参数资料
型号: DS2480B+
厂商: Maxim Integrated Products
文件页数: 18/32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)
DS2480B
Maxim Integrated........................................................................................................................................................................................... 25
Figure 11a. UART DIRECT
SIN (RXD)
SOUT (TXD)
UART
or C
Start
Stop
1
0
L
M
1-Wire Bus
Return
12 V
GND
1-W
POL
VDD
VPP
RXD
TXD
DS2480B
5V
Regulator
5 V
* only one DS950x ESD protection device with 5V
With EPROM Programming
5V Operation Only
GND
1-W
POL
VDD
VPP
RXD
TXD
DS2480B
*
470 pF
62 Ohms
Optional filter
DS9503
Figure 11b. ±5V RS232
SIN (RXD)
SOUT (TXD)
UART
or C
Start
Stop
1
0
L
M
1-Wire Bus
Return
DTR
Power Stealing
GND
1-W
POL
VPP
VDD
RXD
TXD
DS2480B
62 Ohms
Optional filter
RTS
See Text
22 F
0.1 F
DS9503
470 pF
The signals DTR and RTS provide the power to operate the DS2480B. The resistor in the TXD line and
the Schottky diode limit the negative voltage at the TXD pin of the DS2480B to 0.3V maximum. The
resistor is typically 4.7k. If the inverting driver is current-limited to 1mA the resistor is not required.
From the DS2480B’s perspective, this circuit will work with inverted signals of ±5V as well as 0 to 5V.
Depending on the voltage levels the host expects, it may be necessary to generate a negative voltage on
the RXD line. Figure 11c shows how this can be accomplished for a true RS232C system.
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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