{"title":"Adafruit RS-232 Full Pinout Level-Shifter Breakout","handle":"adafruit-rs-232-full-pinout-level-shifter-breakout-ada5988","url":"/products/adafruit-rs-232-full-pinout-level-shifter-breakout-ada5988","description":"The Adafruit RS-232 Full Pinout Level-Shifter Breakout lets you interface any 3.3 V microcontroller or single-board computer with RS-232 devices using all 8 data/flow-control signals. Built around the trusted TI MAX3243, it generates the required positive and negative voltages internally and provides 5 input and 3 output channels of level shifting at up to 250 Kbps.\n\nRS-232 uses ±6 to ±10 V signal levels — far outside the range of standard 3.3 V or 5 V logic. This breakout handles all the voltage generation and conversion, and comes fully assembled with a DE-9F connector ready to plug directly into your RS-232 device.\n\nKey Features\n\n\nMAX3243 Level Shifter – 8 channels (5 input, 3 output) for full RS-232 pinout including RTS, CTS, DTR, DSR, DCD, and RI\n\n3.3 V Power & Logic – Runs on 3.3 V, compatible with modern microcontrollers (many older RS-232 chips require 5 V)\n\nUp to 250 Kbps – Suitable for most RS-232 communication needs\n\nDE-9F Connector – Standard 9-pin D-Sub connector for direct plug-in to RS-232 devices\n\nValid Signal Output – Logic-level output goes high when RS-232 signal voltages are detected (connection indicator)\n\nOff/Tri-State Pin – Set high to tri-state all pins for power reduction\n\nFully Assembled – UART side for low-voltage logic, DE-9F side for RS-232; header included for breadboard use\n\n\nIdeal For\n\nInterfacing with industrial and telco equipment\nRetro computing and legacy device communication\nBarcode scanners, modems, and serial terminals\nAny project requiring full RS-232 flow control signals\n\n\nPackage Contents\n\n1× Adafruit RS-232 Full Pinout Level-Shifter Breakout (fully assembled with DE-9F connector)\n1× Header strip (soldering required for breadboard use)\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":938,"title":"Default Title","sku":"AF-5988","mpn":"ADA5988","price":11.03,"compare_at_price":0.0,"on_sale":false,"in_stock":true,"available_quantity":100,"option1":"Default Title"}]}