Datasheet > 驱动程序和接口 > 线路驱动器或接收器> DS2480B+T&R

DS2480B+T&R

更新时间： 2024-01-10 11:01:44

品牌	Logo	应用领域
美信 - MAXIM		线路驱动器或接收器驱动程序和接口接口集成电路光电二极管
页数	文件大小	规格书
32页	702K
描述
Line Driver, 1 Func, 1 Driver, PDSO8, 0.150 INCH, ROHS COMPLIANT, SOP-8

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技术参数
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DS2480B+T&R 技术参数

是否Rohs认证：	不符合	生命周期：	Obsolete
零件包装代码：	SOIC	包装说明：	SOP, SOP8,.25
针数：	8	Reach Compliance Code：	not_compliant
风险等级：	5.87	JESD-30 代码：	R-PDSO-G8
JESD-609代码：	e0	湿度敏感等级：	1
端子数量：	8	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	SOP	封装等效代码：	SOP8,.25
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE
电源：	5 V	认证状态：	Not Qualified
子类别：	Serial IO/Communication Controllers	标称供电电压：	5 V
表面贴装：	YES	技术：	CMOS
温度等级：	INDUSTRIAL	端子面层：	Tin/Lead (Sn/Pb)
端子形式：	GULL WING	端子节距：	1.27 mm
端子位置：	DUAL

DS2480B+T&R 数据手册

19-5047; 5/10

DS2480B

Serial to 1-Wire Line

Driver

www.maxim-ic.com

FEATURES

PIN ASSIGNMENT

. Universal, Common-Ground Serial Port to 1-

Wire^®Line Driver

GND

1-W

RXD

. Works with All iButton^®and 1-Wire Slave

Devices

TXD

POL

. 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

VDD

VPP

8-Pin SO (150 mil)

PIN DESCRIPTION

GND

1-W

- Ground

- 1-Wire Input/Output

- No Connection

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

V_DD

V_PP

- 4.5V to 5.5V

- Optional EPROM

Programming Voltage

- RXD/TXD Polarity Select

- Serial Data from UART

- Serial Data to UART

POL

TXD

RXD

ORDERING INFORMATION

TEMP

RANGE

PIN-

PACKAGE

PART

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.

. Low-Cost 8-Pin SO Surface-Mount Package

. Operates Over 4.5V to 5.5V from -40°C to

+85°C

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

1 of 32

12 3 4 5 6 7...32

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DS2480BS	DALLAS	Serial 1-Wire Line Driver with Load Sensor	获取价格
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DS2482-100	MAXIM	Single-Channel 1-Wire Master	获取价格
DS2482-100	ADI	单通道1-Wire主控制器	获取价格
DS2482-100_12	MAXIM	Single-Channel 1-Wire Master	获取价格

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