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UT3243L-P28-T

Description
MULTICHANNAEL RS-232 LINE DRIVERS/RECEIVERS
File Size272KB,9 Pages
ManufacturerUNISONIC TECHNOLOGIES CO.,LTD
Websitehttp://www.unisonic.com.tw/
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UT3243L-P28-T Overview

MULTICHANNAEL RS-232 LINE DRIVERS/RECEIVERS

UNISONIC TECHNOLOGIES CO., LTD
UT3243
+3.0V TO +5.5V POWER
SUPPLY, 235KBPS,
MULTICHANNAEL RS-232 LINE
DRIVERS/RECEIVERS
DESCRIPTION
CMOS IC
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
CC
completely
removed.
FEATURES
* 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.)
* 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)
ORDERING INFORMATION
Ordering Number
Lead Free
UT3243L-P28-T
UT3243L-P28-R
UT3243L-R28-T
UT3243L-R28-R
UT3243L-P28-R
Halogen Free
UT3243G-P28-T
UT3243G-P28-R
UT3243G-R28-T
UT3243G-R28-R
Package
TSSOP-28
TSSOP-28
SSOP-28
SSOP-28
Packing
Tube
Tape Reel
Tube
Tape Reel
(1)Packing Type
(2)Package Type
(3)Lead Free
(1) R: Tape Reel
(2) P28: TSSOP-28, R28: SSOP-28
(3) L: Lead Free, G: Halogen Free
www.unisonic.com.tw
Copyright © 2013 Unisonic Technologies Co., Ltd
1 of 9
QW-R502-573.F

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Description MULTICHANNAEL RS-232 LINE DRIVERS/RECEIVERS MULTICHANNAEL RS-232 LINE DRIVERS/RECEIVERS MULTICHANNAEL RS-232 LINE DRIVERS/RECEIVERS MULTICHANNAEL RS-232 LINE DRIVERS/RECEIVERS MULTICHANNAEL RS-232 LINE DRIVERS/RECEIVERS MULTICHANNAEL RS-232 LINE DRIVERS/RECEIVERS MULTICHANNAEL RS-232 LINE DRIVERS/RECEIVERS MULTICHANNAEL RS-232 LINE DRIVERS/RECEIVERS MULTICHANNAEL RS-232 LINE DRIVERS/RECEIVERS
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