{"product_id":"max3232-smd-ic","title":"MAX3232 SMD IC","description":"\u003cp\u003e\u003cstrong\u003eMAX3232 IC\u003c\/strong\u003e is extensively used for serial communication in between Microcontroller and a computer for changing the TTL\/CMOS logic levels to RS232. So, if we want to interface any microcontroller with the Computer, first we have to convert the logic of \u003ca title=\"Transistor transistor logic : history, types, working \u0026amp; its applications\" href=\"https:\/\/www.elprocus.com\/transistor-transistor-logic-ttl\/\" target=\"_blank\" rel=\"noopener\" aria-describedby=\"a11y-new-window-external-message\"\u003eTTL\u003c\/a\u003e\/CMOS to RS232.\u003c\/p\u003e\n\u003cp\u003eAlternate names of this IC are; RS232 to TTL Converter IC, MAX3232IDBRE4, AX3232CAE, MAX232CSE,  MAX3232 SMD IC, MAX3232 IC, Surface Mount Device RS-232 Transceivers IC, SMD IC, RS-232 Transceivers SMD \u0026amp; SMD IC. This article discusses an overview of a MAX3232 IC, pin configuration, specifications, and its applications.\u003c\/p\u003e\n\u003ch2\u003eWhat is MAX3232 IC?\u003c\/h2\u003e\n\u003cp\u003eMAX3232 IC is a converter IC, used to convert RD232 to TTL. This IC includes line drivers-2, line receivers-2 \u0026amp; a circuit for dual \u003ca title=\"Charge pump: construction, working, types \u0026amp; its applications\" href=\"https:\/\/www.elprocus.com\/what-is-charge-pump-working-its-applications\/\" target=\"_blank\" rel=\"noopener\" aria-describedby=\"a11y-new-window-external-message\"\u003echarge-pump\u003c\/a\u003e including ESD protection from terminal to terminal with 15 kV. The requirements of TIA\/EIA-232-F can be attained by this IC to provide an interface in between the serial-port connector \u0026amp; an asynchronous communication controller.\u003c\/p\u003e\n\u003cdiv id=\"elpro-370548081\" class=\"elpro-content\"\u003e\u003c\/div\u003e\n\u003cfigure id=\"attachment_41601\" class=\"wp-caption aligncenter\" aria-describedby=\"caption-attachment-41601\"\u003e\u003cimg class=\"size-medium wp-image-41601\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/3623\/2249\/files\/MAX3232-IC.jpg?v=1789246238\" sizes=\"(max-width: 300px) 100vw, 300px\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/3623\/2249\/files\/MAX3232-IC.jpg?v=1789246238  300w, https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/3623\/2249\/files\/MAX3232-IC.jpg?v=1789246238  200w, https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/3623\/2249\/files\/MAX3232-IC.jpg?v=1789246238  480w\" alt=\"MAX3232 IC\" width=\"300\" height=\"188\" loading=\"lazy\"\u003e\u003cfigcaption id=\"caption-attachment-41601\" class=\"wp-caption-text\"\u003eMAX3232 IC\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003cp\u003eTransceivers like MAX3222 \u0026amp; MAX3232 use fewer dropout transmitter output phases and also dual charge pumps for achieving the right RS232 performance once powered through the supply like 3V-5.5V. The supply voltage of max3232 is 5volts or 3.3 volts, which uses 0.3mA of power which is connected externally through 4 0.1uF capacitors.\u003c\/p\u003e\n\u003ch3\u003ePin Configuration:\u003c\/h3\u003e\n\u003cp\u003eThe pin configuration of MAX3232 IC includes 16- pins where each pin and its functionality is shown below:\u003c\/p\u003e\n\u003cfigure id=\"attachment_41600\" class=\"wp-caption aligncenter\" aria-describedby=\"caption-attachment-41600\"\u003e\u003cimg class=\"size-full wp-image-41600\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/3623\/2249\/files\/MAX3232-IC-Pin-Configuration.jpg?v=1789246241\" sizes=\"(max-width: 200px) 100vw, 200px\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/3623\/2249\/files\/MAX3232-IC-Pin-Configuration.jpg?v=1789246241  200w, https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/3623\/2249\/files\/MAX3232-IC-Pin-Configuration.jpg?v=1789246241  