參數(shù)資料
| 型號： | ISL8487IB |
| 廠商： | Intersil |
| 文件頁數(shù)： | 1/13頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC TXRX RS485/422 5V ESD 8-SOIC |
| 標準包裝： | 98 |
| 類型： | 收發(fā)器 |
| 驅動器/接收器數(shù)： | 1/1 |
| 規(guī)程： | RS422，RS485 |
| 電源電壓： | 4.5 V ~ 5.5 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應商設備封裝： | 8-SOICN |
| 包裝： | 管件 |
1
FN6050.7
ISL8487, ISL81483, ISL81487
1/8 Unit Load, 5V, Low Power, High Speed
or Slew Rate Limited, RS-485/RS-422
Transceivers
These Intersil RS-485/RS-422 devices are “fractional” unit
load (UL), BiCMOS, 5V powered, single transceivers that
meet both the RS-485 and RS-422 standards for balanced
communication. Unlike competitive devices, this Intersil
family is specified for 10% tolerance supplies (4.5V to 5.5V).
The ISL81483 and ISL81487 present a 1/8 unit load to the
RS-485 bus, which allows up to 256 transceivers on the
network for large node count systems (e.g., process
automation, remote meter reading systems). The 1/4 UL
ISL8487 allows up to 128 transceivers on the bus. In a
remote utility meter reading system, individual (apartments
for example) utility meter readings are routed to a
concentrator via an RS-485 network, so the high allowed
node count minimizes the number of repeaters required to
network all the meters. Data for all meters is then read out
from the concentrator via a single access port, or a wireless
link.
Slew rate limited drivers on the ISL8487 and ISL81483
reduce EMI, and minimize reflections from improperly
terminated transmission lines, or unterminated stubs in
multidrop and multipoint applications. Data rates up to
250kbps are achievable with these devices.
Data rates up to 5Mbps are achievable by using the
ISL81487, which features higher slew rates.
Receiver (Rx) inputs feature a “fail-safe if open” design,
which ensures a logic high Rx output if Rx inputs are
floating.
Driver (Tx) outputs are short circuit protected, even for
voltages exceeding the power supply voltage. Additionally,
on-chip thermal shutdown circuitry disables the Tx outputs to
prevent damage if power dissipation becomes excessive.
These half duplex devices multiplex the Rx inputs and Tx
outputs to allow transceivers with Rx and Tx disable
functions in 8 lead packages.
Features
Fractional Unit Load Allows up to 256 Devices on the Bus
Specified for 10% Tolerance Supplies
Class 3 ESD Protection (HBM) on all Pins. . . . . . . . >7kV
High Data Rate Version (ISL81487) . . . . . . . up to 5Mbps
Slew Rate Limited Versions for Error Free Data
Transmission (ISL8487, ISL81483) . . . . . . .up to 250kbps
Low Current Shutdown Mode (Except ISL81487) . . 0.5μA
Low Quiescent Supply Current:
- ISL8487, ISL81483. . . . . . . . . . . . . . . . . . 145μA (Max.)
- ISL81487 . . . . . . . . . . . . . . . . . . . . . . . . . 420μA (Max.)
-7V to +12V Common Mode Input Voltage Range
Three State Rx and Tx Outputs
30ns Propagation Delays, 5ns Skew (ISL81487)
Half Duplex Pinouts
Operate from a Single +5V Supply (10% Tolerance)
Current Limiting and Thermal Shutdown for Driver
Overload Protection
Drop-In Replacements for: MAX487 (ISL8487); MAX1483
(ISL81483); MAX1487, LMS1487 (ISL81487)
Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
High Node Count Networks
Automated Utility Meter Reading Systems
Factory Automation
Security Networks
Building Environmental Control Systems
Industrial/Process Control Networks
TABLE 1. SUMMARY OF FEATURES
PART
NUMBER
HALF/FULL
DUPLEX
NO. OF DEVICES
ALLOWED ON BUS
DATA RATE
(Mbps)
SLEW-RATE
LIMITED?
RECEIVER/
DRIVER ENABLE?
QUIESCENT
ICC (μA)
LOW POWER
SHUTDOWN?
PIN
COUNT
ISL8487
Half
128
0.25
Yes
120
Yes
8
ISL81483
Half
256
0.25
Yes
120
Yes
8
ISL81487
Half
256
5
No
Yes
350
No
8
Data Sheet
July 31, 2006
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. 2004, 2006. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
相關PDF資料 |
PDF描述 |
|---|---|
| VE-B11-IU | CONVERTER MOD DC/DC 12V 200W |
| MS3451L18-9SW | CONN RCPT 7POS CBL MNT W/SCKT |
| MS3451L18-9S | CONN RCPT 7POS CBL MNT W/SCKT |
| VE-B1V-IU | CONVERTER MOD DC/DC 5.8V 200W |
| ISL8485IP | IC TXRX RS485/422 5V ESD 8-DIP |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ISL8487IB-T | 功能描述:IC TXRX RS485/422 5V ESD 8-SOIC RoHS:否 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發(fā)器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:25 系列:- 類型:收發(fā)器 驅動器/接收器數(shù):2/2 規(guī)程:RS232 電源電壓:4.5 V ~ 5.5 V 安裝類型:通孔 封裝/外殼:16-DIP（0.300"，7.62mm） 供應商設備封裝:16-PDIP 包裝:管件 |
| ISL8487IBZ | 功能描述:IC TXRX RS485/422 5V ESD 8-SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發(fā)器 系列:- 標準包裝:250 系列:- 類型:收發(fā)器 驅動器/接收器數(shù):2/2 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應商設備封裝:16-TSSOP 包裝:帶卷 (TR) |
| ISL8487IBZ-T | 功能描述:IC TXRX RS485/422 5V ESD 8-SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發(fā)器 系列:- 標準包裝:250 系列:- 類型:收發(fā)器 驅動器/接收器數(shù):2/2 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應商設備封裝:16-TSSOP 包裝:帶卷 (TR) |
| ISL8487IP | 功能描述:IC TXRX RS485/422 5V ESD 8-DIP RoHS:否 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發(fā)器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:25 系列:- 類型:收發(fā)器 驅動器/接收器數(shù):2/2 規(guī)程:RS232 電源電壓:4.5 V ~ 5.5 V 安裝類型:通孔 封裝/外殼:16-DIP（0.300"，7.62mm） 供應商設備封裝:16-PDIP 包裝:管件 |
| ISL8487IPZ | 功能描述:IC TXRX RS485/422 5V ESD 8-DIP RoHS:是 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發(fā)器 系列:- 標準包裝:250 系列:- 類型:收發(fā)器 驅動器/接收器數(shù):2/2 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應商設備封裝:16-TSSOP 包裝:帶卷 (TR) |
發(fā)布緊急采購，3分鐘左右您將得到回復。