®
SP3223E/EB/EU
Intelligent +3.0V to +5.5V RS-232 Transceivers
FEATURES
■
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 1µA shutdown
■
Minimum 250Kbps data rate under load
(EB)
■
1 Mbps data rate for high speed RS-232
(EU)
■
Regulated Charge Pump Yields Stable
RS-232 Outputs Regardless of V
CC
Variations
■
ESD Specifications:
+15KV Human Body Model
+15KV
IEC1000-4-2 Air Discharge
+8KV
IEC1000-4-2 Contact Discharge
EN
1
20 SHUTDOWN
19 V
CC
18 GND
17
SP3223
16
T
1
OUT
R
1
IN
C1+ 2
V+
C1-
C2+
C2-
V-
T
2
OUT
R
2
IN
3
4
5
6
7
8
9
15 R
1
OUT
14
ONLINE
13 T
1
IN
12 T
2
IN
11
STATUS
R
2
OUT 10
Now Available in Lead Free Packaging
DESCRIPTION
The
SP3223
products are RS-232 transceiver solutions intended for portable applications
such as notebook and hand held computers. The
SP3223
use an internal high-efficiency,
charge-pump power supply that requires only 0.1µF capacitors in 3.3V operation. This charge
pump and
Sipex's
driver architecture allow the
SP3223
series to deliver compliant RS-232
performance from a single power supply ranging from +3.3V to +5.0V. The
SP3223
is a 2-
driver/2-receiver device ideal for laptop/notebook computer and PDA applications.
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 1µA.
SELECTION TABLE
Device
Power
Supplies
+3.0V to +5.5V
+3.0V to +5.5V
+3.0V to +5.5V
+3.0V to +5.5V
+3.0V to +5.5V
+3.0V to +5.5V
RS-232
Drivers
2
2
2
2
2
2
RS-232
Receivers
2
2
2
2
2
2
External
Components
4 capacitors
4 capacitors
4 capacitors
4 capacitors
4 capacitors
4 capacitors
AUTO ON-LINE
®
Circuitry
YES
YES
YES
YES
YES
YES
TTL 3-
State
YES
YES
YES
YES
YES
YES
# of
Pins
20
20
20
20
20
20
Gauranteed
Data Rate
120
120
250
250
1000
1000
ESD
Rating
2kV
15kV
2kV
15kV
2kV
15kV
SP3223
SP3223E
SP3223B
SP3223EB
SP3223U
SP3223EU
Applicable U.S. Patents - 5,306,954; and other patents pending.
Date: 12/16/04
SP3223 +3.0V to +5.5V RS-232 Transceivers
© Copyright 2004 Sipex Corporation
1
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 (SP3223).................-0.3V to +6.0V
RxIN...................................................................+15V
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
Power Dissipation per package
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
NOTE 1:
V+ and V- can have maximum magnitudes of 7V, but their absolute difference cannot exceed 13V.
ELECTRICAL CHARACTERISTICS
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 (Note 2).
PARAMETER
DC CHARACTERISTICS
Supply Current,
AUTO ON-LINE
®
1.0
10
µA
All RxIN open, ONLINE = GND,
SHUTDOWN = V
CC
, TxIN=V
CC
or
GND,V
CC
= +3.3V, T
AMB
= +25° C
SHUTDOWN = GND, TxIN=V
CC
or
GND, V
CC
= +3.3V, T
AMB
= +25° C
ONLINE = SHUTDOWN = V
CC
,
no load, V
CC
= +3.3V, T
AMB
= +25° C
MIN.
TYP.
MAX.
UNITS
CONDITIONS
Supply Current, Shutdown
1.0
10
µA
mA
Supply Current,
AUTO ON-LINE
®
Disabled
LOGIC INPUTS AND RECEIVER OUTPUTS
Input Logic Threshold
LOW
HIGH
Input Leakage Current
GND
2.0
0.3
1.0
0.8
V
CC
±0.01
±1.0
V
µA
µA
V
CC
= +3.3V or +5.0V, TxIN,
EN (
SP3223
), ONLINE,
SHUTDOWN
TxIN, EN, ONLINE, SHUTDOWN,
T
AMB
= +25° C, V
IN
= OV to V
CC
Receivers disabled,
V
OUT
= OV to V
CC
I
OUT
= 1.6mA
I
OUT
= -1.0mA
Output Leakage Current
±0.05
±10
Output Voltage LOW
Output Voltage HIGH
V
CC
- 0.6
V
CC
- 0.1
0. 4
V
V
NOTE 2:
C1 - C4 0.1µF, tested at 3.3V
±10%.
C1 = 0.047µF, C2-C4 = 0.33µF, tested at 5V±10%.