150w, https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/3623\/2249\/files\/MAX3232-IC-Pin-Configuration.jpg?v=1789246241  100w, https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/3623\/2249\/files\/MAX3232-IC-Pin-Configuration.jpg?v=1789246241  137w\" alt=\"MAX3232 IC Pin Configuration\" width=\"200\" height=\"201\" loading=\"lazy\"\u003e\u003cfigcaption id=\"caption-attachment-41600\" class=\"wp-caption-text\"\u003eMAX3232 IC Pin Configuration\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin1 (C1+):\u003c\/strong\u003e This pin is the positive terminal of capacitor ‘C1’.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin2 (V+):\u003c\/strong\u003e Positive charge pump o\/p for storage capacitor only.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin3 (C1-):\u003c\/strong\u003e This pin is a negative terminal of capacitor ‘C1’.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin4 (C2+):\u003c\/strong\u003e This is a positive terminal of the ‘C2’ capacitor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin5 (C2-):\u003c\/strong\u003e This is a negative terminal of the ‘C2’ capacitor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin6 (V-):\u003c\/strong\u003e Negative charge pump o\/p for storage capacitor only.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin7 (DOUT2):\u003c\/strong\u003e The output of RS232 line data.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin8 (RIN2):\u003c\/strong\u003e The input of RS232 line data.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin9 (ROUT2):\u003c\/strong\u003e Logic data o\/p to UART.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin10 (DIN2):\u003c\/strong\u003e Logic data i\/p from UART).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin11 (DIN1):\u003c\/strong\u003e Logic data i\/p from UART.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin12 (ROUT1):\u003c\/strong\u003e Logic data o\/p to UART).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin13 (RIN1):\u003c\/strong\u003e The input of RS232 line data from the remote RS232 system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin14 (DOUT1):\u003c\/strong\u003e The output of RS232 line data to remote RS232 system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin15 (Ground):\u003c\/strong\u003e Ground pin.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin16 (Vcc):\u003c\/strong\u003e Voltage supply pin.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFeatures \u0026amp; Specifications:\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003efeatures and specifications of MAX3232 IC\u003c\/strong\u003e include the following.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIt can work with 5V \u0026amp; 3.3V logic devices.\u003c\/li\u003e\n\u003cli\u003eTTL to RS232 Converter IC.\u003c\/li\u003e\n\u003cli\u003eIt supports two conversions like Dual drivers \u0026amp; Receivers.\u003c\/li\u003e\n\u003cli\u003eSimple to set up \u0026amp; initialize.\u003c\/li\u003e\n\u003cli\u003eThe operating speed is 120kbit\/s.\u003c\/li\u003e\n\u003cli\u003eThe operating current is 8mA.\u003c\/li\u003e\n\u003cli\u003eIt is accessible in 16-pin SO, PDIP \u0026amp; SOIC packages.\u003c\/li\u003e\n\u003cli\u003eManufacturer by Texas Instruments.\u003c\/li\u003e\n\u003cli\u003eTR Packaging (Tape and Reel).\u003c\/li\u003e\n\u003cli\u003eThe receiver of hysteresis is 300mV.\u003c\/li\u003e\n\u003cli\u003eStatus of part is Active.\u003c\/li\u003e\n\u003cli\u003ePackage or Case is 16-SOIC.\u003c\/li\u003e\n\u003cli\u003eTransceiver type.\u003c\/li\u003e\n\u003cli\u003eThe type of mounting is surface mount.\u003c\/li\u003e\n\u003cli\u003eRS232 Protocol.\u003c\/li\u003e\n\u003cli\u003eOperating temperature ranges from 0°C to 70°C.