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 µA shutdown
• Minimum 250Kbps data rate under load
(EB)
• Mbps data rate for high speed RS-232
(EU)
• Regulated Charge Pump Yields Stable
RS-232 Outputs Regardless of V
CC
Variations
• ESD Specifications:
+5KV Human Body Model
+5KV IEC6000-4-2 Air Discharge
+8KV IEC6000-4-2 Contact Discharge
EN
V+
C1-
C2+
C2-
V-
T
2
OUT
R
2
IN
1
3
4
5
6
7
8
9
SP3223E
20 SHUTDOWN
19 Vcc
18 GND
17
16
T
1
OUT
R
1
IN
C1+ 2
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. These products use an internal high-efficiency,
charge-pump power supply that requires only 0.µF capacitors in 3.3V operation. This charge
pump and
Exar'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 shut-
down 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 µA.
SELECTION TABLE
Data Rate
(kbps)
20
250
000
Device
SP3223E
SP3223EB
SP3223EU
Power
Supplies
+3.0V to +5.5V
+3.0V to +5.5V
+3.0V to +5.5V
RS- 232
Drivers
2
2
2
RS-232
Receivers
2
2
2
AUTO ON-LINE ®
YES
YES
YES
TTL
3-state
YES
YES
YES
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50)668-707 • www.exar.com
SP3223E/EB/EU_0_06272
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 ).......................................-0.3V to +7.0V
V- (NOTE )........................................+0.3V to -7.0V
V+ + |V-| (NOTE )...........................................+3V
I
CC
(DC V
CC
or GND current).........................+00mA
Input Voltages
TxIN, ONLINE,
SHUTDOWN, EN......................-0.3V to V
CC
+ 0.3V
RxIN...................................................................+5V
Output Voltages
TxOUT.............................................................+3.2V
RxOUT, STATUS.......................-0.3V to (V
CC
+ 0.3V)
Short-Circuit Duration
TxOUT.....................................................Continuous
Storage Temperature......................-65°C to +50°C
Power Dissipation per package
20-pin SSOP (derate 9.25mW/
o
C above +70
o
C)..750mW
20-pin TSSOP (derate .mW/
o
C above +70
o
C..900mW
NOTE 1:
V+ and V- can have maximum magnitudes of 7V, but their absolute difference cannot exceed 3V.
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®
Supply Current, Shutdown
Supply Current,
AUTO ON-LINE® Disabled
LOGIC INPUTS AND RECEIVER OUTPUTS
Input Logic Threshold
LOW
HIGH
Input Leakage Current
Output Leakage Current
Output Voltage LOW
Output Voltage HIGH
Vcc - 0.6
Vcc - 0.
GND
2.0
+/-0.0
+/-0.05
0.8
Vcc
+/-.0
+/-0
0.4
V
µA
µA
V
V
Vcc = 3.3V or 5.0V,
TxIN, EN, SHUTDOWN, ONLINE
TxIN, EN, ONLINE, SHUTDOWN,
T
AMB
= +25ºC, Vin = 0V to Vcc
Receivers disabled, Vout = 0V to
Vcc
I
OUT
= .6mA
I
OUT
= -.0mA
.0
0
µA
MIN.
TYP.
MAX.
UNITS
CONDITIONS
All RxIN open, ONLINE = GND,
SHUTDOWN = Vcc, TxIN = Vcc or
GND, Vcc = +3.3V, T
AMB
= +25ºC
SHUTDOWN = GND, TxIN =
Vcc or GND, Vcc = +3.3V, T
AMB
=
+25ºC
ONLINE = SHUTDOWN = Vcc, No
Load, Vcc = +3.3V, T
AMB
= +25ºC
ELECTRICAL CHARACTERISTICS
.0
0.3
0
.0
µA
mA
NOTE 2:
C1 - C4 = 0.1µF, tested at 3.3V ±10%.
C1 = 0.047µF, C2-C4 = 0.33µF, tested at 5V±10%.
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50)668-707 • www.exar.com
SP3223E/EB/EU_0_06272
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
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
)
Vcc - 0.6
200
0.5
3
MIN.
+/-5.0
300
+/-35
+/-60
+/-25
TYP.
+/-5.4
MAX.
UNITS
V
Ω
mA
µA
CONDITIONS
All Driver outputs loaded with 3kΩ
to GND, T
AMB
= +25ºC
Vcc = V+ = V- = 0V, Vout = +/-2V
Vout = 0V
Vcc = 0V or 3.0V to 5.5V, Vout =
+/-2V, Driver disabled
-5
0.6
0.8
.2
.5
.5
.8
0.3
5
+5
V
V
V
Vcc = 3.3V
Vcc = 5.0V
Vcc = 3.3V
Vcc = 5.0V
2.4
2.4
7
0.4
V
V
V
kΩ
V
V
µs
µs
AUTO ON-LINE® CIRCUITRY CHARACTERISTICS (ONLINE = GND, SHUTDOWN = Vcc)
I
OUT
= .6mA
I
OUT
= -.0mA
Figure 5
Figure 5
20
µs
Figure 5
NOTE 2:
C1 - C4 = 0.1µF, tested at 3.3V ±10%.
C1 = 0.047µF, C2-C4 = 0.33µF, tested at 5V±10%.
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50)668-707 • www.exar.com
SP3223E/EB/EU_0_06272
3
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
SP3223EU
Receiver Propagation Delay
t
PHL
and t
PLH
Receiver Output Enable Time
Receiver Output Disable Time
Driver Skew
E, EB
EU
Receiver Skew
E, EB, EU
Transition-Region Slew Rate
E, EB
EU
90
30
V/µs
200
000
ns
│t
PHL
- t
PLH
│
00
50
500
00
ns
ns
│t
PHL
- t
PLH
│, T
AMB
= 25°C
0.5
200
200
µA
ns
ns
20
250
000
235
kbps
RL = 3kΩ, C
L
= 000pF, One
Driver active
MIN.
TYP.
MAX.
UNITS
CONDITIONS
TIMING CHARACTERISTICS
RL = 3kΩ, C
L
= 250pF, One Driver
active
Receiver input to Receiver output,
C
L
= 50pF
Normal Operation
Normal Operation
Vcc = 3.3V,
RL = 3kΩ, T
AMB
=
25°C, measurements taken from
-3.0V to +3.0V or +3.0V to -3.0V
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50)668-707 • www.exar.com
SP3223E/EB/EU_0_06272
4
TYPICAL OPERATING CIRCUIT
Figure . SP3223E Typical Operating Circuit
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50)668-707 • www.exar.com
SP3223E/EB/EU_0_06272
5
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