{"product_id":"2004a-lcd-20x4-character-display","title":"2004A LCD 20x4 Character Display with Blue Backlight","description":"\u003cp\u003eThe \u003cstrong\u003e2004A 20x4 Character\u003ca href=\"\/collections\/lcd-oled-display-modules\" title=\"lcd display modules\"\u003e LCD\u003c\/a\u003e\u003c\/strong\u003e is a blue backlight alphanumeric display featuring a \u003cstrong\u003e16-pin parallel \u003ca href=\"\/collections\/data-interface-modules\" title=\"data interface modules\"\u003einterface\u003c\/a\u003e\u003c\/strong\u003e, \u003cstrong\u003eKS0073 or equivalent controller\u003c\/strong\u003e, and 4-bit\/8-bit communication. It supports HD44780-compatible character LCD libraries for \u003ca href=\"\/collections\/arduino-broards\" title=\"arduino boards\"\u003eArduino\u003c\/a\u003e, microcontroller and embedded display projects.\u003c\/p\u003e\n\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e2004A LCD 20x4 Character Display with Blue Backlight\u003c\/strong\u003e is an alphanumeric LCD module capable of displaying \u003cstrong\u003e20 characters on each of 4 lines\u003c\/strong\u003e. Its four-line layout provides useful display space for sensor readings, measurements, menus, system status, messages and other text or numerical information.\u003c\/p\u003e\n\u003cp\u003eThe module uses a \u003cstrong\u003eKS0073 or equivalent controller IC\u003c\/strong\u003e with \u003cstrong\u003eCOB (Chip-on-Board) construction\u003c\/strong\u003e. It features a standard \u003cstrong\u003e16-pin parallel interface\u003c\/strong\u003e with D0–D7 data lines and supports both \u003cstrong\u003e4-bit and 8-bit communication modes\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe display also supports \u003cstrong\u003eHD44780-compatible character LCD libraries\u003c\/strong\u003e, making it suitable for Arduino and other microcontroller-based projects when correctly wired and configured. Its blue character display with LED backlight is suitable for embedded systems, instruments, control panels and DIY electronics requiring a multi-line user interface.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e20 characters × 4 lines\u003c\/strong\u003e display format\u003c\/li\u003e\n\u003cli\u003eBlue character LCD with LED backlight\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2004A\u003c\/strong\u003e character LCD module\u003c\/li\u003e\n\u003cli\u003ePCB marking: \u003cstrong\u003eQC2004A\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKS0073 or equivalent\u003c\/strong\u003e controller IC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCOB (Chip-on-Board)\u003c\/strong\u003e construction\u003c\/li\u003e\n\u003cli\u003eStandard \u003cstrong\u003e16-pin parallel interface\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSupports \u003cstrong\u003e4-bit and 8-bit communication\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSupports \u003cstrong\u003eHD44780-compatible character LCD libraries\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSTN\/FSTN\u003c\/strong\u003e display mode\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eFour PCB mounting holes\u003c\/li\u003e\n\u003cli\u003eSuitable for Arduino, microcontroller and embedded display projects\u003c\/li\u003e\n\u003cli\u003eNo integrated I2C backpack\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv class=\"group TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"last:pe-10\"\u003eSpecification\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eAlphanumeric Character LCD Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e2004A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePCB Marking\u003c\/td\u003e\n\u003ctd\u003eQC2004A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay Format\u003c\/td\u003e\n\u003ctd\u003e20 Characters × 4 Lines\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay Mode\u003c\/td\u003e\n\u003ctd\u003eSTN\/FSTN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay Color\u003c\/td\u003e\n\u003ctd\u003eBlue\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBacklight\u003c\/td\u003e\n\u003ctd\u003eLED\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eController