UT3243AL-Q32-5050-R datasheet(1/10 Pages) UTC

部件名	UT3243AL-Q32-5050-R

功能描述	DRIVERS/RECEIVERS

PDF	10 Pages

Scroll/Zoom	100%

制造商	UTC [Unisonic Technologies]

网页	http://www.utc-ic.com

标志

1 / 10 page

UNISONIC TECHNOLOGIES CO., LTD

UT3243A

CMOS IC

www.unisonic.com.tw

1 of 10

QW-R502-B62.D

+3.0V TO +5.5V POWER

SUPPLY, 235KBPS,

MULTICHANNAEL RS-232 LINE

DRIVERS/RECEIVERS



DESCRIPTION

The UTC UT3243A 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.

QFN-32(5×5)

SSOP-28

(209mil)

1

TSSOP-28

The UTC UT3243A achieves 1µA supply current in shutdown condition. When the UT3243A 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 UT3243A 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 UT3243A 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 VCC completely

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 (R2OUTB)

* Serial-Mouse Drivability

* ESD(HBM) Protected ±15KV(MIN.) for RS-232 Pins



ORDERING INFORMATION

Ordering Number

Lead Free

Halogen Free

Package

Packing

UT3243AL-P28-R

UT3243AG-P28-R

TSSOP-28

Tape Reel

UT3243AL-R28-R

UT3243AG-R28-R

SSOP-28

Tape Reel

UT3243AL-Q32-5050-R

UT3243AG-Q32-5050-R

QFN-32(5×5)

Tape Reel

类似零件编号 - UT3243AL-Q32-5050-R

制造商	部件名	数据表	功能描述
Unisonic Technologies	UT3243	272Kb / 9P	3.0V TO 5.5V POWER SUPPLY, 235KBPS, MULTICHANNAEL RS-232 LINE
	UT3243G-P28-R	272Kb / 9P	MULTICHANNAEL RS-232 LINE DRIVERS/RECEIVERS
	UT3243G-P28-T	272Kb / 9P	MULTICHANNAEL RS-232 LINE DRIVERS/RECEIVERS
	UT3243G-R28-R	272Kb / 9P	MULTICHANNAEL RS-232 LINE DRIVERS/RECEIVERS
	UT3243G-R28-T	272Kb / 9P	MULTICHANNAEL RS-232 LINE DRIVERS/RECEIVERS

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