Date: 06/28/04
SP3223EU/3243EU +3.0V to +5.5V RS-232 Transceivers
Copyright 2004 Sipex Corporation
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SP3223EU/3243EU
High Speed Intelligent +3.0V to +5.5V
RS-232 Transceivers
The SP3223EU and 3243EU products are RS-232 transceiver solutions intended for portable or hand-
held applications such as notebook and palmtop computers. The "U" series is based on Sipex's
SP3223E/3243E series and has been enhanced for high speed. The data rate is improved to 1000kbps,
easily meeting the demands of high speed RS-232 applications. The SP3223EU and 3243EU 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 SP3223EU/3243EU series to
deliver compliant RS-232 performance from a single power supply ranging from +3.0V to +5.5V. The
SP3223EU is a 2-driver/2-receiver device, and the SP3243EU is a 3-driver/5-receiver device, ideal for
laptop/notebook computer and PDA applications. The SP3243EU 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
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
1000 Kbps minimum transmission rate
Ideal for High Speed RS-232 Applications
DESCRIPTION
SELECTION TABLE
Applicable U.S. Patents - 5,306,954; and other patents pending.
V-
1
2
3
4
17
18
19
20
5
6
7
16
15
14
SHUTDOWN
C1+
V+
C1-
C2+
C2-
ONLINE
EN
R
1
IN
GND
V
CC
T
1
OUT
STATUS
8
9
10
11
12
13
R
2
IN
R
2
OUT
SP3223EU
T
2
OUT
T
1
IN
T
2
IN
R
1
OUT
Now Available in Lead Free Packaging
Date: 06/28/04
SP3223EU/3243EU +3.0V to +5.5V RS-232 Transceivers
Copyright 2004 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 (SP3223EU)...........-0.3V to +6.0V
RxIN...................................................................+25V
Output Voltages
TxOUT.............................................................+13.2V
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
,
C1 - C4 = 0.1
F. Typical values apply at V
CC
= +3.3V or +5.0V and T
AMB
= 25
C.
Power Dissipation per package
20-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
28-pin TSSOP (derate 13.2mW/
o
C above +70
o
C)......1059mW
32-pin MLPQ (derate 29.4mW/
o
C above +70
o
C)........2352mW
PARAMETER
MIN.
TYP.
MAX. UNITS CONDITIONS
DC CHARACTERISTICS
Supply Current,AUTO ON-LINE
1.0
10
A
All RxIN open, ONLINE = GND,
SHUTDOWN = V
CC
, V
CC
= +3.3V,
T
AMB
= +25
C, TxIN = GND or V
CC
Supply Current, Shutdown
1.0
10
A
SHUTDOWN = GND, V
CC
= +3.3V,
T
AMB
= +25
C, TxIN = V
CC
or GND
Supply Current,
0.3
1.0
mA
ONLINE = SHUTDOWN = V
CC
, no load,
AUTO ON-LINE
Disabled
V
CC
= +3.3V, T
AMB
= +25
C, TxIN = GND or V
CC
LOGIC INPUTS AND RECEIVER OUTPUTS
Input Logic Threshold
V
CC
= +3.3V or +5.0V, TxIN, EN(SP3223EU),
LOW
0.8
V
ONLINE, SHUTDOWN
HIGH
2.4
V
Input Leakage Current
0.01
1.0
A
TxIN, EN, ONLINE, SHUTDOWN,
T
AMB
= +25
C, V
IN
= 0V to V
CC
Output Leakage Current
0.05
10
A
Receivers disabled, V
OUT
= 0V to V
CC
Output Voltage LOW
0.4
V
I
OUT
= 1.6mA
Output Voltage HIGH
V
CC
- 0.6 V
CC
- 0.1
V
I
OUT
= -1.0mA
DRIVER OUTPUTS
Output Voltage Swing
5.0
5.4
V
All driver outputs loaded with 3K
to GND,
T
AMB
= +25
C
Output Resistance
300
V
CC
= V+ = V- = 0V, V
OUT
=
2V
Output Short-Circuit Current
35
60
mA
V
OUT
= 0V
Output Leakage Current
25
A
V
CC
= 0V or 3.0V to 5.5V, V
OUT
=
12V,
Drivers disabled
ELECTRICAL CHARACTERISTICS
Date: 06/28/04
SP3223EU/3243EU +3.0V to +5.5V RS-232 Transceivers
Copyright 2004 Sipex Corporation
3
Unless otherwise noted, the following specifications apply for V
CC
= +3.0V to +5.5V with T
AMB
= T
MIN
to T
MAX
,
C1 - C4 = 0.1
F. Typical values apply at V
CC
= +3.3V or +5.0V and T
AMB
= 25
C.
PARAMETER
MIN.
TYP.
