®
SP3223EB/3243EB
Intelligent +3.0V to +5.5V RS-232 Transceivers
■
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
■
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
EN
1
20 SHUTDOWN
19 V
CC
18 GND
17
SP3223EB 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 SP3223EB and SP3243EB products are RS-232 transceiver solutions intended for
portable or hand-held applications such as notebook and palmtop computers. The SP3223EB
and SP3243EB 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 SP3223EB/3243EB series to deliver compliant RS-232 performance from a single power
supply ranging from +3.0V to +5.5V. The SP3223EB is a 2-driver/2-receiver device, and the
SP3243EB is a 3-driver/5-receiver device ideal for laptop/notebook computer and PDA
applications. The SP3243EB 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 1µA.
SELECTION TABLE
Device
SP3223EB
SP3243EB
Power Supplies
+3.0V to +5.5V
+3.0V to +5.5V
RS-232
Drivers
2
3
RS-232
Receivers
2
5
External
Components
4 capacitors
4 capacitors
AUTO ON-LINE
®
Circuitry
YES
YES
TTL 3-State
YES
YES
No. of
Pins
20
28
Applicable U.S. Patents - 5,306,954; and other patents pending.
Date: 6/2/04
SP3223EB/3243EB +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 (SP3223E) ............ -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
Power Dissipation per package
28-pin PDIP
(derate 16.0mW/°C above+70°C) ...................... 1300mW
20-pin SSOP
(derate 9.25mW/°C above +70°C) ...................... 750mW
20-pin TSSOP
(derate 11.1mW/°C above +70°C) ....................... 900mW
28-pin SOIC
(derate 12.7mW/°C above +70°C) .................... 1000mW
28-pin SSOP
(derate 11.2mW/°C above +70°C) ...................... 900mW
28-pin TSSOP
(derate 11.1mW/°C above +70°C) ....................... 900mW
32-pin QFN
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
,
C1 - 4 = 0.1µF. Typical values apply at V
CC
= +3.3V or +5.0V and T
AMB
= 25°C.
PARAMETER
DC CHARACTERISTICS
Supply Current,
AUTO ON-LINE
®
Supply Current, Shutdown
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,
V
CC
= +3.3V, T
AMB
= +25°C,
TxIN = V
CC
or GND
ONLINE = SHUTDOWN = V
CC
,
TxIN = V
CC
or GND,
no load, V
CC
= +3.3V, T
AMB
= +25°C
V
CC
= +3.3V or +5.0V, TxIN,
EN (SP3223EB), ONLINE,
SHUTDOWN
TxIN, EN (SP3223EB), ONLINE,
T
AMB
= +25°C, V
IN
= 0V to V
CC
Output Leakage Current
Output Voltage LOW
Output Voltage HIGH
DRIVER OUTPUTS
Output Voltage Swing
Output Resistance
Output Short-Circuit Current
Output Leakage Current
±5.0
300
±35
±60
±25
±5.4
V
Ω
mA
µA
All driver outputs loaded with 3KΩ
to GND, T
AMB
= +25°C
V
CC
= V+ = V- = 0V, V
OUT
=
±2V
V
OUT
= 0V
V
CC
= 0V or 3.0V to 5.5V,
V
OUT
=
±12V,
Drivers disabled
© Copyright 2004 Sipex Corporation
MIN.
TYP.
MAX. UNITS CONDITIONS
1.0
10
µA
Supply Current,
AUTO ON-LINE
®
Disabled
LOGIC INPUTS AND RECEIVER OUTPUTS
Input Logic Threshold
LOW
HIGH
Input Leakage Current
SHUTDOWN,
GND
2.4
0.3
1.0
mA
0.8
VCC
±0.01
±1.0
V
V
µA
±0.05
±10
0.4
µA
V
V
Receivers disabled, V
OUT
= 0V to
V
CC
I
OUT
= 1.6mA
I
OUT
= -1.0mA
V
CC
- 0.6
V
CC
- 0.1
Date: 6/2/04
SP3223EB/3243EB +3.0V to +5.5V RS-232 Transceivers
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
,
C1 - 4 = 0.1µF. Typical values apply at V
CC
= +3.3V or +5.0V and T
AMB
= 25°C.
PARAMETER
RECEIVER INPUTS
Input Voltage Range
Input Threshold LOW
Input Threshold LOW
Input Threshold HIGH
Input Threshold HIGH
Input Hysteresis
Input Resistance
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
)
TIMING CHARACTERISTICS
Maximum Data Rate
Receiver Propagation Delay
t
PHL
t
PLH
Receiver Output Enable Time
Receiver Output Disable Time
Driver Skew
Receiver Skew
Transition-Region Slew Rate
250
kbps
R
L
= 3KΩ, C
L
= 1000pF,
one driver active
Receiver input to Receiver output,
C
L
= 150pF
Normal operation
Normal operation
| t
PHL
- t
PLH
|, T
AMB
= 25°C
| t
PHL
- t
PLH
|
V
CC
= 3.3V, R
L
= 3KΩ, T
AMB
= 25°C,
measurements taken from -3.0V to
+3.0V or +3.0V to -3.0V
V
CC
- 0.6
200
0.5
3
-25
0.6
0.8
1.2
1.5
1.5
1.8
0.3
5
7
0.4
2.4
2.4
25
V
V
V
V
V
V
kΩ
V
V
µs
µs
I
OUT
= 1.6mA
I
OUT
= -1.0mA
Figure 20
Figure 20
V
CC
= 3.3V
V
CC
= 5.0V
V
CC
= 3.3V
V
CC
= 5.0V
MIN.