Date: 12/16/04
SP3223 +3.0V to +5.5V RS-232 Transceivers
© Copyright 2004 Sipex Corporation
2
ELECTRICAL CHARACTERISTICS
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 (Note 2).
PARAMETER
DRIVER OUTPUTS
Output Voltage Swing
Output Resistance
Output Short-Circuit Current
Output Leakage Current
±5.0
30 0
±35
±70
±60
±100
±25
±5.4
V
Ω
mA
µA
All driver outputs loaded with 3K
Ω
to GND, T
AMB
= +25° C
V
CC
= V+ = V- = 0V, V
OUT
= ±2V
V
OUT
= 0V
V
OUT
= ±15V
V
CC
= 0V or 3.0V to 5.5V,
V
OUT
= ±12V, Drivers disabled
MIN.
TYP.
MAX.
UNITS
CONDITIONS
RECEIVER INPUTS
Input Voltage Range
Input Threshold LOW
Input Threshold LOW
Input Threshold HIGH
Input Threshold HIGH
Input Hysteresis
Input Resistance
3
-15
0. 6
0. 8
1.2
1.5
1. 5
1. 8
0.3
5
7
2.4
2.4
15
V
V
V
V
V
V
kΩ
V
CC
= 3.3V
V
CC
= 5.0V
V
CC
= 3.3V
V
CC
= 5.0V
AUTO ON-LINE
®
CIRCUITRY CHARACTERISTICS (ONLINE = GND, SHUTDOWN = V
CC
)
STATUS Output Voltage LOW
STATUS Output Voltage HIGH
Receiver Threshold to Drivers
Enabled (t
ONLINE
)
Receiver Positive or Negative
Threshold to STATUS HIGH
(t
STSH
)
Receiver Positive or Negative
Threshold to STATUS LOW
(t
STSL
)
V
CC
- 0.6
200
0.5
0.4
V
V
µS
µS
I
OUT
= 1.6mA
I
OUT
= -1.0mA
Figure 14
Figure 14
20
µS
Figure 14
NOTE 2:
C1 - C4 0.1µF, tested at 3.3V
±10%.
C1 = 0.047µF, C2-C4 = 0.33µF, tested at 5V±10%.
Date: 12/16/04
SP3223 +3.0V to +5.5V RS-232 Transceivers
© Copyright 2004 Sipex Corporation
3
TIMING CHARACTERISTICS
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.
PARAMETER
Maximum Data Rate
SP3223E
SP3223EB
SP3223EH
SP3223EU
Receiver Propagation Delay
t
PHL
t
PLH
Receiver Output Enable Time
Receiver Output Disable Time
Driver Skew
E,EB
E H, EU
Receiver Skew
Transition-Region Slew Rate
E,EB
EH
EU
60
90
30
V/
µs
V
CC
= 3.3V, R
L
= 3K
Ω
, T
AMB
= 25ºC,
measurements taken from -3.0V to +3.0V
or +3.0V to -3.0V
100
50
200
500
ns
100
1000
ns
| t
PHL
- t
PLH
|, T
AMB
= 25ºC
| t
PHL
- t
PLH
|
200
200
ns
ns
0.15
µs
Receiver input to Receiver output, C
L
=
150pF
120
250
kbps
460
1000
R
L
= 3K
Ω
, C
L
= 250pF, one driver active
235
R
L
= 3K
Ω
, C
L
= 1000pF, one driver active
MIN.
TYP.
MAX.
UNITS
CONDITIONS
Normal operation
Normal operation
Date: 12/16/04
SP3223 +3.0V to +5.5V RS-232 Transceivers
© Copyright 2004 Sipex Corporation
4
TYPICAL OPERATING CIRCUIT
+3V to +5V
C5
+
0.1µF
2 C1+
0.1µF
4 C1-
5 C2+
19
V
CC
V+
3
C3
+
0.1µF
C1
+
SP3223
C2
+
V-
7
C4
+
0.1µF
0.1µF
6 C2-
13 T
1
IN
T
1
OUT 17
T
2
OUT
8
TTL/CMOS
INPUTS
12 T
2
IN
RS-232
OUTPUTS
15 R
1
OUT
TTL/CMOS
OUTPUTS
10 R
2
OUT
5KΩ
1 EN
20
14
To µP Supervisor
Circuit
R
1
IN
5KΩ
R
2
IN
16
RS-232
INPUTS
9
V
CC
SHUTDOWN
ONLINE
STATUS
GND
18
11
Figure 4. SP3223 Typical Operating Circuit
Date: 12/16/04
SP3223 +3.0V to +5.5V RS-232 Transceivers
© Copyright 2004 Sipex Corporation
5
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