据手册
Page:
of 27 Go
若手册格式错乱，请下载阅览PDF原文件
Copyright 1995 by Dallas Semiconductor Corporation.
All Rights Reserved. For important information regarding
patents and other intellectual property rights, please refer to
Dallas Semiconductor data books.
DS1820
1–Wire
TM
Digital Thermometer
DS1820
021497 1/27
FEATURES
• Unique 1–Wire
TM
interface requires only one port pin
for communication
• Multidrop capability simplifies distributed temperature
sensing applications
• Requires no external components
• Can be powered from data line
• Zero standby power required
• Measures temperatures from –55°C to +125°C in
0.5°C increments. Fahrenheit equivalent is –67°F to
+257°F in 0.9°F increments
• Temperature is read as a 9–bit digital value.
• Converts temperature to digital word in 200 ms (typ.)
• User–definable, nonvolatile temperature alarm set-
tings
• Alarm search command identifies and addresses
devices whose temperature is outside of pro-
grammed limits (temperature alarm condition)
• Applications include thermostatic controls, industrial
systems, consumer products, thermometers, or any
thermally sensitive system
PIN ASSIGNMENT
321
DALLAS
DS2434
GND
DQ
VDD
DALLAS
DS1820
321
DS1820S
16–PIN SSOP
DS1820
PR35 PACKAGE
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
NC
NC
NC
NC
NC
NC
NC
GND
NC
NC
NC
NC
NC
NC
VDD
DQ
BOTTOM VIEW
See Mech. Drawings
Section
See Mech. Drawings
Section
PIN DESCRIPTION
GND – Ground
DQ – Data In/Out
V
DD
– Optional V
DD
NC – No Connect
DESCRIPTION
The DS1820 Digital Thermometer provides 9–bit tem-
perature readings which indicate the temperature of the
device.
Information is sent to/from the DS1820 over a 1–Wire
interface, so that only one wire (and ground) needs to be
connected from a central microprocessor to a DS1820.
Power for reading, writing, and performing temperature
conversions can be derived from the data line itself with
no need for an external power source.
Because each DS1820 contains a unique silicon serial
number, multiple DS1820s can exist on the same
1–Wire bus. This allows for placing temperature sen-
sors in many different places. Applications where this
feature is useful include HVAC environmental controls,
sensing temperatures inside buildings, equipment or
machinery, and in process monitoring and control.
器件 Datasheet 文档搜索
AiEMA 数据库涵盖高达 72,405,303 个元件的数据手册，每天更新 5,000 多个 PDF 文件
