Datasheet

UNISONIC TECHNOLOGIES CO., LTD
UT3232
Preliminary
CMOS IC
3.0V TO 5.5V LOW POWER
MULTICHANNEL RS-232 LINE
TRANSCEIVERS USING FOR
0.1μF EXTERNAL CAPACITORS
SOP-16

DESCRIPTION
The UTC UT3232 have two receivers and two drivers, and a dual
charge-pump circuit. The device meets the requirements of
TIA/EIA-232-F and provides the electrical interface between an
asynchronous communication controller and the serial-port connector.
The charge pump and four small external capacitors allow operation
from a single 3.0V to 5.5V supply. The device operates at data
signaling rates up to 250kbit/s and a maximum of 35V/μs driver output
slew rate.

TSSOP-16
FEATURES
* Exceeds ±8KV ESD Protection(HBM) for RS-232 I/O Pins
* Meets the Requirements of TIA/EIA-232-F and ITU V.28 Standards
* Operates With 3.0V to 5.5V VCC Supply
* Operates Up To 250kbit/s Data Rate
* Two Drivers and Two Receivers
* External Capacitors 4×0.1μF
* Accepts 5.0V Logic Input With 3.3V Supply

ORDERING INFORMATION
Ordering Number
UT3232G-S16-R
UT3232G-P16-R

Package
SOP-16
TSSOP-16
Packing
Tape Reel
Tape Reel
MARKING
www.unisonic.com.tw
Copyright © 2015 Unisonic Technologies Co., Ltd
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Preliminary

PIN CONFIGURATION

PIN DESCRIPTION
PIN NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
PIN NAME
C1+
V+
C1C2+
C2VDOUT2
RIN2
ROUT2
DIN2
DIN1
ROUT1
RIN1
DOUT1
GND
VCC
CMOS IC
DESCRIPTION
Positive Terminal of Voltage-Doubler Charge-Pump Capacitor
+5.5V Generated by the Charge Pump
Negative Terminal of Voltage-Doubler Charge-Pump Capacitor
Positive Terminal of Inverting Charge-Pump Capacitor
Negative Terminal of Inverting Charge-Pump Capacitor
-5.5V Generated by the Charge Pump
RS-232 Driver Outputs
RS-232 Receiver Inputs
TTL/CMOS Receiver Outputs
TTL/CMOS Driver Inputs
TTL/CMOS Driver Inputs
TTL/CMOS Receiver Outputs
RS-232 Receiver Inputs
RS-232 Driver Outputs
Ground
+3.0V to +5.5V Supply Voltage
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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UT3232

Preliminary
CMOS IC
BLOCK DIAGRAM
DIN1 11
14 DOUT1
DIN2 10
7
DOUT2
UTC
UT3232
13 RIN1
ROUT1 12
5kΩ
ROUT2
9
8
RIN2
5kΩ
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
Preliminary
CMOS IC
ABSOLUTE MAXIMUM RATING [Over operating free-air temperature range (unless otherwise noted)]
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Voltage Range
VCC
-0.3 ~ +6.0
V
Positive Output Supply Voltage Range (Note 2)
V+
-0.3 ~ +7.0
V
Negative Output Supply Voltage Range (Note 2)
V+0.3 ~ -7.0
V
Supply Voltage Difference (Note 2)
V+ - V+13
V
Drivers
-0.3 ~ +6.0
V
Input Voltage
VIN
Receivers
-25 ~ +25
V
Drivers
-13.2 ~ +13.2
V
Output Voltage
VOUT
Receivers
-0.3 ~ VCC+0.3
V
Operating Virtual Junction Temperature
TJ
+150
°C
Storage Temperature
TSTG
-65 ~ + 150
°C
Notes: 1. Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
2. All voltages are with respect to network GND.

THERMAL DATA
PARAMETER
Junction to Ambient

SYMBOL
SOP-16
TSSOP-16
θJA
RATING
105
118
UNIT
°C/W
RECOMMENDED OPERATING CONDITIONS (See Note & Table 1)
PARAMETER
Supply Voltage
SYMBOL
VCC
TEST CONDITIONS
VCC=3.3V
VCC=5.0V
VCC=3.3V
DIN
VCC=5.5V
MIN
3.0
4.5
2.0
2.4
TYP
3.3
5.0
MAX
3.6
5.5
Driver and Control High-level Input
VIH
Voltage
Driver and Control Low-level Input
VIL
DIN
0.8
Voltage
Driver and Control Input Voltage
VIN
DIN
5.5
Receiver Input Voltage
VRIN
-25
25
0
70
Operating Free-Air Temperature
TA
Notes: Test conditions are C1~C4=0.1μF at VCC=3.3V±0.3V; C1=0.047μF, C2~C4=0.33μF at VCC=5.0V±0.5V.
UNISONIC TECHNOLOGIES CO., LTD
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UNIT
V
V
V
V
V
V
°C
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CMOS IC

