Datasheet > UT3243L-R28-T

UT3243L-R28-T

更新时间： 2024-02-16 11:21:45

品牌	Logo	应用领域
友顺 - UTC		接口集成电路
页数	文件大小	规格书
9页	266K
描述
Line Transceiver

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技术参数
数据手册

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UT3243L-R28-T 技术参数

生命周期：	Active	包装说明：	,
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.62
接口集成电路类型：	LINE TRANSCEIVER	Base Number Matches：	1

UT3243L-R28-T 数据手册

UNISONIC TECHNOLOGIES CO., LTD

UT3243

CMOS IC

+3.0V TO +5.5V POWER

SUPPLY, 235KBPS,

MULTICHANNAEL RS-232 LINE

DRIVERS/RECEIVERS



DESCRIPTION

The UTC UT3243 consists of 3 drivers and 5 receivers. It meets

ElA/TIA-232 and V.28/V.24 specifications, it intended for notebook

computer applications. A high-efficiency, dual charge-pumps power

supply and a low-dropout transmitter combine to deliver true RS-232

performance from a single +3.0V ~ +5.5V power supply. A

guaranteed data rate of 120kbps provides compatibility with popular

software for communicating with PCs.

The UTC UT3243 achieves 1µA supply current in shutdown condition. When the UT3243 doesn’t detect a valid

signal level on its receiver inputs, the on-board power supply and drivers will shutdown, and when a valid level is

applied to any RS-232 receiver input, then the system turns on again. Therefore, the system saves power without

changes to the existing BIOS or operating system.

The UTC UT3243 requires only 0.1µF capacitors in 3.3V operation, and can operate from input voltages ranging

from +3.0V ~ +5.5V. It is ideal for 3.3V-only systems, 5.0V-only systems, or mixed 3.3V and 5.0V systems that

require true RS-232 performance.

The UTC UT3243 includes one complementary always-active receiver that can monitor an external device (such

as a modem) in shutdown, without forward biasing the protection diodes in a UART that may have V_CCcompletely

removed.



FEATURES

* Operates With 3.0V ~ 5.5V Power Supply

* Three Drivers and Five Receivers

* Operates Up To 235 kbps

* Designed to Transmit at a Data Rate of 235 kbps

* Low Standby Current (1uA Typical)

* External Capacitors (4*0.1µF)

* Accepts 5.0V Logic Input With 3.3V Supply

* Always-Active Non-inverting Receiver Output (R_2OUTB

* Serial-Mouse Drivability

)

* ESD(HBM) Protected ±8KV(MIN.)



ORDERING INFORMATION

Ordering Number

Lead Free

Package

Packing

Halogen Free

UT3243L-P28-T

UT3243L-P28-R

UT3243L-R28-T

UT3243L-R28-R

UT3243G-P28-T

UT3243G-P28-R

UT3243G-R28-T

UT3243G-R28-R

TSSOP-28

SSOP-28

Tube

Tape Reel

Tube

Tape Reel

UT3243L-P28-R

(1) R: Tape Reel

(1)Packing Type

(2) P28: TSSOP-28, R28: SSOP-28

(3) L: Lead Free, G: Halogen Free

(2)Package Type

(3)Lead Free

www.unisonic.com.tw

1 of 9

QW-R502-573.F

12 3 4 5 6 7...9

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