1
Rev. 11/14/02
SP3223E +3.0V to +5.5V RS-232 Transceivers
Copyright 2002 Sipex Corporation
SP3223E/3243E
Intelligent +3.0V to +5.5V RS-232 Transceivers
The SP3223E and 3243E products are RS-232 transceiver solutions intended for portable or
hand-held applications such as notebook and palmtop computers. The SP3223E and 3243E
use an internal high-efficiency, charge-pump power supply that requires only 0.1
F capacitors
in 3.3V operation. This charge pump and Sipex's driver architecture allow the SP3223E/
3243E series to deliver compliant RS-232 performance from a single power supply ranging
from +3.3V to +5.0V. The SP3223E is a 2-driver/2-receiver device, and the SP3243E is a
3-driver/5-receiver device ideal for laptop/notebook computer and PDA applications.
The SP3243E includes one complementary receiver that remains alert to monitor an external
device's Ring Indicate signal while the device is shutdown.
The AUTO ON-LINE
feature allows the device to automatically "wake-up" during a shutdown
state when an RS-232 cable is connected and a connected peripheral is turned on. Otherwise,
the device automatically shuts itself down drawing less than 1
A.
Meets true EIA/TIA-232-F Standards
from a +3.0V to +5.5V power supply
Interoperable with EIA/TIA-232 and
adheres to EIA/TIA-562 down to a +2.7V
power source
AUTO ON-LINE
circuitry automatically
wakes up from a 1
A shutdown
Minimum 120Kbps data rate under load
Regulated Charge Pump Yields Stable
RS-232 Outputs Regardless of V
CC
Variations
Enhanced ESD Specifications:
+15KV Human Body Model
+
15KV IEC1000-4-2 Air Discharge
+
8KV IEC1000-4-2 Contact Discharge
DESCRIPTION
SELECTION TABLE
Applicable U.S. Patents - 5,306,954; and other patents pending.
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8
2
Rev. 11/14/02
SP3223E +3.0V to +5.5V RS-232 Transceivers
Copyright 2002 Sipex Corporation
2
NOTE 1: V+ and V- can have maximum magnitudes of 7V, but their absolute difference cannot exceed 13V.
ABSOLUTE MAXIMUM RATINGS
These are stress ratings only and functional operation
of the device at these ratings or any other above those
indicated in the operation sections of the specifications
below is not implied. Exposure to absolute maximum
rating conditions for extended periods of time may
affect reliability and cause permanent damage to the
device.
V
CC
.......................................................-0.3V to +6.0V
V+ (NOTE 1).......................................-0.3V to +7.0V
V- (NOTE 1)........................................+0.3V to -7.0V
V+ + |V-| (NOTE 1)...........................................+13V
I
CC
(DC V
CC
or GND current).........................+100mA
Input Voltages
TxIN, ONLINE,
SHUTDOWN, EN (SP3223E).................-0.3V to +6.0V
RxIN...................................................................+15V
Output Voltages
TxOUT...............................................................+15V
RxOUT, STATUS.......................-0.3V to (V
CC
+ 0.3V)
Short-Circuit Duration
TxOUT.....................................................Continuous
Storage Temperature......................-65
C to +150
C
Unless otherwise noted, the following specifications apply for V
CC
= +3.0V to +5.5V with T
AMB
= T
MIN
to T
MAX
.
Typical values apply at V
CC
= +3.3V or +5.0V and T
AMB
= 25
C.
SPECIFICATIONS
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=
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=
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m
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=
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=
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C
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V
,
d
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T
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3
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3
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=
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5
2
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=
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0
.
5
+
r
o
V
3
.