TYP.
MAX. UNITS CONDITIONS
AUTO ON-LINE
®
CIRCUITRY CHARACTERISTICS (ONLINE = GND, SHUTDOWN = V
CC
)
20
µs
Figure 20
0.15
0.15
200
200
100
50
30
µs
ns
ns
ns
ns
V/µs
Date: 6/2/04
SP3223EB/3243EB +3.0V to +5.5V RS-232 Transceivers
© Copyright 2004 Sipex Corporation
3
TYPICAL PERFORMANCE CHARACTERISTICS
Unless otherwise noted, the following performance characteristics apply for V
CC
= +3.3V, 250kbps data rate, all drivers
loaded with 3KΩ, 0.1µF charge pump capacitors, and T
AMB
= +25°C.
6
Transmitter Output
Voltage (V
DC
)
30
TxOUT +
4
2
0
-2
-4
-6
0
25
Slew rate (V/µs)
- Slew
+ Slew
20
15
10
5
0
1 Transmitter at 250Kbps
1 Transmitter at 15.6Kbps
All drivers loaded 3K + Load Cap
TxOUT -
1000
2000
3000
4000
5000
0
500
1000
2000
3000
4000
5000
Load Capacitance (pF)
Load Capacitance (pF)
Figure 1. Transmitter Output Voltage VS. Load
Capacitance for the SP3223EB
Figure 2. Slew Rate VS. Load Capacitance for the
SP3223EB
35
20
Supply Current (mA)
30
25
250Kbps
125Kbps
15
I
CC
(mA)
20
15
10
5
0
0
1000
2000
10
1 Transmitter at 250Kbps
2 Transmitters at 15.6Kbps
All drivers loaded with 3K // 1000pF
20Kbps
1 Transmitter at 250Kbps
1 Transmitter at 15.6Kbps
All drivers loaded 3K + Load Cap
5
3000
4000
5000
0
2.7
3
3.5
4
4.5
5
Load Capacitance (pF)
Supply Voltage (V
DC
)
Figure 3. Supply Current VS. Load Capacitance when
Transmitting Data for the SP3223EB
Figure 4. Supply Current VS. Supply Voltage for
the SP3243EB
6
TxOUT +
6
4
Transmitter Output
Voltage (V)
TxOUT +
Transmitter Output
Voltage (V
DC
)
4
2
0
-2
-4
-6
2.7
3
3.5
TxOUT -
2
0
-2
-4
-6
0
TxOUT -
4
4.5
5
1000
2000
3000
4000
5000
Supply Voltage (V
DC
)
Load Capacitance (pF)
Figure 5. Transmitter Output Voltage VS. Supply
Voltage for the SP3243EB
Figure 6. Transmitter Output Voltage VS. Load
Capacitance for the SP3243EB
Date: 6/2/04
SP3223EB/3243EB +3.0V to +5.5V RS-232 Transceivers
© Copyright 2004 Sipex Corporation
4
TYPICAL PERFORMANCE CHARACTERISTICS
Unless otherwise noted, the following performance characteristics apply for V
CC
= +3.3V, 250kbps data rate, all drivers
loaded with 3KΩ, 0.1µF charge pump capacitors, and T
AMB
= +25°C.
25
20
15
10
5
0
1 Transmitter at 250Kbps
2 Transmitter at 15.6Kbps
All drivers loaded 3K + Load Cap
- Slew
+ Slew
40
Supply Current (mA)
35
30
25
20
15
10
5
0
0
1 Transmitter at full Data Rate
2 Transmitters at 15.5 Kbps
All Transmitters loades 3K + Load Cap
250Kbps
120Kbps
20Kbps
Slew rate (V/µs)
0
500
1000
2000
3000
4000
5000
1000
2000
3000
4000
5000
Load Capacitance (pF)
Load Capacitance (pF)
Figure 7. Slew Rate VS. Load Capacitance for the
SP3243EB
Figure 8. Supply Current VS. Load Capacitance when
Transmitting Data for the SP3243EB
25
Supply Current (mA)
6
TxOUT +
Transmitter Output
Voltage (V)
20
15
10
5
0
2.7
3
3.5
4
4.5
5
Supply Voltage (V
DC
)
1 Transmitter at 250Kbps
2 Transmitters at 15.6Kbps
All drivers loaded with 3K // 1000pF
4
2
0
-2
-4
-6
2.7
3
3.5
TxOUT -
4
4.5
5
Supply Voltage (V
DC
)
Figure 9. Supply Current VS. Supply Voltage for the
SP3243EB
Figure 10. Transmitter Output Voltage VS. Supply
Voltage for the SP3243EB
Date: 6/2/04
SP3223EB/3243EB +3.0V to +5.5V RS-232 Transceivers
© Copyright 2004 Sipex Corporation
5
Automotive Electronics
京公网安备 11010802033920号
EEWORLD
