SP237ACS Sipex Corporation, SP237ACS Datasheet

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SP237ACS

Manufacturer Part Number
SP237ACS
Description
+5V powered multi-channel RS-232 drivers/receivers
Manufacturer
Sipex Corporation
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
SP237ACS
Manufacturer:
SIPEX
Quantity:
6 232
Part Number:
SP237ACS
Manufacturer:
SIPEX
Quantity:
20 000
DESCRIPTION…
The SP230A Series are multi–channel 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 and ceramic DIP and SOIC packages.
SELECTION TABLE
SP30A/234A/235A/236A/237A/238A/239A/
SP241A/235B/236B/240A/240B/241A/241B
Operates from Single +5V Power Supply
(+5V and +12V – SP239A)
Meets All RS-232D and V.28 Specifications
Improved Driver Output Capacity for
Mouse Applications
Low Power Shutdown – 1 A
WakeUp Feature in Shutdown Mode
3–State TTL/CMOS Receiver Outputs
Low Power CMOS – 5mA Operation
Wide Charge Pump Capacitor Value
Range – 1-10 F
Model
SP230A
SP234A
SP235A
SP235B
SP236A
SP236B
SP237A
SP238A
SP239A
SP240A
SP240B
SP241A
SP241B
9V Output Swing with +5V Supply
30V Receiver Input Levels
+5V Powered Multi-Channel RS-232 Drivers/Receivers
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V/+8.5 to +13.2V
+5V
+5V
+5V
+5V
Supplies
Power
®
SP230A/234A/235A/236A/237A/238A/239A/241A
Drivers
RS-232
No. of
+5V Powered Multi-Channel RS-232 Drivers/Receivers
5
4
5
5
4
4
5
4
3
5
5
4
4
RS-232
SP235B/236B/240A/240B/241A/241B
No. of
Rcvrs
0
0
5
5
3
3
3
4
5
5
5
5
5
1
Components
4 Capacitors
4 Capacitors
None
None
4 Capacitors
4 Capacitors
4 Capacitors
4 Capacitors
2 Capacitors
4 Capacitors
4 Capacitors
4 Capacitors
4 Capacitors
External
Low Power
Shutdown 3–State
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
© Copyright 2000 Sipex Corporation
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
TTL
No
No
No
No
Wake- No. of
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
No
No
Up
Pins
20
16
24
24
24
24
24
24
24
44
44
28
28

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SP237ACS Summary of contents

Page 1

... Pins Yes Yes Yes No 24 Yes Yes Yes 24 Yes Yes No 24 Yes Yes Yes Yes No 24 Yes Yes No 44 Yes Yes Yes 44 Yes Yes No 28 Yes Yes Yes 28 © Copyright 2000 Sipex Corporation ...

Page 2

... SP239A & SP241A/B s RS232 to TTL 10pF 3– + 2500pF measured from +3V to -3V or -3V to +3V Volts All transmitter outputs loaded with 3k to Ground Ohms OUT mA Infinite duration © Copyright 2000 Sipex Corporation +15V ...

Page 3

... All inputs = 20kHz Receiver Output Waveform In Out SP30A/234A/235A/236A/237A/238A/239A/ SP241A/235B/236B/240A/240B/241A/241B OUT OUT Shutdown to V+, V– Rise Time – V +5V Powered Multi-Channel RS-232 Drivers/Receivers 2,500pF L L Fall Time 2,500pF L L © Copyright 2000 Sipex Corporation ...

Page 4

... OUT OUT OUT GND OUT © Copyright 2000 Sipex Corporation ...

Page 5

... SHUTDOWN (SD OUT OUT OUT GND R OUT © Copyright 2000 Sipex Corporation ...

Page 6

... V thus committing the output to a low state. The slew rate of the transmitter output is internally limited to a maximum of 30V order to meet the 20kbps 100kbps +5V Powered Multi-Channel RS-232 Drivers/Receivers 6 forces the input high, CC 10Mbps 10Mbps 64kbps © Copyright 2000 Sipex Corporation ...

Page 7

... transferred to C forcing a range of 2 across C . Boot–strapping generate and C 3 and C will increase the =5. = =4. (mA) OUT © Copyright 2000 Sipex Corporation will 2 are 4 ...

Page 8

... V and GND + -(V Figure 3. High Voltage Short Circuit Protection +5V Powered Multi-Channel RS-232 Drivers/Receivers levels (refer to Figure 5 OUT 1 15V ZENER T OUT 2 15V ZENER © Copyright 2000 Sipex Corporation ...

Page 9

... VALID DATA DATA VALID VALID t ENABLE SPECIFICATIONS: (V =+5V±10%, T =25° PARAMETER MIN. TYP. MAX. t 2ms 3ms WAIT t 1ms 2ms ENABLE +5V Powered Multi-Channel RS-232 Drivers/Receivers 9 T OUT power up), the part must remain CC DATA VALID t ENABLE © Copyright 2000 Sipex Corporation ...

Page 10

... Powered Multi-Channel RS-232 Drivers/Receivers 10 ® PC serial 22 Ring Indicator Data Terminal Ready Data Carrier Detect 7 Signal Ground Data Set Ready Clear To Send Ready To Send Received Data 2 Received Data D R (To Be Printed) SP237A © Copyright 2000 Sipex Corporation ...

Page 11

... Clear To Send Ready To Send Transmitted Data (To Be Printed) SP231A/232A IBM Printer Port Interconnections +5V Powered Multi-Channel RS-232 Drivers/Receivers 11 ® PC serial 7 Signal Ground Data Set Ready Clear To Send Ready To Send 2 Received Data D R (To Be Printed) SP231A/232A © Copyright 2000 Sipex Corporation ...

Page 12

... Again, in this instance, since the printer will not be sending the PC any data, this line is not needed. +5V Powered Multi-Channel RS-232 Drivers/Receivers 12 © Copyright 2000 Sipex Corporation ...

Page 13

... T T OUT 400k OUT 400k OUT GND 11 235B © Copyright 2000 Sipex Corporation ...

Page 14

... 400k OUT 400k OUT 400k OUT 400k OUT GND 8 238A © Copyright 2000 Sipex Corporation ...

Page 15

... T T OUT 2 2 400k OUT 400k OUT GND 10 241B © Copyright 2000 Sipex Corporation ...

Page 16

... SP236BCX ..................................................................................... +70 C ............................................................................................ Dice SP236BES ................................................................................... – +85 C ................................................................... 24–pin Plastic DIP SP236BET ................................................................................... – +85 C ............................................................................ 24–pin SOIC SP237ACS ..................................................................................... +70 C ..................................................................... 24–pin Plastic DIP SP237ACT ..................................................................................... +70 C .............................................................................. 24–pin SOIC SP237ACX ..................................................................................... +70 C ............................................................................................ Dice SP237AES ................................................................................... – +85 C ................................................................... 24–pin Plastic DIP SP237AET ................................................................................... – ...

Page 17

... FAX: (408) 935-7600 Sipex Corporation reserves the right to make changes to any products described herein. Sipex does not assume any liability arising out of the application or use of any product or circuit described hereing; neither does it convey any license under its patent rights nor the rights of others. ...

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