3
+
=
,
(
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3
2
2
3
P
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,
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N
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,
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T
T
B
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0
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1
-
=
Power Dissipation per package
28-pin PDIP (derate 16.0mW/
o
C above+70
o
C).....1300mW
20-pin SSOP (derate 9.25mW/
o
C above +70
o
C)....750mW
20-pin TSSOP (derate 11.1mW/
o
C above +70
o
C)..900mW
28-pin SOIC (derate 12.7mW/
o
C above +70
o
C)...1000mW
28-pin SSOP (derate 11.2mW/
o
C above +70
o
C)....900mW
3
Rev. 11/14/02
SP3223E +3.0V to +5.5V RS-232 Transceivers
Copyright 2002 Sipex Corporation
R
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F
SPECIFICATIONS (continued)
Unless otherwise noted, the following specifications apply for V
CC
= +3.0V to +5.5V with T
AMB
= T
MIN
to T
MAX
.
Typical values apply at V
CC
= +3.3V or +5.0V and T
AMB
= 25
C.
Rev. 11/14/02
SP3223E +3.0V to +5.5V RS-232 Transceivers
Copyright 2002 Sipex Corporation
4
SPECIFICATIONS (continued)
Unless otherwise noted, the following specifications apply for V
CC
= +3.0V to +5.5V with T
AMB
= T
MIN
to T
MAX
.
Typical values apply at V
CC
= +3.3V or +5.0V and T
AMB
= 25
C.
Figure 1. Transmitter Output Voltage VS. Load
Capacitance for the SP3223E
Figure 2. Slew Rate VS. Load Capacitance for the
SP3223E
TYPICAL PERFORMANCE CHARACTERISTICS
Unless otherwise noted, the following performance characteristics apply for V
CC
= +3.3V, 120Kbps data rate, all drivers
loaded with 3K
, 0.1F charge pump capacitors, and T
AMB
= +25
C.
6
4
2
0
-2
-4
-6
T
ransmitter Output
V
olta
g
e
[V]
Load Capacitance [pF]
Vout+
Vout-
500
1000
1500
0
14
12
10
8
6
4
2
0
Sle
w Rate [V/
s]
Load Capacitance [pF]
+Slew
-Slew
0
500
1000
1500
2000
R
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5
s
n
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|
L
H
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-
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L
P
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|
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M
A
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2
=
o
C
w
e
k
S
r
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v
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c
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H
P
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-
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L
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t
a
R
w
e
l
S
n
o
i
g
e
R
-
n
o
i
t
i
s
n
a
r
T
0
3
/
V
s
V
C
C
R
,
V
3
.
3
=
L
K
3
=
T
,
B
M
A
5
2
=
o
,
C
r
o
V
0
.
3
+
o
t
V
0
.
3
-
m
o
r
f
n
e
k
a
t
s
t
n
e
m
e
r
u
s
a
e
m
V
0
.
3
-
o
t
V
0
.
3
+
5
Rev. 11/14/02
SP3223E +3.0V to +5.5V RS-232 Transceivers
Copyright 2002 Sipex Corporation
Figure 3. Supply Current VS. Load Capacitance when
Transmitting Data for the SP3223E
Figure 4. Transmitter Output Voltage VS. Load
Capacitance for the SP3243E
Figure 5. Slew Rate VS. Load Capacitance for the
SP3243E
Figure 6. Supply Current VS. Load Capacitance when
Transmitting Data for the SP3243E
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
Unless otherwise noted, the following performance characteristics apply for V
CC
= +3.3V, 120Kbps data rate, all drivers
loaded with 3K
, 0.1F charge pump capacitors, and T
AMB
= +25
C.
40
35
30
25
20
15
10
5
0
Suppl
y Current [mA]
Load Capacitance [pF]
118KHz
60KHz
10KHz
0
500
1000
1500
2000
6
4
2
0
-2
-4
-6
T
ransmitter Output
V
o
lta
g
e
[V]
Load Capacitance [pF]
Vout+
Vout-
500
1000
1500
2000
2500
0
16
14
12
10
8
6
4
2
0
Sle
w Rate [V/
s]
Load Capacitance [pF]
0
500
1000
1500
2000
2500
3000
+ Slew
- Slew
80
70
60
50
40
30
20
10
0
Suppl
y Current [mA]
Load Capacitance [pF]
0
500
1000
1500
2000
2500
118KHz
60KHz
10KHz
3000
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