IC\u003c\/td\u003e\n\u003ctd\u003eKS0073 or Equivalent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eController Package\u003c\/td\u003e\n\u003ctd\u003eCOB (Chip-on-Board)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface\u003c\/td\u003e\n\u003ctd\u003e16-Pin Parallel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Mode\u003c\/td\u003e\n\u003ctd\u003e4-bit \/ 8-bit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Lines\u003c\/td\u003e\n\u003ctd\u003eD0–D7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl Lines\u003c\/td\u003e\n\u003ctd\u003eRS, R\/W, E\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLibrary Compatibility\u003c\/td\u003e\n\u003ctd\u003eHD44780-Compatible Character LCD Libraries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Size (W × H × T)\u003c\/td\u003e\n\u003ctd\u003e98 × 60 × 13.8 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eViewing Area (L × W)\u003c\/td\u003e\n\u003ctd\u003e76 × 26 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eViewing Direction\u003c\/td\u003e\n\u003ctd\u003e6 o'clock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharacter Size (W × H)\u003c\/td\u003e\n\u003ctd\u003e2.94 × 4.74 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDot Size (W × H)\u003c\/td\u003e\n\u003ctd\u003e0.54 × 0.54 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-20°C to +70°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003e4 PCB Mounting Holes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eI2C Interface\u003c\/td\u003e\n\u003ctd\u003eNot Integrated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003ePin Configuration\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e1-VSS (GND), 2-VDD (Power), 3-VO (Contrast), 4-RS, 5-R\/W, 6-E, 7-D0, 8-D1, 9-D2, 10-D3, 11-D4, 12-D5, 13-D6, 14-D7, 15-A (Backlight Anode), 16-K (Backlight Cathode)\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eController \u0026amp; Library Compatibility\u003c\/h3\u003e\n\u003cp\u003eThe 2004A LCD is specified with a \u003cstrong\u003eKS0073 or equivalent controller IC\u003c\/strong\u003e using \u003cstrong\u003eCOB construction\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe module supports \u003cstrong\u003eHD44780-compatible character LCD libraries\u003c\/strong\u003e. This refers to its \u003cstrong\u003elibrary\/interface compatibility\u003c\/strong\u003e and should not be interpreted as a claim that the physical controller IC is an HD44780.\u003c\/p\u003e\n\u003cp\u003eIt can display alphanumeric characters, numbers and supported symbols, while compatible character LCD functionality can also be used for custom characters. The exact built-in character ROM variant is not specified, so we should not advertise a specific full HD44780 character-ROM set.\u003c\/p\u003e\n\u003ch3\u003eApplications \/ Use Cases\u003c\/h3\u003e\n\u003cp\u003eThe 2004A 20x4 LCD is suitable for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eArduino display projects\u003c\/li\u003e\n\u003cli\u003eMicrocontroller-based projects\u003c\/li\u003e\n\u003cli\u003eEmbedded system interfaces\u003c\/li\u003e\n\u003cli\u003eSensor-data displays\u003c\/li\u003e\n\u003cli\u003eTemperature and humidity monitoring systems\u003c\/li\u003e\n\u003cli\u003eMeasurement and instrumentation equipment\u003c\/li\u003e\n\u003cli\u003ePower supply and UPS displays\u003c\/li\u003e\n\u003cli\u003eElectronic control panels\u003c\/li\u003e\n\u003cli\u003eMenu-based user interfaces\u003c\/li\u003e\n\u003cli\u003eStatus and diagnostic displays\u003c\/li\u003e\n\u003cli\u003eDIY electronics and prototyping\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eThe module uses a \u003cstrong\u003e16-pin parallel interface\u003c\/strong\u003e and supports \u003cstrong\u003e4-bit and 8-bit communication\u003c\/strong\u003e. It can be integrated with microcontrollers capable of driving compatible character LCD interfaces.