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参数资料
| 型号： | SN75HVD08 |
| 厂商： | Texas Instruments, Inc. |
| 英文描述： | 3.3/5-V RS-485 Transceiver |
| 中文描述： | 3.3/5V RS-485 收发器 |
| 文件页数： | 3/14页 |
| 文件大小： | 290K |
| 代理商： | SN75HVD08 |
www.ti.com
AN OPTO ALTERNATIVE
SN65HVD08
Local Power
Source
Rest of
Board
Opto
Isolators
Local Power
Source
Rest of
Board
Opto
Isolators
+5 V
–5 V
Bus
+5 V
“1”
+5 V
DE/RE
Data
(I/O)
Side A
Side B
Channel 1
Channel 2
D2A
GA
VSB
D2B
D1B
GA
D1A
VSA
R/T1A
R/T1B
R/T2B
R/T2A
D
A
DE
RE
R
B
SN65HVD08
ISO150
SN75HVD08, SN65HVD08
SLLS550A – NOVEMBER 2002 – REVISED MAY 2003
The ISO150 is a two-channel, galvanically isolated
data coupler capable of data rates of 80 Mbps. Each
channel can be individually programmed to transmit
data in either direction.
Data is transmitted across the isolation barrier by
coupling complementary pulses through high-voltage
0.4-pF capacitors. Receiver circuitry restores the
pulses to standard logic levels. Differential signal
transmission rejects isolation-mode voltage transients
up to 1.6 kV/ms.
ISO150 avoids the problems commonly associated
with opto-couplers. Optically-isolated couplers require
high current pulses and allowance must be made for
LED aging. The ISO150's Bi-CMOS circuitry operates
at 25 mW per channel with supply voltage range
matching that of the SN65HVD08 of 3 V to 5.5 V.
Figure 16 shows a typical circuit.
Figure 15. Distribution of Isolated Power
The features of the SN65HVD08 are particularly good
for the application of Figure 15. Due to added supply
source impedance, the low quiescent current require-
ments and wide supply voltage tolerance allow for the
poorer load regulation.
Figure 16. Isolated RS-485 Interface
11
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| SNC-20-X-2-2-SC/APC-2-X | FIBER OPTIC SPLITTER/COUPLER, 2X2PORT, 80/20, PANEL MOUNT, SC/APC CONNECTOR |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SN75HVD08D | 功能描述:RS-485接口IC 3.3/5-V RS-485 Transceiver RoHS:否 制造商:Texas Instruments 数据速率:250 Kbps 工作电源电压:3.3 V 电源电流:750 uA 工作温度范围:- 40 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| SN75HVD08DG4 | 功能描述:总线收发器 3.3/5-V RS-485 Transceiver RoHS:否 制造商:Fairchild Semiconductor 逻辑类型:CMOS 逻辑系列:74VCX 每芯片的通道数量:16 输入电平:CMOS 输出电平:CMOS 输出类型:3-State 高电平输出电流:- 24 mA 低电平输出电流:24 mA 传播延迟时间:6.2 ns 电源电压-最大:2.7 V, 3.6 V 电源电压-最小:1.65 V, 2.3 V 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-48 封装:Reel |
| SN75HVD08DR | 功能描述:RS-485接口IC 3.3/5-V RS-485 Transceiver RoHS:否 制造商:Texas Instruments 数据速率:250 Kbps 工作电源电压:3.3 V 电源电流:750 uA 工作温度范围:- 40 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| SN75HVD08DRG4 | 功能描述:总线收发器 3.3/5-V RS-485 Transceiver RoHS:否 制造商:Fairchild Semiconductor 逻辑类型:CMOS 逻辑系列:74VCX 每芯片的通道数量:16 输入电平:CMOS 输出电平:CMOS 输出类型:3-State 高电平输出电流:- 24 mA 低电平输出电流:24 mA 传播延迟时间:6.2 ns 电源电压-最大:2.7 V, 3.6 V 电源电压-最小:1.65 V, 2.3 V 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-48 封装:Reel |
| SN75HVD08P | 功能描述:RS-485接口IC 3.3/5-V RS-485 Transceiver RoHS:否 制造商:Texas Instruments 数据速率:250 Kbps 工作电源电压:3.3 V 电源电流:750 uA 工作温度范围:- 40 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
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