UNISONIC TECHNOLOGIES CO., LTD
UT3232
3.0V TO 5.5V LOW POWER
MULTICHANNEL RS-232 LINE
TRANSCEIVERS USING FOR
0.1μF EXTERNAL CAPACITORS
DESCRIPTION
SSOP-16
(209mil)
The UTC
UT3232
has 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.
CMOS IC
SOP-16
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 V
CC
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
Lead Free
Halogen Free
UT3232L-S16-R
UT3232G-S16-R
UT3232L-R16-R
UT3232G-R16-R
UT3232L-P16-R
UT3232G-P16-R
Package
SOP-16
SSOP-16
TSSOP-16
Packing
Tape Reel
Tape Reel
Tape Reel
MARKING
www.unisonic.com.tw
Copyright © 2017 Unisonic Technologies Co., Ltd
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QW-R502-A68.E
UT3232
PIN CONFIGURATION
CMOS IC
PIN DESCRIPTION
PIN NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
PIN NAME
C1+
V+
C1-
C2+
C2-
V-
DOUT2
RIN2
ROUT2
DIN2
DIN1
ROUT1
RIN1
DOUT1
GND
V
CC
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
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QW-R502-A68.E
UT3232
BLOCK DIAGRAM
CMOS IC
DIN1 11
14 DOUT1
DIN2 10
7
DOUT2
UTC
UT3232
ROUT1 12
5kΩ
13 RIN1
ROUT2
9
5kΩ
8
RIN2
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QW-R502-A68.E
UT3232
CMOS IC
ABSOLUTE MAXIMUM RATING
[Over operating free-air temperature range (unless otherwise noted)]
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Voltage Range
V
CC
-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
V
IN
Receivers
-25 ~ +25
V
Drivers
-13.2 ~ +13.2
V
Output Voltage
V
OUT
Receivers
-0.3 ~ V
CC
+0.3
V
Operating Virtual Junction Temperature
T
J
+150
°C
Storage Temperature
T
STG
-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
SYMBOL
SOP-16
SSOP-16
TSSOP-16
θ
JA
RATING
130
160
UNIT
°C/W
Junction to Ambient
RECOMMENDED OPERATING CONDITIONS
(See Note & Table 1)
PARAMETER
SYMBOL
V
CC
V
IH
TEST CONDITIONS
V
CC
=3.3V
V
CC
=5.0V
V
CC
=3.3V
DIN
V
CC
=5.5V
MIN
3.0
4.5
2.0
2.4
TYP
3.3
5.0
MAX
3.6
5.5
UNIT
V
V
V
V
V
V
°C
Supply Voltage
Driver and Control High-level Input
Voltage
Driver and Control Low-level Input
V
IL
DIN
0.8
Voltage
Driver and Control Input Voltage
V
IN
DIN
5.5
Receiver Input Voltage
V
RIN
-25
25
0
70
Operating Free-Air Temperature
T
A
Notes: Test conditions are C1~C4=0.1μF at V
CC
=3.3V±0.3V; C1=0.047μF, C2~C4=0.33μF at V
CC
=5.0V±0.5V.
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QW-R502-A68.E
UT3232
free-air temperature (unless otherwise noted) (see Note 3 & Table 1)]
PARAMETER
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
RECEIVER SECTION
High-Level Output Voltage
Low-Level Output Voltage
Positive-Going Input Threshold
Voltage
SYMBOL
I
CC
V
OH
V
OL
I
OH
I
OL
I
OS
r
O
V
OH
V
OL
No load
DOUT at R
L
=3kΩ to GND, DIN=GND
DOUT at R
L
=3kΩ to GND, DIN=V
CC
V
I
=V
CC
V
I
at GND
V
CC
=3.6V, V
OUT
=0V
V
CC
=5.5V, V
OUT
=0V
V
CC
, V+ and V- =0V, V
OUT
=±2.0V
+5.0
-5.0
TEST CONDITIONS
MIN
TYP
(Note 1)
0.3
+5.4
-5.4
±0.01
±0.01
±35
±35
10M
CMOS IC
ELECTRICAL CHARACTERISTICS
[(over recommended ranges of supply voltage and operating
MAX
1.0
UNIT
mA
V
V
μA
μA
mA
mA
Ω
±1
±1
±60
±60
300
I
OH
=-1.0mA
V
V
CC
-0.6V V
CC
- 0.1V
I
OL
=1.6mA
0.4
V
V
CC
=3.3V
1.5
2.4
V
V
IT+
V
CC
=5.0V
1.8
2.4
V
Negative-Going Input
V
CC
=3.3V
0.6
1.2
V
V
IT-
Threshold Voltage
V
CC
=5.0V
0.8
1.5
V
Input Hysteresis
V
HYS
V
IT+
~V
IT-
0.3
V
Input Resistance
R
I
V
I
=±3.0V~±25V
3
5
7
kΩ
Notes: 1. All typical values are at V
CC
=3.3V or V
CC
=5.0V, and T
A
=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 V
CC
=3.3V±0.3V; C1=0.047μF, C2~C4=0.33μF at V
CC
=5.0V±0.5V.
4. Pulse skew is defined as |t
PLH
−t
PHL
| of each channel of the same device.
SWITCHING CHARACTERISTICS
[over recommended ranges of supply voltage and operating
TYP
(Note 1)
250
300
5
3
35
35
free-air temperature (unless otherwise noted) (see Note 3 and Table 1)]
PARAMETER
DRIVER SECTION
Maximum Data Rate
Pulse Skew (Note 4)
Slew Rate, Transition Region
t
SK(p)
SR(tr)
C
L
=1000pF, R
L
=3kΩ, One Driver
Switching
C
L
=220pF~2500pF, R
L
=3kΩ~7kΩ
R
L
=3kΩ~7kΩ, C
L
=220pF~1000pF
V
CC
=3.3V
C
L
=220pF~2500pF
150
Kbit/s
ns
V/μs
SYMBOL
TEST CONDITIONS
MIN
MAX
UNIT
RECEIVER SECTION
Propagation Delay Time, Low-
t
PLH
C
L
=150pF
300
ns
to High-Level Output
Propagation Delay Time, High-
t
PHL
C
L
=150pF
300
ns
to Low-Level Output
Output Enable Time
t
EN
C
L
=150pF, R
L
=3kΩ
200
ns
Output Disable Time
t
DIS
C
L
=150pF, R
L
=3kΩ
200
ns
Pulse Skew (Note 4)
t
SK(P)
|t
PLH
−t
PHL
|
300
ns
Notes: 1. All typical values are at V
CC
=3.3V or V
CC
=5.0V, and T
A
=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 V
CC
=3.3V±0.3V; C1=0.047μF, C2~C4=0.33μF at V
CC
=5.0V±0.5V.
4. Pulse skew is defined as |t
PLH
−t
PHL
| of each channel of the same device.
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