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®
SP385E
Enhanced +3V or +5V RS-232 Line Driver/Receiver
FEATURES
■
Operates from 3.3V or 5V Power Supply
■
Meets All EIA-232D and V.28 Specifica-
tions at 5V
■
Meets EIA-562 Specifications at 3.3V
■
Two Drivers and Receivers
■
Operates with 0.1µF to 10µF Capacitors
■
High Data Rate — 120kbps Under Load
■
Low Power Shutdown
≤1µA
■
3-State TTL/CMOS Receiver Outputs
■
Low Power CMOS — 5mA Operation
■
Improved ESD Specifications:
+15kV Human Body Model
+15kV IEC1000-4-2 Air Discharge
+8kV IEC1000-4-2 Contact Discharge
N/C
C
1
+
V+
C
1
-
C
2
+
C
2
-
V-
T
2
OUT
R
2
IN
1
2
3
4
18
17
16
15
ON/OFF
V
CC
GND
T
1
OUT
R
1
IN
R
1
OUT
T
1
IN
T
2
IN
R
2
OUT
SP385E
5
6
7
8
9
14
13
12
11
10
Now Available in Lead Free Packaging
DESCRIPTION
Sipex's SP385E is an enhanced version of the SP200 family of RS232 line drivers/receivers.
The SP385E offers +3.3V operation for EIS-562 and EIA-232 applications. The SP385E
features offered maintains the same performance features offered in its predecessors. The
SP385E
is available in plastic SOIC or SSOP packages operating over the commercial and
industrial temperature ranges. The
SP385E
is pin compatible to the LTC1385 EIA-562
transceiver with the exception that the drivers are disabled with the ON/OFF pin.
TYPICAL APPLICATION CIRCUIT
RS232 OUTPUTS
RS232 INPUTS
CHARGE
PUMP
T
1
T
2
R
1
R
2
TTL/CMOS INPUTS
TTL/CMOS OUTPUTS
Date: 03/08/05
SP385E Enhanced +3V to +5V RS-232 Line Driver/Receiver
© Copyright 2005 Sipex Corporation
1
ABSOLUTE MAXIMUM RATINGS
This is a stress rating only and functional operation of the device at these
or any other conditions above those indicated in the operation sections of
this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods of time may affect reliability.
V
cc ..........................................................................................................................................................................
+6V
V
+ .............................................................................................................................
(Vcc-0.3V) to +13.2V
V
- .......................................................................................................................................................................
13.2V
Input Voltages
T
IN ..................................................................................................................................
-0.3 to (Vcc +0.3V)
R
IN .....................................................................................................................................................................
±15V
Output Voltages
T
OUT .............................................................................................................
(V+, +0.3V) to (V-, -0.3V)
R
OUT .........................................................................................................................
-0.3V to (Vcc +0.3V)
Short Circuit Duration
T
OUT ..................................................................................................................................................
Continuous
Power Dissipation
CERDIP ................................................................................... 675mW
(derate 9.5mW/°C above +70°C)
Plastic DIP ............................................................................... 375mW
(derate 7mW/°C above +70°C)
Small Outline ............................................................................ 375mW
(derate 7mW/°C above +70°C)
ELECTRICAL CHARACTERISTICS
V
CC
= +3.3V
±10%;
cap on (V
+
) and (V
-
) = 1.0µF, C1 = C2 = 0.1µF; T
MIN
to T
MAX
unless otherwise noted.
PARAMETERS
TTL INPUT
Logic Threshold
Low
High
Logic Pullup Current
Maximum Data Rate
TTL OUTPUT
TTL/CMOS Output
Voltage, Low
Voltage, High
Leakage Current; T
A
= +25°C
V
CC
EIA-562 OUTPUT
Output Voltage Swing
MIN.
TYP.
MAX.
