Datasheet > ISL4243EIR-T

ISL4243EIR-T

更新时间： 2024-11-23 22:30:51

品牌	Logo	应用领域
英特矽尔 - INTERSIL		/
页数	文件大小	规格书
13页	366K
描述
QFN Packaged, +/-15kV ESD Protected, +2.7V to +5.5V, 10Nanoamp, 250kbps, RS-232 Transmitters/Receivers

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替代型号

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ISL4243EIR-T 数据手册

ISL4241E, ISL4243E

Data Sheet

May 2004

FN8037.4

QFN Packaged, ±15kV ESD Protected,

+2.7V to +5.5V, 10Nanoamp, 250kbps,

RS-232 Transmitters/Receivers

Features

• Pb-free Available as an Option

• Parameters Fully Specified for 10% Tolerance Supplies

and Full Industrial Temp Range

The Intersil ISL424XE devices are 2.7V to 5.5V powered

RS-232 transmitters/receivers which meet ElA/TIA-232 and

• Available in Small QFN (5mm x 5mm) Package which is

60% Smaller than a 28 Lead TSSOP

V.28/V.24 specifications, even at V

= 3.0V. Additionally,

they provide ±15kV ESD protection (IEC61000-4-2 Air Gap

and Human Body Model) on transmitter outputs and receiver

inputs (RS-232 pins). Targeted applications are PDAs,

Palmtops, and notebook and laptop computers where the

low operational, and even lower standby, power consumption

is critical. Efficient on-chip charge pumps, coupled with

manual and automatic powerdown functions, reduce the

standby supply current to a 10nA trickle. Tiny 5mm x 5mm

Quad Flat No-Lead (QFN) packaging and the use of small,

low value capacitors ensure board space savings as well.

Data rates greater than 250kbps are guaranteed at worst

case load conditions.

• ESD Protection for RS-232 I/O Pins to ±15kV (IEC61000)

• Meets EIA/TIA-232 and V.28/V.24 Specifications at 3V

• RS-232 Compatible with V

= 2.7V

• On-Chip Voltage Converters Require Only Four External

0.1µF Capacitors

• Manual and Automatic Powerdown Features

• Receiver Hysteresis For Improved Noise Immunity

• Guaranteed Minimum Data Rate . . . . . . . . . . . . . 250kbps

• Wide Power Supply Range. . . . . . . Single +2.7V to +5.5V

• Low Supply Current in Powerdown State. . . . . . . . . .10nA

The ISL424XE are 3 driver, 5 receiver devices that, coupled

with the 5x5 QFN package, provide the industry’s smallest,

lowest power complete serial port suitable for PDAs, and

laptop or notebook computers. The 5x5 QFN requires 60%

less board area than a 28 lead TSSOP, and is nearly 20%

thinner. The devices also include a noninverting always-

active receiver for “wake-up” capability.

Applications

• Any Space Constrained System Requiring RS-232 Ports

- Battery Powered, Hand-Held, and Portable Equipment

- Laptop Computers, Notebooks

- PDAs and Palmtops, Data Cables

The ISL4243E features an automatic powerdown function

that powers down the on-chip power-supply and driver

circuits. This occurs when an attached peripheral device is

shut off or the RS-232 cable is removed, conserving system

power automatically without changes to the hardware or

operating system. It powers up again when a valid RS-232

voltage is applied to any receiver input.

- Cellular/Mobile Phones, Digital Cameras, GPS

Receivers

Related Literature

• Technical Brief TB363 “Guidelines for Handling and

Processing Moisture Sensitive Surface Mount Devices

• ”Technical Brief TB379 “Thermal Characterization of

Packages for ICs”

Table 1 summarizes the features of the ISL424XE, while

Application Note AN9863 summarizes the features of each

device comprising the 3V RS-232 family.

• Technical Brief TB389 “PCB Land Pattern Design and

Surface Mount Guidelines for QFN Packages”

TABLE 1. SUMMARY OF FEATURES

NO. OF

MONITOR Rx.

DATA

RATE

(kbps)

MANUAL

POWER- POWERDOWN

DOWN?

YES

AUTOMATIC

PART

NO. OF NO.OF

QFN PKG.

Rx. ENABLE

FUNCTION?

READY

OUTPUT?

NUMBER

Tx.

Rx.

AVAILABLE?

)

FUNCTION?

OUTB

ISL4241E

ISL4243E

YES

250

YES

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.

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

12 3 4 5 6 7...13

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ISL4243EIR-T 替代型号

型号	品牌	替代类型	描述	数据表
ISL4241EIR-T	INTERSIL	完全替代	QFN Packaged, +/-15kV ESD Protected, +2.7V to +5.5V, 10Nanoamp, 250kbps, RS-232 Transmitte
ISL4243EIRZ-T	INTERSIL	类似代替	QFN Packaged, +/-15kV ESD Protected, +2.7V to +5.5V, 10Nanoamp, 250kbps, RS-232 Transmitte

与ISL4243EIR-T相关器件

型号	品牌	获取价格	描述	数据表
ISL4243EIRZ	INTERSIL	获取价格	QFN Packaged, +/-15kV ESD Protected, +2.7V to +5.5V, 10Nanoamp, 250kbps, RS-232 Transmitte
ISL4243EIRZ-T	INTERSIL	获取价格	QFN Packaged, +/-15kV ESD Protected, +2.7V to +5.5V, 10Nanoamp, 250kbps, RS-232 Transmitte
ISL4244E	INTERSIL	获取价格	QFN Packaged, 【15kV ESD Protected, +2.7V to +
ISL4244E	RENESAS	获取价格	QFN Packaged, ±15kV ESD Protected, +2.7V to +
ISL4244EIR	INTERSIL	获取价格	QFN Packaged, 【15kV ESD Protected, +2.7V to +
ISL4244EIR-T	INTERSIL	获取价格	QFN Packaged, 【15kV ESD Protected, +2.7V to +
ISL4244EIRZ	INTERSIL	获取价格	QFN Packaged, 【15kV ESD Protected, +2.7V to +
ISL4244EIRZ-T	INTERSIL	获取价格	QFN Packaged, 【15kV ESD Protected, +2.7V to +
ISL4245E	INTERSIL	获取价格	QFN Packaged, 【15kV ESD Protected, +2.7V to +
ISL4245E	RENESAS	获取价格	QFN Packaged, ±15kV ESD Protected, +2.7V to +

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