Datasheet > ISL4243E

ISL4243E

更新时间： 2023-12-20 18:44:18

品牌	Logo	应用领域
瑞萨 - RENESAS		/
页数	文件大小	规格书
14页	678K
描述
QFN Packaged, ±15kV ESD Protected, +2.7V to +5.5V, 10nA, 250kbps, RS-232 Transmitters/Receivers

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数据手册

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ISL4243E 数据手册

DATASHEET

ISL4241E, ISL4243E

QFN Packaged, ±15kV ESD Protected, +2.7V to +5.5V, 10Nanoamp, 250kbps,

RS-232 Transmitters/Receivers

FN8037

Rev 7.00

Jun 10, 2010

Intersil’s ISL4241E, ISL4243E devices are 2.7V to 5.5V

powered RS-232 transmitters/receivers which meet

ElA/TIA-232 and V.28/V.24 specifications, even at

Features

• Pb-Free Available (RoHS compliant)

VCC = 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

power-down functions, reduce the standby supply current to

a 10nA trickle. Tiny 5mmx5mm 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.

• Parameters Fully Specified for 10% Tolerance Supplies

and Full Industrial Temp Range

• Available in Small QFN (5mmx5mm) Package which is

60% Smaller than a 28 Lead TSSOP

• 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 Power-down Features

The ISL4241E, ISL4243E’s 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

32 Ld 5X5 QFN requires 60% less board area than a 28 Ld

TSSOP, and is nearly 20% thinner. The devices also include

a noninverting always-active receiver for “wake-up”

capability.

• 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 Power-down State . . . . . . . . .10nA

Applications

• Any Space Constrained System Requiring RS-232 Ports

- Battery Powered, Hand-Held, and Portable Equipment

- Laptop Computers, Notebooks

The ISL4243E features an automatic power-down 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.

- PDAs and Palmtops, Data Cables

- Cellular/Mobile Phones, Digital Cameras, GPS

Receivers

Related Literature

Table 1 summarizes the features of both the ISL4241E and

ISL4243E, while Application Note AN9863 summarizes the

features of each device comprising the 3V RS-232 family.

• Technical Brief TB363 “Guidelines for Handling and

Processing Moisture Sensitive Surface Mount Devices

• ”Technical Brief TB379 “Thermal Characterization of

Packages for ICs”

• Technical Brief TB389 “PCB Land Pattern Design and

Surface Mount Guidelines for QFN Packages”

TABLE 1. SUMMARY OF FEATURES

AUTOMATIC

POWER-

DOWN

FUNCTION?

NO. OF

MONITOR Rx.

DATA

RATE

(kbps)

MANUAL

POWER-

DOWN?

NO. OF NO.OF

QFN PKG.

Rx. ENABLE

FUNCTION?

READY

OUTPUT?

PART NUMBER

ISL4241E

Tx.

Rx.

AVAILABLE?

)

OUTB

YES

250

YES

ISL4243E

YES

FN8037 Rev 7.00

Jun 10, 2010

Page 1 of 14

12 3 4 5 6 7...14

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与ISL4243E相关器件

型号	品牌	获取价格	描述	数据表
ISL4243EIR	INTERSIL	获取价格	QFN Packaged, +/-15kV ESD Protected, +2.7V to +5.5V, 10Nanoamp, 250kbps, RS-232 Transmitte
ISL4243EIR-T	INTERSIL	获取价格	QFN Packaged, +/-15kV ESD Protected, +2.7V to +5.5V, 10Nanoamp, 250kbps, RS-232 Transmitte
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 +

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