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参数资料
| 型号： | DS2480B+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/32页 |
| 文件大小： | 0K |
| 描述： | IC LINE DRVR W/SENSOR 1-W 8-SOIC |
| 产品培训模块： | 1-Wire Communications Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 100 |
| 类型： | 线路驱动器，发射器 |
| 驱动器/接收器数： | 1/0 |
| 规程： | RS232 |
| 电源电压： | 4.5 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 管件 |
| 产品目录页面： | 1429 (CN2011-ZH PDF) |
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Maxim Integrated 1
FEATURES
Universal, Common-Ground Serial Port to |
1-Wire Line Driver
Works with All iButton and 1-Wire Slave
Devices
Communicates at Standard and Overdrive
1-Wire speed and Serial Port Data Rates of
9600 (default), 19200, 57600, and 115200 bps
Supports 12V EPROM Programming and
Stiff 5V Pullup for Sensors and EEPROM
Self-Calibrating Time Base with ±5%
Tolerance for Serial and 1-Wire
Communication
Slew Rate Controlled 1-Wire Pulldown and
Active Pullup to Accommodate Long Lines
and Reduce Radiation
User-Selectable RXD/TXD Polarity
Minimizes Component Count When
Interfacing to 5V Based RS232 Systems or
Directly to UARTs
Programmable 1-Wire Timing and Driver
Characteristics Accommodate a Wide Range
of Slave Device Configurations at Standard
Speed
Smart Protocol Combines Data and Control
Information Without Requiring Extra Pins
Compatible with Optical, IR, and RF to
RS232 Converters
Low-Cost 8-Pin SO Surface-Mount Package
Operates Over 4.5V to 5.5V from -40°C to
+85°C
PIN ASSIGNMENT
PIN DESCRIPTION
GND
- Ground
1-W
- 1-Wire Input/Output
NC
- No Connection
VDD
- 4.5V to 5.5V
VPP
- Optional EPROM
Programming Voltage
POL
- RXD/TXD Polarity Select
TXD
- Serial Data from UART
RXD
- Serial Data to UART
ORDERING INFORMATION
PART
TEMP
RANGE
PIN-
PACKAGE
DS2480B+
-40°C to +85°C 8 SO
DS2480B+T&R -40°C to +85°C 8 SO
+ Denotes a lead(Pb)-free/RoHS-compliant package.
T&R = Tape and reel.
DESCRIPTION
The DS2480B is a serial port to 1-Wire interface chip that supports standard and overdrive speeds. It con-
nects directly to UARTs and 5V RS232 systems. Interfacing to RS232C (±12V levels) requires a passive
clamping circuit and one 5V to ±12V level translator. Internal timers relieve the host of the burden of
generating the time-critical 1-Wire communication waveforms. In contrast to the DS9097(E) where a full
character must be sent by the host for each 1-Wire time slot, the DS2480B can translate each character
into eight 1-Wire time slots, thereby increasing the data throughput significantly. In addition, the
DS2480B can be set to communicate at four different data rates, including 115.2kbps, 57.6kbps, and
19.2kbps, with 9.6kbps being the power-on default. Command codes received from the host’s crystal
controlled UART serve as a reference to continuously calibrate the on-chip timing generator. The
DS2480B
Serial to 1-Wire Line
Driver
1
2
3
4
8
7
6
5
GND
1-W
NC
VDD
RXD
TXD
POL
VPP
8-Pin SO (150 mil)
19-5047; 5/10
1-Wire and iButton are registered trademarks of
Maxim Integrated Products, Inc.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2480B | 制造商:Maxim Integrated Products 功能描述:IC SERIAL LINE DRIVER 2480 SOIC8 |
| DS2480B/T&R | 功能描述:缓冲器和线路驱动器 RoHS:否 制造商:Micrel 输入线路数量:1 输出线路数量:2 极性:Non-Inverting 电源电压-最大:+/- 5.5 V 电源电压-最小:+/- 2.37 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Reel |
| DS2480B+ | 功能描述:缓冲器和线路驱动器 Serial - 1-Wire Line Driver RoHS:否 制造商:Micrel 输入线路数量:1 输出线路数量:2 极性:Non-Inverting 电源电压-最大:+/- 5.5 V 电源电压-最小:+/- 2.37 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Reel |
| DS2480B+R | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Serial to 1-Wire Line Driver |
| DS2480B+T | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Serial to 1-Wire Line Driver |
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