MAX. UNITS CONDITIONS
RECEIVER INPUTS
Input Voltage Range
-25
25
V
Input Threshold LOW
0.6
1.2
V
V
CC
= 3.3V
Input Threshold LOW
0.8
1.5
V
V
CC
= 5.0V
Input Threshold HIGH
1.5
2.4
V
V
CC
= 3.3V
Input Threshold HIGH
1.8
2.4
V
V
CC
= 5.0V
Input Hysteresis
0.3
V
Input Resistance
3
5
7
k
AUTO ON-LINE
CIRCUITRY CHARACTERISTICS (ONLINE = GND, SHUTDOWN = V
CC
)
STATUS Output Voltage LOW
0.4
V
I
OUT
= 1.6mA
STATUS Output Voltage HIGH
V
CC
- 0.6
V
I
OUT
= -1.0mA
Receiver Threshold to Drivers
200
S
Figure 19
Enabled (t
ONLINE
)
Receiver Positive or Negative
0.5
S
Figure 19
Threshold to STATUS HIGH
(t
STSH
)
Receiver Positive or Negative
20
S
Figure 19
Threshold to STATUS LOW
(t
STSL
)
TIMING CHARACTERISTICS
Maximum Data Rate
1000
Kbps
R
L
= 3K
, C
L
= 250pF, one driver active
Receiver Propagation Delay
t
PHL
0.15
s
Receiver input to Receiver output, C
L
= 150pF
t
PLH
0.15
Receiver Output Enable Time
200
ns
Normal operation
Receiver Output Disable Time
200
ns
Normal operation
Driver Skew
100
ns
| t
PHL
- t
PLH
|
Receiver Skew
50
ns
| t
PHL
- t
PLH
|
Transition-Region Slew Rate
90
V/
s
V
CC
= 3.3V, R
L
= 3K
, T
AMB
= 25
C,
measurements taken from -3.0V to +3.0V or
+3.0V to -3.0V
ELECTRICAL CHARACTERISTICS
Date: 06/28/04
SP3223EU/3243EU +3.0V to +5.5V RS-232 Transceivers
Copyright 2004 Sipex Corporation
4
Unless otherwise noted, the following performance characteristics apply for V
CC
= +3.3V, 1000kbps data rate, all drivers
loaded with 3k
, 0.1F charge pump capacitors, and T
AMB
= +25
C.
Figure 2. Transmitter Output Voltage VS. Supply
Voltage for the SP3223EU
2.7
3
3.5
4
4.5
5
Supply Voltage (V)
T
ransmitter Output
V
oltage (V)
6
4
2
0
-2
-4
-6
1Driver at 1Mbps
Other Drivers at 62.5Kbps
All Drivers Loaded with 3K // 250pF
Figure 6. Transmitter Output Voltage VS. Supply
Voltage for the SP3223EU
0
250
500
1000
1500
Load Capacitance (pF)
Supply Current (mA)
35
30
25
20
15
10
5
0
T1 at 1Mbps
T2 at 62.5Kbps
2.7
3
3.5
4
4.5
5
Supply Voltage (V)
T
ransmitter Output
V
oltage (V)
6
4
2
0
-2
-4
-6
T1 at 1Mbps
T2 at 62.5Kbps
All Drivers loaded
with 3K//250pF
Figure 1. Transmitter Skew VS. Load Capacitance for
the 3223EU / 3243EU
0
250
500
1000
1500
2000
200
150
100
50
0
Load Capacitance (pF)
Skew (ns)
T1 at 500Kbps
T2 at 31.2Kbps
All TX loaded 3K // CLoad
Figure 3. Transmitter Output Voltage VS. Load
Capacitance for the SP3223EU
Figure 5. Supply Current VS. Supply Voltage for the
SP3223EU
0
250
500
1000
1500
Load Capacitance (pF)
T
ransmitter
Output V
oltage (V)
6
4
2
0
-2
-4
-6
T1 at 1Mbps
T2 at 62.5Kbps
2.7
3
3.5
4
4.5
5
Supply Voltage (V)
SupplyCurrent (mA)
20
15
10
5
0
T1 at 1Mbps
T2 at 62.5Kbps
All Drivers loaded
with 3K//250pF
Figure 4. Supply Current VS. Load Capacitance for the
SP3223EU
TYPICAL PERFORMANCE CHARACTERISTICS
Date: 06/28/04
SP3223EU/3243EU +3.0V to +5.5V RS-232 Transceivers
Copyright 2004 Sipex Corporation
5
Unless otherwise noted, the following performance characteristics apply for V
CC
= +3.3V, 1000kbps data rate, all drivers
loaded with 3k
, 0.1F charge pump capacitors, and T
AMB
= +25
C.
Figure 8. Slew Rate VS. Load Capacitance for the
SP3243EU
Figure 10. Supply Current VS. Supply Voltage for the
SP3243EU
Figure 7. Transmitter Output Voltage VS. Load
Capacitance for the SP3243EU
Figure 9. Supply Current VS. Load Capacitance for the
SP3243EU
0
250
500
1000
1500
2000
Load Capacitance (pF)
T
ransmitter
Output V
oltage (V)
6
4
2
0
-2
-4
-6
1 TX at full data rate
2 TX's at1/16 data rate
2Mbps
1.5Mbps
1Mbps
2Mbps
1.5Mbps
1Mbps
0
250
500
1000
1500
2000
Load Capacitance (pF)
Slew Rate (V /
s)
120
100
80
60
40
20
0
Slew +
Slew -
1 TX at 1Mbps
2 TX's at 62.5Kbps
All TX loaded 3K // CLoad
0
250
500
1000
1500
Load Capacitance (pF)
SupplyCurrent (mA)
50
40
30
20
10
0
1 TX at full data rate
2 TX's at 1/16 data rate
All TX loaded 3K // CLoad
2 Mbps
1.5 Mbps
1 Mbps
2.7
3
3.5
4
4.5
5
Supply Voltage (V)
Supply Current (mA)
30
25
20
15
10
5
0
1 Driver at 1Mbps
Other Drivers at 62.5Kbps
All Drivers Loaded with 3K // 250pF
TYPICAL PERFORMANCE CHARACTERISTICS
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