UNITS
CONDITIONS
0.8
2.0
15
120
200
Volts
Volts
µA
kbps
T
IN
; ON/OFF Vcc = 3.3V
T
IN
; ON/OFF Vcc = 3.3V
T
IN
= 0V
C
L
= 2500pF, R
L
= 3kΩ
0.5
2.4
0.05
±10
Volts
Volts
µA
I
OUT
= 3.2mA; Vcc = 3.3V
I
OUT
= -1.0mA
ON/OFF=0V, 0V
≤
V
OUT
≤
±3.7
±4.2
±10
+15
1.2
1.7
0.5
5
4.0
1.5
30
10
300
1000
3
6
8
5
2.4
1.0
7
Volts
Ω
mA
Volts
Volts
Volts
Volts
kΩ
µs
µs
V/µs
V/µs
ns
ns
mA
Power-Off Output Resistance 300
Output Short Circuit Current
EIA-562 INPUT
Voltage Range
-15
Voltage Threshold
Low
0.8
High
Hysteresis
0.2
Resistance
3
DYNAMIC CHARACTERISTICS
Driver Propagation Delay
Receiver Propagation Delay
Instantaneous Slew Rate
Transition Region Slew Rate
Output Enable Time
Output Disable Time
POWER REQUIREMENTS
V
CC
Power Supply Current
3.3V
3kΩ
Shutdown Supply Current
All transmitter outputs loaded
with 3kΩ to ground
V
CC
= 0V; V
OUT
=
±2V
Infinite duration
V
CC
= 3.3V, T
A
= +25°C
V
CC
= 3.3V, T
A
= +25°C
V
CC
= 3.3V, T
A
= +25°C
V
IN
= 15V to –15V
TTL to RS-562
RS-562 to TTL
C
L
= 10pF, R
L
= 3kΩ - 7kΩ;
T
A
= +25°C
C
L
= 2500pF, R
L
= 3kΩ;
measured from +2V to -2V
or -2V to +2V
No load, T
A
= +25°C; V
CC
=
mA
All transmitters R
L
=
T
A
= +25°C
V
CC
= 3.3V, T
A
= +25°C
0.010
µA
Date: 03/08/05
SP385E Enhanced +3V to +5V RS-232 Line Driver/Receiver
© Copyright 2005 Sipex Corporation
2
ELECTRICAL CHARACTERISTICS
V
CC
= +3.3V
±10%;
cap on
PARAMETERS
TTL INPUT
Logic Threshold
Low
High
Logic Pullup Current
Maximum Data Rate
TTL OUTPUT
TTL/CMOS Output
Voltage, Low
Voltage, High
Leakage Current; T
A
= +25°C
EIA-232 OUTPUT
Output Voltage Swing
(V
+
)
and
(V
-
)
= 1.0µF, C1 = C2 = 0.1µF; T
MIN
to T
MAX
unless otherwise noted.
TYP.
MAX.
UNITS
CONDITIONS
MIN.
0.8
2.0
15
120
200
Volts
Volts
µA
kbps
T
IN
; ON/OFF
T
IN
; ON/OFF
T
IN
= 0V
C
L
= 2500pF, R
L
= 3kΩ
0.4
3.5
0.05
±5
±9
±18
+15
1.2
1.7
0.5
5
1.5
30
10
400
250
10
25
1
15
10
2.4
1.0
7
±10
Volts
Volts
µA
Volts
Ω
mA
Volts
Volts
Volts
Volts
kΩ
µs
V/µs
V/µs
ns
ns
mA
mA
µA
I
OUT
= 3.2mA; Vcc = +5V
I
OUT
= -1.0mA
EN = V
CC
, 0V
≤
V
OUT
≤
V
CC
All transmitter outputs loaded
with 3kΩ to ground
V
CC
= 0V; V
OUT
=
±2V
Infinite duration
Power-Off Output Resistance 300
Output Short Circuit Current
EIA-232 INPUT
Voltage Range
-15
Voltage Threshold
Low
0.8
High
Hysteresis
0.2
Resistance
3
DYNAMIC CHARACTERISTICS
Propagation Delay, RS-232 to TTL
