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參數(shù)資料
| 型號： | ISL8490 |
| 廠商： | Intersil Corporation |
| 英文描述： | 5V, Low Power, High Speed or Slew Rate Limited, RS-485/RS-422 Transceivers |
| 中文描述： | 5V，低功耗，高速或擺率限制，RS-485/RS-422收發(fā)器 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大小： | 507K |
| 代理商： | ISL8490 |
1
FN6046.3
ISL8483, ISL8485, ISL8488,
ISL8489, ISL8490, ISL8491
5V, Low Power, High Speed or Slew Rate
Limited, RS-485/RS-422 Transceivers
The Intersil RS-485/RS-422 devices are 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 ISL8483, ISL8488, and ISL8489 utilize slew rate limited
drivers which reduce EMI, and minimize reflections from
improperly terminated transmission lines, or unterminated
stubs in multidrop and multipoint applications.
Data rates up to 5Mbps are achievable by using the
ISL8485, ISL8490, or ISL8491, which feature higher slew
rates.
All devices present a “single unit load” to the RS-485 bus,
which allows up to 32 transceivers on the network.
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.
The ISL8488 - 91 are configured for full duplex (separate Rx
input and Tx output pins) applications. The ISL8488 and
ISL8490 are offered in space saving 8 lead packages for
applications not requiring Rx and Tx output disable functions
(e.g., point-to-point). Half duplex configurations (ISL8483,
ISL8485) multiplex the Rx inputs and Tx outputs to allow
transceivers with Rx and Tx disable functions in 8 lead
packages.
Features
Specified for 10% Tolerance Supplies
Class 3 ESD Protection (HBM) on all Pins. . . . . . . . >7kV
High Data Rates. . . . . . . . . . . . . . . . . . . . . . up to 5Mbps
Slew Rate Limited Versions for Error Free Data
Transmission at 250kbps (ISL8483, ISL8488, ISL8489)
Single Unit Load Allows up to 32 Devices on the Bus
1nA Low Current Shutdown Mode (ISL8483)
Low Quiescent Current:
- 160
μ
A (ISL8483, ISL8488, ISL8489)
- 340
μ
A (ISL8485, ISL8490, ISL8491)
-7V to +12V Common Mode Input Voltage Range
Three State Rx and Tx Outputs (Except ISL8488,
ISL8490)
30ns Propagation Delays, 5ns Skew (ISL8485, ISL8490,
ISL8491)
Full Duplex and Half Duplex Pinouts
Operate from a Single +5V Supply (10% Tolerance)
Current Limiting and Thermal Shutdown for driver
Overload Protection
Applications
Factory Automation
Security Networks
Building Environmental Control Systems
Industrial/Process Control Networks
Level Translators (e.g., RS-232 to RS-422)
RS-232 “Extension Cords”
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
I
CC
(
μ
A)
LOW POWER
SHUTDOWN
PIN
COUNT
ISL8483
Half
32
0.25
Yes
Yes
160
Yes
8
ISL8485
Half
32
5
No
Yes
340
No
8
ISL8488
Full
32
0.25
Yes
No
160
No
8
ISL8489
Full
32
0.25
Yes
Yes
160
No
14
ISL8490
Full
32
5
No
No
340
No
8
ISL8491
Full
32
5
No
Yes
340
No
14
Data Sheet
December 2003
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2003. All Rights Reserved.
All other trademarks mentioned are the property of their respective owners.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ISL8490E | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:【15kV ESD Protected, 5V, Low Power, High Speed and Slew Rate Limited, Full Duplex, RS-485/RS-422 Transceivers |
| ISL8490EIBZ | 功能描述:IC TXRX RS-485/422 5V 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) |
| ISL8490EIBZ-T | 功能描述:IC TXRX RS-485/422 5V 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) |
| ISL8490IB | 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(chǎn)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 |
| ISL8490IB-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(chǎn)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 |
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