®
SP230A/234A/235A/236A/237A/238A/241A
SP235B/236B/240A/240B/241A/241B
+5V Powered Multi-Channel RS-232 Drivers/Receivers
■ Operates from Single +5V Power Supply
■ Meets All RS-232D and V.28 Specifications
■ ±9V Output Swing with +5V Supply
T
T
T
OUT
OUT
IN
1
2
3
4
5
6
7
8
16
15
14
13
T
OUT
OUT
IN
1
2
3
T
T
4
4
2
T
IN
T
IN
1
3
■ Improved Driver Output Capacity for
GND
12 V-
Mouse Applications
V
11
10
9
C
C
C
-
2
2
CC
■ Low Power Shutdown – 1µA
C
+
+
-
1
■ WakeUp Feature in Shutdown Mode
■ 3–State TTL/CMOS Receiver Outputs
■ ±30V Receiver Input Levels
V+
1
Now Available in Lead Free Packaging
■ Low Power CMOS – 5mA Operation
■ Wide Charge Pump Capacitor Value
Range – 1-10µF
DESCRIPTION…
The SP230A Series are multi–channel RS-232 line drivers/receivers that provide a variety of
configurationstofitmostcommunicationneeds, especiallywhere±12Visnotavailable. Somemodels
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
tooperatefromasingle+5Vpowersupply. AlldriversandreceiversmeetallEIARS-232DandCCITT
V.28 requirements. The Series is available in plastic DIP and SOIC packages.
SELECTION TABLE
No. of
No. of
Power
Supplies
+5V
RS-232 RS-232
Drivers Rcvrs
External
Low Power TTL Wake- No. of
Model
Components Shutdown 3–State Up
Pins
20
16
24
24
24
24
24
24
44
44
28
28
SP230A
SP234A
SP235A
SP235B
SP236A
SP236B
SP237A
SP238A
SP240A
SP240B
SP241A
SP241B
5
4
5
5
4
4
5
4
5
5
4
4
0
0
5
5
3
3
3
4
5
5
5
5
4 Capacitors
4 Capacitors
None
Yes
No
No
No
No
No
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
No
No
None
Yes
No
4 Capacitors
4 Capacitors
4 Capacitors
4 Capacitors
4 Capacitors
4 Capacitors
4 Capacitors
4 Capacitors
Yes
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
No
Yes
Date: 8/3/04
+ 5V Powered Multi-Channel RS-232 Drivers/Receivers
© Copyright 2004 Sipex Corporation
1