\u003c\/li\u003e\n\u003cli\u003eThe number of drivers is 2.\u003c\/li\u003e\n\u003cli\u003eVoltage supply ranges from 3Volts to 5.5V.\u003c\/li\u003e\n\u003cli\u003eThe number of receivers is 2.\u003c\/li\u003e\n\u003cli\u003e250kbps data rate.\u003c\/li\u003e\n\u003cli\u003eFull duplex.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe equivalent MAX3232 IC is \u003ca title=\"Max232 ic : pin configuration, circuit, working \u0026amp; its applications\" href=\"https:\/\/www.elprocus.com\/max232-ic\/\" target=\"_blank\" rel=\"noopener\" aria-describedby=\"a11y-new-window-external-message\"\u003eMAX232 IC\u003c\/a\u003e and Alternative MAX3232 IC is FT232RL, RS232 adapter cable, RS232 module \u0026amp; RS232 converters.\u003c\/p\u003e\n\u003ch4\u003eMAX3232 vs MAX232:\u003c\/h4\u003e\n\u003cp\u003eThe main difference between MAX3232 \u0026amp; MAX232 is discussed below.\u003c\/p\u003e\n\u003cp\u003eBoth ICs like MAX3232 \u0026amp; MAX232 have a similar pin configuration \u0026amp; package style. The MAX3232 IC supports both 3.3V \u0026amp; 5V based systems, whereas the MAX232 IC supports 5V based systems thus, MAX3232 IC is a better choice as compared to MAX232 if you are working through a 3.3V based system, as it avoids the issue while converting logic level. Here, MAX232 IC is the most commonly used TTL to RS232 converter IC.\u003c\/p\u003e\n\u003cdiv id=\"elpro-855835894\" class=\"elpro-ourpcb_inline\"\u003e\u003c\/div\u003e\n\u003ch3\u003eHow to use MAX3232 IC\/Circuit Diagram:\u003c\/h3\u003e\n\u003cp\u003eThe circuit diagram of MAX3232 IC is shown below. In this circuit, MAX3232 IC is interfaced with a microcontroller. This circuit is very simple to design due to the simple setup of the IC and it works with 3.3V or +5V. So the Vcc pin is powered with the required voltage whereas the GND pin of this IC is given to circuit ground.\u003c\/p\u003e\n\u003cp\u003eIn this circuit, the IC which is used needs four \u003ca title=\"Types of capacitors : working and their applications\" href=\"https:\/\/www.elprocus.com\/capacitors-types-applications\/\" target=\"_blank\" rel=\"noopener\" aria-describedby=\"a11y-new-window-external-message\"\u003ecapacitors\u003c\/a\u003e to work, and its value range from 1uF – 22uF. The main function of this IC is to change the logic level by using a microcontroller. Here the microcontroller is connected to a PC. In the following circuit, we can notice that pins in the IC like T2 in, T2 out, R2 in \u0026amp; R2 out are not connected because we are not using the second module.\u003c\/p\u003e\n\u003cfigure id=\"attachment_41599\" class=\"wp-caption aligncenter\" aria-describedby=\"caption-attachment-41599\"\u003e\u003cimg class=\"wp-image-41599 size-full\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/3623\/2249\/files\/MAX3232-Converter-IC-with-Microcontroller.jpg?v=1789246244\" sizes=\"(max-width: 506px) 100vw, 506px\" srcset=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/3623\/2249\/files\/MAX3232-Converter-IC-with-Microcontroller.jpg?v=1789246244  506w, https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/3623\/2249\/files\/MAX3232-Converter-IC-with-Microcontroller.jpg?v=1789246244  300w, https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/3623\/2249\/files\/MAX3232-Converter-IC-with-Microcontroller.jpg?v=1789246244  170w\" alt=\"MAX3232 Converter IC with Microcontroller\" width=\"506\" height=\"384\" data-clarity-loaded=\"1319z4i\" loading=\"lazy\"\u003e\u003cfigcaption id=\"caption-attachment-41599\" class=\"wp-caption-text\"\u003eMAX3232 Converter IC with Microcontroller\u003c\/figcaption\u003e\u003c\/figure\u003e\n\u003cp\u003eEvery microcontroller has the capability of serial communication that includes a transmitter (Tx) pin \u0026amp; a Receiver (Rx) pin. The connection of these two pins can be done to the Pin 11 (T1 in) \u0026amp; Pin 12 (R1 out) respectively. Here, pin 12 and pin 11 are TTL\/\u003ca title=\"Cmos technology : working principle, characteristics \u0026amp; its applications\" href=\"https:\/\/www.elprocus.com\/cmos-working-principle-and-applications\/\" target=\"_blank\" rel=\"noopener\" aria-describedby=\"a11y-new-window-external-message\"\u003eCMOS\u003c\/a\u003e logic inputs, and the logic signals of the RS232 converter can be obtained using pin 13 (R1 in) \u0026amp; pin 14 (T1 out).