\u003c\/p\u003e\n\u003cp\u003eSupport for \u003cstrong\u003eHD44780-compatible character LCD libraries\u003c\/strong\u003e makes the module suitable for common Arduino character-LCD applications when correctly wired and configured.\u003c\/p\u003e\n\u003cp\u003eArduino is a compatible application platform; it is \u003cstrong\u003enot part of the product itself or included in the package\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e1 × 2004A 20x4 Blue Character LCD Module\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eBuy 2004A LCD 20x4 in Pakistan\u003c\/h3\u003e\n\u003cp\u003eBuy the \u003cstrong\u003e2004A LCD 20x4 character display in Pakistan\u003c\/strong\u003e from Chip.pk for Arduino, microcontroller, embedded systems and electronics projects. This blue backlight LCD provides a 20-character × 4-line display with a 16-pin parallel interface and supports HD44780-compatible character LCD libraries.\u003c\/p\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003ch4\u003eWhat is a 2004A LCD?\u003c\/h4\u003e\n\u003cp\u003eThe 2004A LCD is an alphanumeric character display that provides \u003cstrong\u003e20 characters per line across 4 lines\u003c\/strong\u003e. It is useful for displaying text, numerical values, menus, measurements and system-status information in electronics projects.\u003c\/p\u003e\n\u003ch4\u003eWhat controller IC does this 2004A LCD use?\u003c\/h4\u003e\n\u003cp\u003eThe module is specified with a \u003cstrong\u003eKS0073 or equivalent controller IC\u003c\/strong\u003e using \u003cstrong\u003eCOB (Chip-on-Board)\u003c\/strong\u003e construction.\u003c\/p\u003e\n\u003ch4\u003eDoes this 20x4 LCD support HD44780 libraries?\u003c\/h4\u003e\n\u003cp\u003eYes. The module supports \u003cstrong\u003eHD44780-compatible character LCD libraries\u003c\/strong\u003e. This refers to library and command compatibility; the specified controller IC is \u003cstrong\u003eKS0073 or equivalent\u003c\/strong\u003e, not an HD44780 IC.\u003c\/p\u003e\n\u003ch4\u003eCan I use this 20x4 LCD with Arduino?\u003c\/h4\u003e\n\u003cp\u003eYes. The display can be used in Arduino character-LCD projects through its parallel interface when correctly wired and configured with a compatible character LCD library. An Arduino board is not included with the LCD.\u003c\/p\u003e\n\u003ch4\u003eDoes this 2004A LCD have an I2C interface?\u003c\/h4\u003e\n\u003cp\u003eNo integrated I2C backpack is included on the supplied module. It uses a \u003cstrong\u003e16-pin parallel interface\u003c\/strong\u003e. An appropriate external I2C interface would be required for an I2C-based connection.\u003c\/p\u003e\n\u003ch4\u003eDoes the LCD support 4-bit and 8-bit modes?\u003c\/h4\u003e\n\u003cp\u003eYes. The module supports both \u003cstrong\u003e4-bit and 8-bit parallel communication modes\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch4\u003eWhat are the dimensions of the 2004A LCD?\u003c\/h4\u003e\n\u003cp\u003eThe specified module size is \u003cstrong\u003e98 × 60 × 13.8 mm\u003c\/strong\u003e, with a \u003cstrong\u003e76 × 26 mm viewing area\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch4\u003eWhat is the operating temperature range?\u003c\/h4\u003e\n\u003cp\u003eThe specified operating temperature range is \u003cstrong\u003e-20°C to +70°C\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch4\u003eWhat is the viewing direction of this LCD?\u003c\/h4\u003e\n\u003cp\u003eThe specified viewing direction is \u003cstrong\u003e6 o'clock\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch4\u003eWhere can I buy a 2004A 20x4 LCD in Pakistan?\u003c\/h4\u003e\n\u003cp\u003eThe \u003cstrong\u003e2004A 20x4 character LCD\u003c\/strong\u003e can be ordered online from Chip.pk, subject to current stock availability.\u003c\/p\u003e","brand":"Chip.pk","offers":[{"title":"Default Title","offer_id":52911296151837,"sku":"CP-DSP-LCD2004A","price":790.0,"currency_code":"PKR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0998\/1060\/7389\/files\/chip_pk_lcd_20x4_3.webp?v=1789072964","url":"https:\/\/www.chip.pk\/products\/2004a-lcd-20x4-character-display","provider":"Chip.pk","version":"1.0","type":"link"}