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What is RS-232?

In telecommunications, RS-232 is the name of the standard for serial binary single-ended data and control signals between a DTE (Data Terminal Equipment) and a DCE (Data Circuit-terminating Equipment). RS 232 is commonly used in a computer’s serial port. The RS232 standard defines the electrical characteristics as well as the timing of signals, their meaning and the physical size and pin out of the connectors. An RS-232 port can be found in PCs for connections to peripheral devices. However, due to their limited transmission speed and large connector sizes, the USB was developed. RS 232 devices can also be found in industrial machines or scientific instruments. The RS232 standard sets acceptable signal and voltage levels, along with common pinout configurations for wiring serial connector ports. The standard also specifies the protocols for control information between devices, including events such as indicating the beginning or end of a data stream.

Types of RS 232 chips

There are many different kinds of RS-232 chips and at Future Electronics we stock many of the most common types categorized by data rate, supply voltage, operating temperature range, packaging type and ESD voltage. The parametric filters on our website can help refine your search results depending on the specifications required.

The most common sizes for Data rate are 120 kbps, 230 kbps, 250 kbps and 1000 kbps. We also carry RS232 chips with data rate sizes up to 10 Mbps. Operating temperature can range from -40 oC to 75 oC.

RS 232 chips from Future Electronics

Future Electronics has a full selection of RS-232 chips from several manufacturers suitable for programming, including to be used as a RS-232 to RS-485 converter, RS 232 to USB, RS-232 port, RS-232 to ethernet, RS-232 to serial port or an RS232 splitter. Simply choose from the RS-232 technical attributes below and your search results will quickly be narrowed to match your specific RS 232 or RS 232 / RS 485 application needs.

If you have a preferred brand, we deal with several manufacturers such as EXAR, ON Semiconductor or STMicroelectronics. You can easily refine your RS 232 product search results by clicking your preferred RS232 brand below from our list of manufacturers.

Applications for RS232 chips:

RS-232 chips can be found in computers, printers and test instruments. For several years, an RS-232-compatible port was used in serial communications such as modem connections on l computers. In personal computer peripherals, it has largely been supplanted by the USB. RS232 is still being used to connect older designs of peripherals, industrial equipment, PLCs, console ports, and special equipment such as a cash register’s cash drawer.

Choosing the RS-232 chip:

When you are looking for the right RS 232 chip or RS 232 / 485 chip, with the FutureElectronics.com parametric search, you can filter the results by various attributes: by Data Rate (120 kbps, 230 kbps, 250 kbps, …), Operating temperature range (-40 oC to 75 oC), Supply Voltage (up to 20V) and ESD Voltage (up to 2.5 kV) to name a few. You will be able to find the right chip for programming your system including for a RS-232 to RS-485 converter, RS-232 to ethernet, RS-232 to serial port, RS232 splitter, RS 232 to USB or RS-232 port,.

RS 232 and RS 232 / RS 485 chips in Production Ready Packaging or R&D Quantities

If the quantity of RS-232 and RS-232 / 485 chips required is less than a full reel, we offer customers many of our RS232 and RS232/485 products in tube, tray or individual quantities that will avoid unneeded surplus.

In addition, Future Electronics offers clients a unique bonded inventory program that is designed to eliminate potential problems that may arise from an unpredictable supply of products containing raw metals and products with erratic or long lead times. Talk with your nearest Future Electronics branch and find out more on how you and your company can avoid possible shortages.



Featured RS-232 & RS-232/RS-485 Products


Manufacturer Part Number Description
EXAR SP3232EEY-L/TR SP3232E Series 120 kbps 5.5 V True RS-232 Transceiver - TSSOP-16
EXAR SP232ACN-L/TR SP232A Series 120 kbps Enhanced RS-232 Line Driver/Receiver - SOIC16N
EXAR SP3222EBCY-L/TR SP3222EB Series 250 kbps 5.5 V True RS-232 Transceiver - TSSOP-20
EXAR SP232ACT-L/TR SP232A Series 120 kbps Enhanced RS-232 Line Driver/Receiver - WSOIC-16
EXAR SP232AEN-L/TR SP232A Series 120 kbps Enhanced RS-232 Line Driver/Receiver - NSOIC-16
EXAR SP3238EEA-L/TR SP3238E Series 250 kbps 5.5 V Intelligent RS-232 Transceiver - SSOP-28
EXAR SP3232EBCY-L/TR SP3232EB Series 250 kbps 5.5 V True RS-232 Transceiver - TSSOP-16
EXAR SP3232ECY-L/TR SP3232E Series 120 kbps 5.5 V True RS-232 Transceiver - TSSOP-16
EXAR SP3232EBEY-L/TR SP3232EB Series 250 kbps 5.5 V True RS-232 Transceiver - TSSOP-16
EXAR SP3232EUCN-L SP3232EU Series 1000 Kbps 3.3 V RS-232 SMT Transceiver - NSOIC-16
EXAR SP3232EBEN-L SP3232EB Series 250 kbps 5.5 V True RS-232 Transceiver - NSOIC-16
EXAR SP232EEN-L/TR SP232E Series 120 kbps High Performance RS-232 Line Driver/Receiver - NSOIC-16
EXAR SP232AEN-L SP232A Series 120 kbps Enhanced RS-232 Line Driver/Receiver - NSOIC-16
EXAR SP2209EEY-L SP2209E Series 460 kbps High ESD Dual Port RS-232 Transceiver - TSSOP-38
EXAR SP334ET-L SP334 Series 10 Mbps 5 V Programmable RS-232/RS-485 Transceiver - SOIC-28
EXAR SP331CT-L SP331 Series 10 Mbps 5 V Programmable RS-232/RS-485 Transceiver - SOIC-28
EXAR SP332ET-L SP332 Series 10 Mbps 5 V RS-232/RS-485 Multi-Mode Serial Transceiver - SOIC-28
ON Semiconductor MC1489ADG MC1489 Series 10 V 0 to 75°C Surface Mount Quad Line EIA−232D Driver - SOIC-14
ON Semiconductor MC1489APG MC1489 Series 10 V 0 to 75°C Through Hole Quad Line EIA−232D Driver - PDIP-14
ON Semiconductor MC1488D MC1488 Series 15 V 0 to 75°C Surface Mount Quad Line EIA−232D Driver - SOIC-14
STMicroelectronics ST3232CWR ST3232 Series 5.5 V 400 kbps Low Power RS-232 Driver and Receiver - SOIC-16
STMicroelectronics ST3241EBPR ST3241E Series 5.5 V ± 15 kV ESD Protected RS-232 Transceiver - SSOP-28
STMicroelectronics ST232CN ST232 Series 5 V Powered Multi Channel RS-232 Driver and Receiver - DIP16
STMicroelectronics ST232CDR ST232 Series 5 V Powered Multi Channel RS-232 Driver and Receiver - SOIC-16

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