\u003c\/p\u003e\n\u003cdiv id=\"elpro-2145063169\" class=\"elpro-content3\"\u003e\u003c\/div\u003e\n\u003cp\u003eHere when the IC is powered with 3.3V or 5V, a 3.3V\/5V signal is converted into a +25V signal through a technique known as a charge pump, which includes a capacitor that gets charged to supply 25V.\u003c\/p\u003e\n\u003ch3\u003eWhere to use\/Applications:\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eapplications of MAX3232 IC\u003c\/strong\u003e include the following.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMAX3232 IC is used in converting TTL or CMOS to RS232.\u003c\/li\u003e\n\u003cli\u003eThe \u003ca title=\"Different microcontrollers used in automobiles\" href=\"https:\/\/www.elprocus.com\/different-microcontrollers-used-in-automobiles\/\" target=\"_blank\" rel=\"noopener\" aria-describedby=\"a11y-new-window-external-message\"\u003edifferent Microcontrollers\u003c\/a\u003e like ARM or PIC or Atmel uses TTL or CMOS logic which works through either 0V (or) +5V, however, our computers work through RS232 at -24V or +24V.\u003c\/li\u003e\n\u003cli\u003eAs a result, if we want to interface a microcontroller with the computer then we need to change the logic from TTL or CMOS to RS232.\u003c\/li\u003e\n\u003cli\u003eSo, if you are seeking an \u003ca title=\"Integrated circuits : design, working, advantages \u0026amp; disadvantages\" href=\"https:\/\/www.elprocus.com\/how-integrated-circuits-work-physically\/\" target=\"_blank\" rel=\"noopener\" aria-describedby=\"a11y-new-window-external-message\"\u003eintegrated circuit\u003c\/a\u003e to achieve this conversion \u0026amp; also to interface any microcontroller through your computer, then this IC is the correct choice for you.\u003c\/li\u003e\n\u003cli\u003eUsed to convert TTL or CMOS logic to RS232.\u003c\/li\u003e\n\u003cli\u003eHand-Held device.\u003c\/li\u003e\n\u003cli\u003eUtilized in RS232 cables.\u003c\/li\u003e\n\u003cli\u003ePalmtop personal computers.\u003c\/li\u003e\n\u003cli\u003eBattery-operated systems.\u003c\/li\u003e\n\u003cli\u003eNotebooks.\u003c\/li\u003e\n\u003cli\u003ePDAs.\u003c\/li\u003e\n\u003cli\u003eLaptops.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePlease refer to this link to know more about \u003ca title=\"Max3232 ic datasheet.\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0965\/3623\/2249\/files\/max3232.pdf?v=1789246246\" target=\"_blank\" rel=\"noopener\" aria-describedby=\"a11y-new-window-external-message\"\u003eMAX3232 IC Datasheet.\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eThus, MAX3232 IC with SO-16 Package \u0026amp; RS232 Interface is used for interfacing a microcontroller with a computer, used within RS232 cables \u0026amp; also for converting TTL\/CMOS logic to RS232. Here is a question for you, what are the different serial communication is available in the market?\u003c\/p\u003e","brand":"Electronics Hub","offers":[{"title":"Default Title","offer_id":54467422290233,"sku":"product-16447","price":0.0,"currency_code":"PKR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/3623\/2249\/files\/MAX3232-SMD-RS-232-Transceivers-IC.jpg?v=1789246251","url":"https:\/\/electronicshub.pk\/products\/max3232-smd-ic","provider":"Electronics Hub","version":"1.0","type":"link"}