Datasheet > ISL41334IRZ-T

ISL41334IRZ-T

更新时间： 2024-11-04 04:22:51

品牌	Logo	应用领域
英特矽尔 - INTERSIL		/
页数	文件大小	规格书
28页	1097K
描述
【15kV ESD Protected, Two Port, Dual Protocol Transceivers

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ISL41334IRZ-T 数据手册

ISL81334, ISL41334

Data Sheet

December 20, 2005

FN6202.1

±15kV ESD Protected, Two Port, Dual

Features

Protocol Transceivers

• ±15kV (HBM) ESD Protected Bus Pins (RS-232 or

RS-485)

The ISLX1334 are two port interface ICs where each port

can be independently configured as a single RS-485/422

transceiver, or as a dual (2 Tx, 2 Rx) RS-232 transceiver.

With both ports set to the same mode, two RS-485/422

transceivers, or four RS-232 transceivers are available.

• Two Independent Ports, Each User Selectable for RS-232

(2 Transceivers) or RS-485/422 (1 Transceiver)

• Flow-Through Pinouts Simplify Board Layouts

• Pb-Free Plus Anneal Available (RoHS Compliant)

If either port is in RS-232 mode, the onboard charge pump

generates RS-232 compliant ±5V Tx output levels from a

• Large (2.7V) Differential V

Immunity in RS-485/422 Networks

for Improved Noise

OUT

single V

supply as low as 4.5V. Four small 0.1µF

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.

• Full Failsafe (Open/Short) Rx in RS-485/422 Mode

• Loopback Mode Facilitates Board Self Test Functions

• User Selectable RS-485 Data Rates (ISL41334 Only)

- Fast Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20Mbps

- Slew Rate Limited. . . . . . . . . . . . . . . . . . . . . . . 460kbps

- Slew Rate Limited. . . . . . . . . . . . . . . . . . . . . . . 115kbps

In RS-485 mode, the transceivers support both the RS-485

and RS-422 differential communication standards. The

receivers feature "full failsafe" operation, so the Rx outputs

remain in a high state if the inputs are open or shorted

together. The transmitters support up to three data rates, two

of which are slew rate limited for problem free

communications. The charge pump disables when both

ports are in RS-485 mode, thereby saving power, minimizing

noise, and eliminating the charge pump capacitors.

• Fast RS-232 Data Rate . . . . . . . . . . . . . . . Up to 650kbps

• Low Current Shutdown Mode. . . . . . . . . . . . . . . . . . .42µA

• QFN Package Saves Board Space (ISL41334 Only)

• Logic Supply Pin (V ) Eases Operation in Mixed Supply

Systems (ISL41334 Only)

Both RS-232 and RS-485 modes feature loopback and

shutdown functions. Loopback internally connects the Tx

outputs to the corresponding Rx input, to facilitate board

level self test implementation. The outputs remain connected

to the loads during loopback, so connection problems (e.g.,

shorted connectors or cables) can be detected. Shutdown

mode disables the Tx and Rx outputs, disables the charge

pumps, and places the IC in a low current (µA) mode.

Applications

• Gaming Applications (e.g., Slot Machines)

• Single Board Computers

• Factory Automation

• Security Networks

The ISL41334 is a QFN packaged device that includes two

additional user selectable, lower speed and edge rate

options for EMI sensitive designs, or to allow longer bus

• Industrial/Process Control Networks

• Level Translators (e.g., RS-232 to RS-422)

• Point of Sale Equipment

lengths. It also features a logic supply pin (V ) that sets the

level of logic outputs, and the switching points of logic

• Dual Channel RS-485 Interfaces

inputs, to be compatible with another supply voltage in mixed

voltage systems. The QFN also adds active low Rx enable

pins to increase design flexibility, allowing Tx/Rx direction

control, via a single signal per port, by connecting the

corresponding DE and RE pins together.

For a single port version of these devices, please see the

ISL81387/ ISL41387 data sheet.

TABLE 1. SUMMARY OF FEATURES

NO. OF

PORTS

RS-485 DATA

RATE (bps)

RS-232 DATA

RATE (kbps)

ACTIVE H or L LOW POWER

Rx ENABLE? SHUTDOWN?

PART NUMBER

PACKAGE OPTIONS

V PIN?

ISL81334

ISL41334

28 Ld SOIC, 28 Ld SSOP

40 Ld QFN (6 x 6mm)

20M

650

NONE

YES

20M, 460k, 115k

YES

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.

All other trademarks mentioned are the property of their respective owners.

12 3 4 5 6 7...28

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ISL41334IRZ-T 替代型号

型号	品牌	替代类型	描述	数据表
ISL41334IRZ	INTERSIL	完全替代	【15kV ESD Protected, Two Port, Dual Protocol

与ISL41334IRZ-T相关器件

型号	品牌	获取价格	描述	数据表
ISL41334IRZ-T7A	RENESAS	获取价格	Â±15kV ESD Protected, Two Port, Dual Protocol
ISL41387	INTERSIL	获取价格	【15kV ESD Protected, Dual Protocol (RS-232/RS
ISL41387IRZ	INTERSIL	获取价格	【15kV ESD Protected, 5V, Dual Protocol (RS-23
ISL41387IRZA	RENESAS	获取价格	LINE TRANSCEIVER, PQCC40, 6 X 6 MM, ROHS COMPLIANT, PLASTIC, MO-220VJJD, QFN-40
ISL41387IRZ-T	INTERSIL	获取价格	【15kV ESD Protected, 5V, Dual Protocol (RS-23
ISL4221	INTERSIL	获取价格	QFN Packaged, +/-15kV ESD Protected, +2.7V to +5.5V, 150Nanoamp, 250kBps, RS-232 Transmitt
ISL4221E	INTERSIL	获取价格	QFN Packaged, +/-15kV ESD Protected, +2.7V to +5.5V, 150Nanoamp, 250kBps, RS-232 Transmitt
ISL4221E	RENESAS	获取价格	QFN Packaged, ±15kV ESD Protected, +2.7V to +
ISL4221E_07	INTERSIL	获取价格	QFN Packaged, 【15kV ESD Protected, +2.7V to +
ISL4221EIR	INTERSIL	获取价格	QFN Packaged, +/-15kV ESD Protected, +2.7V to +5.5V, 150Nanoamp, 250kBps, RS-232 Transmitt

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