Datasheet > ISL4270EIR

ISL4270EIR

更新时间： 2024-11-03 22:47:59

品牌	Logo	应用领域
英特矽尔 - INTERSIL		驱动器接口集成电路
页数	文件大小	规格书
13页	327K
描述
QFN Packaged, +/-15kV ESD Protected, +3V to +5.5V, 300nA, 250kbps, RS-232 Transceivers with Enhanced Automatic Powerdown and a Separate Logic Supply

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ISL4270EIR 数据手册

ISL4270E

Data Sheet

August 2004

FN6041.1

QFN Packaged, +/-15kV ESD Protected,

+3V to +5.5V, 300nA, 250kbps, RS-232

Transceivers with Enhanced Automatic

Powerdown and a Separate Logic Supply

Features

• Available in Near Chip Scale QFN (5mmx5mm) Package

• V Supply Pin for Compatibility with Mixed Voltage

Systems

The Intersil ISL4270E is a 3.0V to 5.5V powered RS-232

transceiver which meets ElA/TIA-232 and V.28/V.24

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

• Manual and Enhanced Automatic Powerdown Features

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

specifications, even at V

= 3.0V. Additionally, it provides

±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 enhanced automatic powerdown functions, reduce the

standby supply current to a 300nA 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.

• On-Chip Charge Pumps Require Only Four External

0.1µF Capacitors

• Receivers Stay Active in Powerdown

• Very Low Supply Current . . . . . . . . . . . . . . . . . . . . 300µA

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

• Wide Power Supply Range. . . . . . . . Single +3V to +5.5V

• Low Supply Current in Powerdown State. . . . . . . . 300nA

• Pb-Free Available (RoHS Compliant)

The ISL4270E features a V pin that adjusts the logic pin

output levels and input thresholds to values compatible with

Applications

the V

powering the external logic (e.g., a UART).

• Any System Requiring RS-232 Communication Ports

- Battery Powered, Hand-Held, and Portable Equipment

- Laptop Computers, Notebooks, Palmtops

- Digital Cameras

This device includes an enhanced automatic powerdown

function which powers down the on-chip power-supply and

driver circuits. This occurs when all receiver and transmitter

inputs detect no signal transitions for a period of 30 seconds.

It power back up, automatically, whenever it senses a

transition on any transmitter or receiver input.

- PDA’s and PDA Cradles

- Cellular/Mobile Phones

Ordering Information

Table 1 summarizes the features of the ISL4270E, while

Application Note AN9863 summarizes the features of each

device comprising the 3V RS-232 family.

TEMP.

RANGE ( C)

PKG. DWG.

PART NO.

PACKAGE

32 Ld QFN

ISL4270EIR

-40 to 85

L32.5x5

ISL4270EIRZ

(See Note)

-40 to 85

32 Ld QFN

(Pb-free)

*Add “-T” suffix to part number for tape and reel packaging.

NOTE: Intersil Pb-free products employ special Pb-free material

sets; molding compounds/die attach materials and 100% matte tin

plate termination finish, which are RoHS compliant and compatible

with both SnPb and Pb-free soldering operations. Intersil Pb-free

products are MSL classified at Pb-free peak reflow temperatures that

meet or exceed the Pb-free requirements of IPC/JEDEC J STD-

020C.

TABLE 1. SUMMARY OF FEATURES

NO. OF NO.OF DATARATE Rx. ENABLE LOGIC

PART

MANUAL

ENHANCED AUTOMATIC

NUMBER

Tx.

Rx.

(kbps)

FUNCTION?

SUPPLY PIN?

POWER- DOWN? POWERDOWN FUNCTION?

ISL4270E

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.

12 3 4 5 6 7...13

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ISL4270EIR 替代型号

型号	品牌	替代类型	描述	数据表
ISL4270EIRZ	INTERSIL	类似代替	QFN Packaged, +/-15kV ESD Protected, +3V to +5.5V, 300nA, 250kbps, RS-232 Transceivers wit

与ISL4270EIR相关器件

型号	品牌	获取价格	描述	数据表
ISL4270EIR-T	INTERSIL	获取价格	QFN Packaged, +/-15kV ESD Protected, +3V to +5.5V, 300nA, 250kbps, RS-232 Transceivers wit
ISL4270EIRZ	INTERSIL	获取价格	QFN Packaged, +/-15kV ESD Protected, +3V to +5.5V, 300nA, 250kbps, RS-232 Transceivers wit
ISL4270EIRZ-T	RENESAS	获取价格	±15kV ESD Protected, +3V to +5.5V, 300nA, 250
ISL43110	INTERSIL	获取价格	Low-Voltage, Single Supply, SPST, High Performance Analog Switches
ISL43110_05	INTERSIL	获取价格	Low-Voltage, Single Supply, SPST, High Performance Analog Switches
ISL43110IB	INTERSIL	获取价格	Low-Voltage, Single Supply, SPST, High Performance Analog Switches
ISL43110IB-T	INTERSIL	获取价格	Low-Voltage, Single Supply, SPST, High Performance Analog Switches
ISL43110IBZ	INTERSIL	获取价格	Low-Voltage, Single Supply, SPST, High Performance Analog Switches
ISL43110IBZ	ROCHESTER	获取价格	1-CHANNEL, SGL POLE SGL THROW SWITCH, PDSO8, LEAD FREE, PLASTIC, MS-012-AA, SOIC-8
ISL43110IBZ-T	INTERSIL	获取价格	Low-Voltage, Single Supply, SPST, High Performance Analog Switches

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