参数资料
| 型号： | ISL81387IBZ |
| 厂商： | Intersil |
| 文件页数： | 1/27页 |
| 文件大小： | 0K |
| 描述： | TXRX ESD RS-485/422 2PORT 20SOIC |
| 产品培训模块： | Solutions for Industrial Control Applications |
| 标准包装： | 380 |
| 类型： | 收发器 |
| 驱动器/接收器数： | 2/2 |
| 规程： | RS232，RS422，RS485 |
| 电源电压： | 4.5 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 20-SOIC W |
| 包装： | 管件 |
当前第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页
1
FN6201.3
ISL81387, ISL41387
±
15kV ESD Protected, 5V, Dual Protocol
(RS-232/RS-485) Transceivers
These devices are BiCMOS interface ICs that are user
configured as either a single RS-422, RS-485 differential
transceiver, or as a dual (2 Tx, 2 Rx) RS-232 transceiver.
In RS-232 mode, the on-board charge pump generates
RS-232 compliant ±5V Tx output levels, from a supply as low
as 4.5V. Four small 0.1F capacitors are required for the
charge pump. The transceivers are RS-232 compliant, with
the Rx inputs handling up to
±25V, and the Tx outputs
handling ±12V.
In RS-485 mode, the transceivers support both the RS-485
and RS-422 differential communication standards. The
RS-485 receiver features "full failsafe" operation, so the Rx
output remains in a high state if the inputs are open or
shorted together. The RS-485 transmitter supports up to
three data rates, two of which are slew rate limited for
problem free communications. The charge pump disables in
RS-485 mode, thereby saving power, minimizing noise, and
eliminating the charge pump capacitors.
Both RS-232, RS-485 modes feature loopback and
shutdown functions. The loopback mode internally connects
the Tx outputs to the corresponding Rx input, which
facilitates the implementation of board level self test
functions. The outputs remain connected to the loads during
loopback, so connection problems (e.g., shorted connectors
or cables) can be detected. The shutdown mode disables
the Tx and Rx outputs, disables the charge pump if in
RS-232 mode, and places the IC in a low current (20A)
mode.
The ISL41387 is a QFN packaged device that offers
additional functionality, including a lower speed and edge
rate option (115kbps) for EMI sensitive designs, or to allow
longer bus lengths. It also features a logic supply voltage pin
(VL) that sets the VOH level of logic outputs, and the
switching points of logic inputs, to be compatible with
another supply voltage in mixed voltage systems. The QFN's
choice of active high or low Rx enable pins increases design
flexibility, allowing Tx/Rx direction control via a single signal
by connecting DEN and RXEN together.
For a dual port version of these devices, please see the
ISL81334, ISL41334 data sheet.
Features
5V Powered, User Selectable RS-232 or RS-485, RS-422
Interface Port (Two RS-232 Transceivers or One RS-485,
RS-422 Transceiver)
±15kV (HBM) ESD Protected Bus Pins (RS-232 or
RS-485)
Flow-Through Pinouts Simplify Board Layouts
Pb-Free (RoHS Compliant)
Large (2.7V) Differential VOUT for Improved Noise
Immunity in RS-485, RS-422 Networks
Full Failsafe (Open/Short) Rx in RS-485, RS-422 Mode
Loopback Mode Facilitates Board Self Test Functions
User Selectable RS-485 Data Rates . . . . . . . . . . 20Mbps
- Slew Rate Limited. . . . . . . . . . . . . . . . . . . . . . . 460kbps
- Slew Rate Limited (ISL41387 Only) . . . . . . . . . 115kbps
Fast RS-232 Data Rate . . . . . . . . . . . . . . . Up to 650kbps
Low Current Shutdown Mode. . . . . . . . . . . . . . . . . . .35A
QFN Package Saves Board Space (ISL41387 Only)
Logic Supply Pin (VL) Eases Operation in Mixed Supply
Systems (ISL41387 Only)
Applications
Gaming Applications (e.g., Slot machines)
Single Board Computers
Factory Automation
Security Networks
Industrial/Process Control Networks
Level Translators (e.g., RS-232 to RS-422)
Point of Sale Equipment
TABLE 1. SUMMARY OF FEATURES
PART
NUMBER
NO. OF
PORTS
PACKAGE OPTIONS
RS-485 DATA
RATE (bps)
RS-232 DATA
RATE (kbps)
VL PIN?
ACTIVE H or L
Rx ENABLE?
LOW POWER
SHUTDOWN?
ISL81387
1
20 Ld SOIC, 20 Ld SSOP
20M, 460k
650
NO
H
YES
ISL41387
1
40 Ld QFN (6mmx6mm)
20M, 460k, 115k
650
YES
BOTH
YES
Data Sheet
November 21, 2007
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
| Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2005, 2007. All Rights Reserved.
All other trademarks mentioned are the property of their respective owners.
相关PDF资料 |
PDF描述 |
|---|---|
| MAX1263ACEG+ | IC ADC 12BIT 250KSPS 24-QSOP |
| MS3126F14-15SY | CONN PLUG 15POS STRAIGHT W/SCKT |
| VE-27N-MX-F2 | CONVERTER MOD DC/DC 18.5V 75W |
| MS3126F14-15SX | CONN PLUG 15POS STRAIGHT W/SCKT |
| VE-27N-MX-F1 | CONVERTER MOD DC/DC 18.5V 75W |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL81387IBZ-T | 功能描述:TXRX ESD RS-485/422 2PORT 20SOIC RoHS:是 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:50 系列:- 类型:收发器 驱动器/接收器数:1/1 规程:RS422，RS485 电源电压:4.75 V ~ 5.25 V 安装类型:通孔 封装/外壳:8-DIP（0.300"，7.62mm） 供应商设备封装:8-PDIP 包装:管件 产品目录页面:1402 (CN2011-ZH PDF) |
| ISL81483 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:1/8 Unit Load, 5V, Low Power, High Speed or Slew Rate Limited, RS-485/RS-422 Transceivers |
| ISL81483IB | 功能描述:IC TXRX RS485/422 5V LP 8-SOIC RoHS:否 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:25 系列:- 类型:收发器 驱动器/接收器数:2/2 规程:RS232 电源电压:4.5 V ~ 5.5 V 安装类型:通孔 封装/外壳:16-DIP（0.300"，7.62mm） 供应商设备封装:16-PDIP 包装:管件 |
| ISL81483IB-T | 功能描述:IC TXRX RS485/422 5V LP 8-SOIC RoHS:否 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:25 系列:- 类型:收发器 驱动器/接收器数:2/2 规程:RS232 电源电压:4.5 V ~ 5.5 V 安装类型:通孔 封装/外壳:16-DIP（0.300"，7.62mm） 供应商设备封装:16-PDIP 包装:管件 |
| ISL81483IBZ | 功能描述:IC TXRX RS485/422 5V LP 8-SOIC RoHS:是 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 标准包装:250 系列:- 类型:收发器 驱动器/接收器数:2/2 规程:RS232 电源电压:3 V ~ 5.5 V 安装类型:表面贴装 封装/外壳:16-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:16-TSSOP 包装:带卷 (TR) |
发布紧急采购，3分钟左右您将得到回复。