UT3223 Datasheet, PDF (1/9 Pages) Unisonic Technologies – MULTICHANNAEL RS-232 LINE DRIVERS/RECEIVERS

UNISONIC TECHNOLOGIES CO., LTD
UT3223
Preliminary
+3.0V TO +5.5V POWER SUPPLY,
250KBPS, MULTICHANNAEL
RS-232 LINE
DRIVERS/RECEIVERS
 DESCRIPTION
The UTC UT3223 consists of 2 drivers and 2 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
250kbps provides compatibility with popular software for communicating
with PCs.
The UTC UT3223 achieves 1µA supply current in shutdown condition.
When the UT3223 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 UT3223 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.
 FEATURES
* Operates With 3.0V~5.5V Power Supply
* Two Drivers and Two Receivers
* Operates Up To 250 kbps
* Designed to Transmit at a Data Rate of 250 kbps
* Low Standby Current (1µA Typical)
* External Capacitors (4*0.1µF)
* Accepts 5.0V Logic Input With 3.3V Supply
* Serial-Mouse Drivability
* Exceeds ±8KV ESD Protection(HBM) for RS-232 I/O Pins
 ORDERING INFORMATION
Ordering Number
UT3223G-P20-R
Package
TSSOP-20
CMOS IC
Packing
Tape Reel
www.unisonic.com.tw
Copyright © 2015 Unisonic Technologies Co., Ltd
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