1
Date: 8/3/04 + 5V Powered Multi-Channel RS-232 Drivers/Receivers Copyright 2004 Sipex Corporation
Operates from Single +5V Power Supply
Meets All RS-232D and V.28 Specifications
9V Output Swing with +5V Supply
Improved Driver Output Capacity for
Mouse Applications
Low Power Shutdown 1
A
WakeUp Feature in Shutdown Mode
3State TTL/CMOS Receiver Outputs
30V Receiver Input Levels
Low Power CMOS 5mA Operation
Wide Charge Pump Capacitor Value
Range 1-10
F
DESCRIPTION...
The SP230A Series are multichannel RS-232 line drivers/receivers that provide a variety of
configurations to fit most communication needs, especially where
12V is not available. Some models
feature a shutdown mode to conserve power in battery-powered systems. Some require no external
components. All, except one model, feature a built-in charge pump voltage converter, allowing them
to operate from a single +5V power supply. All drivers and receivers meet all EIA RS-232D and CCITT
V.28 requirements. The Series is available in plastic DIP and SOIC packages.
SELECTION TABLE
No. of
No. of
Power
RS-232
RS-232
External
Low Power
TTL
Wake- No. of
Model
Supplies
Drivers
Rcvrs
Components
Shutdown 3State
Up
Pins
SP230A
+5V
5
0
4 Capacitors
Yes
No
No
20
SP234A
+5V
4
0
4 Capacitors
No
No
No
16
SP235A
+5V
5
5
None
Yes
Yes
No
24
SP235B
+5V
5
5
None
Yes
Yes
Yes
24
SP236A
+5V
4
3
4 Capacitors
Yes
Yes
No
24
SP236B
+5V
4
3
4 Capacitors
Yes
Yes
Yes
24
SP237A
+5V
5
3
4 Capacitors
No
No
No
24
SP238A
+5V
4
4
4 Capacitors
No
No
No
24
SP240A
+5V
5
5
4 Capacitors
Yes
Yes
No
44
SP240B
+5V
5
5
4 Capacitors
Yes
Yes
Yes
44
SP241A
+5V
4
5
4 Capacitors
Yes
Yes
No
28
SP241B
+5V
4
5
4 Capacitors
Yes
Yes
Yes
28
SP230A/234A/235A/236A/237A/238A/241A
SP235B/236B/240A/240B/241A/241B
+5V Powered Multi-Channel RS-232 Drivers/Receivers
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
SP234A
T OUT
T OUT
T IN
T IN
V-
C -
C +
C -
3
4
2
2
1
T OUT
T OUT
T IN
T IN
GND
V
C +
V+
1
2
CC
1
2
1
3
4
Now Available in Lead Free Packaging
Date: 8/3/04 + 5V Powered Multi-Channel RS-232 Drivers/Receivers Copyright 2004 Sipex Corporation
2
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
+
...................................................................................................................
(Vcc0.3V) to +13.2V
V
.............................................................................................................................................................
13.2V
Input Voltages:
T
IN
.......................................................................................................................
0.3 to (Vcc +0.3V)
R
IN
............................................................................................................................................................
30V
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
All units Vcc=+5V
10%; except SP235A/B, Vcc=+5V
5%; All specifications T
MIN
to T
MAX
unless otherwise noted.
PARAMETERS
MIN.
TYP.
MAX.
UNITS
CONDITIONS
POWER REQUIREMENTS
Vcc Power Supply Current
5
10
mA
No load, T
A
= +25
C
Shutdown Supply Current
1
10
A
T
A
= +25
C
LOGIC INPUTS
Input Logic Threshold
Low
0.8
Volts
T
IN
; EN, SD
High
2.0
Volts
T
IN
; EN, SD
Logic Pullup Current
15
200
A
T
IN
= 0V
RS-232 INPUTS
RS-232 Input Voltage Range
-30
+30
Volts
RS-232 Input Threshold
Low
0.8
1.2
Volts
Vcc = 5V, T
A
= +25
C
High
1.7
2.4
Volts
Vcc = 5V, T
A
= +25
C
RS-232 Input Hysteresis
0.2
0.5
1.0
Volts
Vcc = 5V
RS-232 Input Resistance
3
5
7
kOhms
T
A
= +25
C, -15V
V
IN
+15V
LOGIC OUTPUTS
Output Voltage
Low
0.4
Volts
I
OUT
= 3.2mA
High
3.5
Volts
I
OUT
= 1.0mA
Output Leakage Current
0.05
10
A
EN = V
CC
, 0V
V
OUT
Vcc
RS-232 OUTPUTS
Output Enable Time
400
ns
SP235A/B, SP236A/B,
SP241A/B
Output Disable Time
250
ns
SP235A/B, SP236A/B,
SP241A/B
Propagation Delay
1.5
s
RS232 to TTL
Instantaneous Slew Rate
30
V/
s
C
L
= 10pF, R
L
= 37k
;
T
A
= +25
C
RS-232 OUTPUTS
Transition Region Slew Rate
3
V/
s
C
L
= 2500pF, R
L
= 3k
;
measured from +3V to -3V or
-3V to +3V
Output Voltage Swing
5
9
Volts
All transmitter outputs loaded
with 3k
to Ground
Output Resistance
300
Ohms
V
CC
= 0V; V
OUT
=
2V
RS-232 Output Short Circuit Current
10
mA
Infinite duration
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