Instantaneous Slew Rate
Transition Region Slew Rate
Output Enable Time
Output Disable Time
POWER REQUIREMENTS
V
CC
Power Supply Current
Shutdown Supply Current
V
CC
= 5V, T
A
= +25°C
V
CC
= 5V, T
A
= +25°C
V
CC
= 5V, T
A
= +25°C
V
IN
= 15V to –15V
C
L
= 10pF, R
L
= 3kΩ - 7kΩ;
T
A
=+25°C
C
L
= 2500pF, R
L
= 3kΩ;
measured from +3V to -3V
or -3V to +3V
No load, T
A
= +25°C; V
CC
= 5V
All transmitters R
L
= 3kΩ;
T
A
= +25°C
V
CC
= 5V, T
A
= +25°C
TYPICAL PERFORMANCE CHARACTERISTICS
-11
-10
-9
V– Voltage (Volts)
V+ (Volts)
12
10
V
CC
= 6V
8
6
V
CC
= 5V
30
25
20
I
CC
(mA)
8.4
8.2
8.0
V
OH
(Volts)
V
CC
= 6V
-8
-7
-6
-5
-4
-3
V
CC
= 6V
V
CC
= 5V
7.8
7.6
7.4
7.2
7.0
Load current = 0mA
T
A
= 25°C
V
CC
= 4V
15
V
CC
= 5V
10
V
CC
= 4V
5
V
CC
= 3V
0
-55
V
CC
= 4V
4
2
0
0
2
4
6
8
10
12
14
0
5
10
15
20
25
30
35
40
-40
0
25
70
85
125
6.8
4.5
4.75
5.0
V
CC
(Volts)
5.25
5.5
Load Current (mA)
Load Current (mA)
Temperature (°C)
Date: 03/08/05
SP385E Enhanced +3V to +5V RS-232 Line Driver/Receiver
© Copyright 2005 Sipex Corporation
3
PINOUT
N/C
C
1
+
V+
C
1
-
C
2
+
C
2
-
V-
T
2
OUT
R
2
IN
1
2
3
4
18
17
16
15
ON/OFF
V
CC
GND
T
1
OUT
R
1
IN
R
1
OUT
T
1
IN
T
2
IN
R
2
OUT
N/C
C
1
+
V+
C
1
-
C
2
+
C
2
-
V-
T
2
OUT
R
2
IN
1
2
3
4
20
19
18
17
ON/OFF
V
CC
GND
T
1
OUT
R
1
IN
R
1
OUT
T
1
IN
T
2
IN
R
2
OUT
N/C
SP385E
SP385E
5
6
7
8
9
14
13
12
11
10
5
6
7
8
9
16
15
14
13
12
11
N/C
10
18-pin WSOIC
TYPICAL OPERATING CIRCUIT
20-pin SSOP
+5V INPUT
10µF
+5V INPUT
10µF
+
17
+
19
2
1.0µF
+
6.3V
4
5
C +
1
V
CC
C
1
-
C +
2
+5V to +10V
Voltage Doubler
+10V to -10V
Voltage Inverter
V+
3
+
0.1µF
16V
1.0µF
+
6.3V
2
C +
1
V
CC
4
5
6
C
1
-
C +
2
+5V to +10V
Voltage Doubler
+10V to -10V
Voltage Inverter
V+
3
+
0.1µF
16V
1.0µF
+
16V
6
V-
7
+
C
2
-
0.1µF
16V
1.0µF
+
16V
V-
7
+
C
2
-
0.1µF
16V
400kΩ
TTL/CMOS INPUTS
400kΩ
T
1
IN
T
1
OUT
T
1
IN
T
1
400kΩ
T
1
OUT
400kΩ
T
2
IN
11
T
2
8
T
2
OUT
T
2
IN
13
T
2
8
T
2
OUT
TTL/CMOS OUTPUTS
RS232 INPUTS
5kΩ
R
2
OUT
10
5kΩ
R
2
OUT
12
R
2
5kΩ
9
R
2
IN
R
2
5kΩ
9
R
2
IN
SP311E
SP385E
GND
16
18
ON/OFF
SP311E
SP385E
GND
18
20
ON/OFF
SOIC Package
SSOP Package
Date: 03/08/05
SP385E Enhanced +3V to +5V RS-232 Line Driver/Receiver
© Copyright 2005 Sipex Corporation
4
RS232 INPUTS
R
1
OUT
13
R
1
14
TTL/CMOS OUTPUTS
R
1
IN
R
1
OUT
15
R
1
16
R
1
IN
RS232 OUTPUTS
T
1
RS232 OUTPUTS
12
15
TTL/CMOS INPUTS
14
17
