Datasheet > ISL8485

ISL8485

更新时间： 2024-11-10 14:58:23

品牌	Logo	应用领域
瑞萨 - RENESAS		/
页数	文件大小	规格书
16页	947K
描述
5V, Half Duplex, 5Mbps, RS-485/RS-422 Transceiver

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ISL8485 数据手册

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ISL8485, ISL8490, ISL8491

5V, Low Power, High Speed, RS-485/RS-422 Transceivers

The ISL8485, ISL8490, and ISL8491 RS-485/RS-422

Features

devices are BiCMOS 5V powered, single transceivers that

meet both the RS-485 and RS-422 standards for balanced

communication. Unlike competitive devices, this family is

specified for 10% tolerance supplies (4.5V to 5.5V).

• Specified for 10% tolerance supplies

• Class 3 ESD protection (HBM) on all pins: 7kV

• High data rates: up to 5Mbps

The ISL8485, ISL8490, and ISL8491 feature data rates up to

5Mbps.

• Single unit load allows up to 32 devices on the bus

• Low quiescent current: 500µA

All devices present a single unit load to the RS-485 bus,

which allows up to 32 transceivers on the network.

• -7V to +12V common-mode input voltage range

• Three state Rx and Tx outputs (except ISL8490)

• 30ns propagation delays, 5ns skew

The receiver (Rx) inputs feature a “fail-safe if open” design,

which ensures a logic high Rx output if the Rx inputs are

floating.

• Full duplex and half duplex pinouts

The 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.

• Operation from a single +5V supply (10% tolerance)

• Current limiting and thermal shutdown for driver overload

protection

• Pb-free plus anneal (RoHS compliant)

The ISL8490 and ISL8491 are configured for full duplex

(separate Rx input and Tx output pins) applications. Half

duplex configurations (ISL8485) multiplex the Rx inputs and

Tx outputs to allow transceivers with Rx and Tx disable

functions in 8 Ld packages.

Applications

• Factory automation

• Security networks

• Building environmental control systems

• Industrial/process control networks

• Level translators (for example, RS-232 to RS-422)

• RS-232 “extension cords”

FN6046 Rev 10.02

Oct 2, 2023

Page 1 of 15

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与ISL8485相关器件

型号	品牌	获取价格	描述	数据表
ISL8485CB	INTERSIL	获取价格	5V, Low Power, High Speed or Slew Rate Limited, RS-485/RS-422 Transceivers
ISL8485CB	ROCHESTER	获取价格	LINE TRANSCEIVER, PDSO8, PLASTIC, MS-012AA, SOIC-8
ISL8485CB-T	INTERSIL	获取价格	5V, Low Power, High Speed or Slew Rate Limited, RS-485/RS-422 Transceivers
ISL8485CBZ	INTERSIL	获取价格	5V, Low Power, High Speed or Slew Rate Limited, RS-485/RS-422 Transceivers
ISL8485CBZ	ROCHESTER	获取价格	LINE TRANSCEIVER, PDSO8, ROHS COMPLIANT, PLASTIC, MS-012AA, SOIC-8
ISL8485CBZ-T	INTERSIL	获取价格	5V, Low Power, High Speed or Slew Rate Limited, RS-485/RS-422 Transceivers
ISL8485CP	INTERSIL	获取价格	5V, Low Power, High Speed or Slew Rate Limited, RS-485/RS-422 Transceivers
ISL8485CP	ROCHESTER	获取价格	LINE TRANSCEIVER, PDIP8, PLASTIC, MS-001BA, DIP-8
ISL8485CPZ	INTERSIL	获取价格	5V, Low Power, High Speed or Slew Rate Limited, RS-485/RS-422 Transceivers
ISL8485CPZ	ROCHESTER	获取价格	LINE TRANSCEIVER, PDIP8, ROHS COMPLIANT, PLASTIC, MS-001BA, DIP-8

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