DS2480

更新时间： 2024-02-21 04:16:56

品牌	Logo	应用领域
达拉斯 - DALLAS		驱动器
页数	文件大小	规格书
26页	189K
描述
Serial 1.Wire Line Driver

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技术参数
数据手册

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DS2480 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

DS2480 数据手册

DS2480

Serial 1–Wire^TMLine Driver

FEATURES

• Universal, common–ground serial port to 1–Wire

line driver for MicroLAN applications

PIN ASSIGNMENT

GND

1–W

RXD

TXD

POL

• Works with all iButtons and MicroLAN–compatible

1–Wire slave devices

• Communicates at regular and Overdrive 1–Wire

speed and serial port data rates of 9600 (default),

19200, 57600 and 115200 bps

8–PIN SOIC

(150 MIL)

• Supports 12V EPROM programming and stiff 5V

PIN DESCRIPTION

pull–up for Crypto iButton, sensors and EEPROM

GND

1–W

Ground

1–Wire Input/Output

No Connection

• Self–calibrating time base with ±5% tolerance for

serial and 1–Wire communication

4.5 to 5.5 Volts

Optional EPROM

• Slew rate controlled 1–Wire pull–down and active

pull–up to accommodate long lines and reduce radi-

ation

Programming Voltage

RXD/TXD Polarity Select

Serial Data from UART

Serial Data to UART

POL

TXD

RXD

• User–selectable RXD/TXD polarity minimizes com-

ponent count when interfacing to 5V based RS232

systems or directly to UARTs

ORDERING INFORMATION

• Programmable 1–Wire timing and driver characteris-

tics accommodate a wide range of MicroLAN configu-

rations at regular speed

DS2480S

8–pin SOIC

• Smartprotocolcombinesdataandcontrolinformation

without requiring extra pins

• Compatibleto optical, IR and RF to RS232 converters

• Low cost 8–pin SOIC surface mount package

• Operates over 4.5V to 5.5V from –40°C to +85°C

DESCRIPTION

The DS2480 is a serial port to 1–Wire interface chip that

supports standard and Overdrive speeds. It connects

directlytoUARTsand5VRS232systems. Interfacingto

RS232C (± 12V levels) requires a passive clamping cir-

cuit 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 DS2480 can

translate each character into eight 1–Wire time slots

thereby increasing the data throughput significantly. In

addition, the DS2480 can be set to communicate at four

different data rates including 115.2 kbps, 57.6 kbps and

19.2 kbps with 9.6 kbps being the power–on default.

Command codes received from the host’s crystal con-

trolled UART serve as a reference to continuously cali-

bratetheon–chiptiminggenerator. The DS2480 uses a

unique protocol that merges data and control informa-

tion without requiring control pins. This approach main-

tains compatibility to off–the–shelf serial to wireless

converters allowing easy realization of 1–Wire media

jumpers. The various control functions of the DS2480

are optimized for MicroLAN 1–Wire networks and sup-

port the special needs of all current 1–Wire devices

includingthe Crypto iButton, EPROM–basedAdd–Only

Memories, EEPROM devices and 1–Wire Thermome-

ters.

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与DS2480相关器件

型号	品牌	描述	获取价格	数据表
DS2480B	MAXIM	Serial to 1-Wire Line Driver	获取价格
DS2480B	DALLAS	Serial 1-Wire Line Driver with Load Sensor	获取价格
DS2480B	ADI	串行、1-Wire线驱动器	获取价格
DS2480B/T&R	MAXIM	Line Driver, 1 Func, 1 Driver, PDSO8, 0.150 INCH, SOP-8	获取价格
DS2480B+	MAXIM	Serial to 1-Wire Line Driver	获取价格
DS2480B+R	MAXIM	Serial to 1-Wire Line Driver	获取价格

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