ELECTRICAL CHARACTERISTICS [(over recommended ranges of supply voltage and operating
free-air temperature (unless otherwise noted) (see Note 3 & Table 1)]
PARAMETER
SYMBOL
Input Leakage Current
Supply Current
DRIVER SECTION
High-Level Output Voltage
Low-Level Output Voltage
High-Level Input Current
Low-Level Input Current
Short-Circuit Output Current
(Note 2)
Output Resistance
Output Leakage Current
RECEIVER SECTION
High-Level Output Voltage
Low-Level Output Voltage
Positive-Going Input Threshold
Voltage
IIN
ICC
DIN
No load
VOH
VOL
IOH
IOL
DOUT at RL=3kΩ to GND, DIN=GND
DOUT at RL=3kΩ to GND, DIN=VCC
VI=VCC
VI at GND
VCC=3.6V, VOUT=0V
VCC=5.5V, VOUT=0V
VCC, V+ and V- =0V, VOUT=±2.0V
VCC=3.0V~5.5V, VOUT=±12V
IOS
rO
IOFF
VOH
VOL
VIT+
TEST CONDITIONS
IOH=-1.0mA
IOL=1.6mA
VCC=3.3V
VCC=5.0V
VCC=3.3V
VCC=5.0V
VIT+~VIT-
MIN
+5.0
-5.0
300
TYP
(Note 1)
±0.01
0.3
+5.4
-5.4
±0.01
±0.01
±35
±35
10M
MAX
UNIT
±1
1.0
μA
mA
±1
±1
±60
±60
V
V
μA
μA
mA
mA
Ω
μA
±25
VCC-0.6V
VCC- 0.1V
1.5
1.8
1.2
1.5
0.3
±0.05
5
0.4
2.4
2.4
V
V
V
V
V
V
V
µA
kΩ
0.6
Negative-Going Input
VITThreshold Voltage
0.8
Input Hysteresis
VHYS
Output Leakage Current
IOFF
±10
Input Resistance
RI
VI=±3.0V~±25V
3
7
Notes: 1. All typical values are at VCC=3.3V or VCC=5.0V, and TA=25°C.
2. Short-circuit durations should be controlled to prevent exceeding the device absolute power-dissipation
ratings, and not more than one output should be shorted at a time.
3. Test conditions are C1~C4=0.1μF at VCC=3.3V±0.3V; C1=0.047μF, C2~C4=0.33μF at VCC=5.0V±0.5V.
4. Pulse skew is defined as |tPLH−tPHL| of each channel of the same device.

SWITCHING CHARACTERISTICS [over recommended ranges of supply voltage and operating
free-air temperature (unless otherwise noted) (see Note 3 and Table 1)]
PARAMETER
SYMBOL
TEST CONDITIONS
tSK(p)
CL=1000pF, RL=3kΩ, One Driver
Switching
CL=220pF~2500pF, RL =3kΩ~7kΩ
RL =3kΩ~7kΩ, CL=220pF~1000pF
VCC=3.3V
CL=220pF~2500pF
MIN
TYP
(Note 1)
150
250
MAX
UNIT
DRIVER SECTION
Maximum Data Rate
Pulse Skew (Note 4)
Slew Rate, Transition Region
SR(tr)
Kbit/s
300
5
3
ns
35
35
V/μs
RECEIVER SECTION
Propagation Delay Time, LowtPLH
CL=150pF
300
ns
to High-Level Output
Propagation Delay Time, HightPHL
CL=150pF
300
ns
to Low-Level Output
Output Enable Time
tEN
CL=150pF, RL=3kΩ
200
ns
Output Disable Time
tDIS
CL=150pF, RL=3kΩ
200
ns
Pulse Skew (Note 4)
tSK(P)
|tPLH−tPHL|
300
ns
Notes: 1. All typical values are at VCC=3.3V or VCC=5.0V, and TA=25°C.
2. Short-circuit durations should be controlled to prevent exceeding the device absolute power-dissipation
ratings, and not more than one output should be shorted at a time.
3. Test conditions are C1~C4=0.1μF at VCC=3.3V±0.3V; C1=0.047μF, C2~C4=0.33μF at VCC=5.0V±0.5V.
4. Pulse skew is defined as |tPLH−tPHL| of each channel of the same device.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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
Preliminary
CMOS IC
TYPICAL APPLICATION CIRCUIT
Table1. Typical Operating Circuit and Capacitor Values
VCC (V)
3.0~3.6
3.15~3.6
4.5~5.5
3.0~5.5
C1 (µF)
0.22
0.1
0.047
0.22
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C2, C3, C4 (µF)
0.22
0.1
0.33
1.0
CBYPASS (µF)
0.22
0.1
0.047
0.22
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Preliminary
CMOS IC
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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