{"id":35207,"date":"2026-08-26T17:48:57","date_gmt":"2026-08-26T14:48:57","guid":{"rendered":"https:\/\/qariya.net\/?post_type=product&p=35207"},"modified":"2026-08-26T17:48:57","modified_gmt":"2026-08-26T14:48:57","slug":"74hc148-74148-8-to-3-priority-encoder-ic","status":"publish","type":"product","link":"https:\/\/qariya.net\/en\/product\/74hc148-74148-8-to-3-priority-encoder-ic\/","title":{"rendered":"74HC148 \/ 74148 \u2013 8-to-3 Priority Encoder IC"},"content":{"rendered":"

74HC148 \/ 74148 \u2013 8-to-3 Priority Encoder IC<\/strong><\/h1>\n

Product Description<\/h2>\n

The 74HC148 \/ 74148<\/strong> is an 8-to-3 priority encoder IC<\/strong> designed to convert one of eight input signals into a 3-bit binary output. It includes priority logic, meaning that when multiple inputs are active at the same time, the input with the highest priority is encoded at the output.<\/p>\n

The IC features active-low inputs and outputs<\/strong> and includes enable and cascading functions, making it suitable for expanding encoder systems and building more complex digital logic circuits.<\/p>\n

Key Features<\/h2>\n
    \n
  • 8-to-3 line priority encoder.<\/li>\n
  • Converts 8 input lines into a 3-bit binary code.<\/li>\n
  • Priority logic for handling multiple active inputs.<\/li>\n
  • Active-low data inputs and outputs.<\/li>\n
  • Enable input and enable output for cascading.<\/li>\n
  • Wide operating voltage range for the 74HC version: 2V to 6V<\/strong>.<\/li>\n
  • High-speed CMOS logic.<\/li>\n
  • Low power consumption.<\/li>\n
  • 16-pin DIP package available.<\/li>\n
  • Compatible in function and pin configuration with the traditional 54\/74LS148 family.<\/li>\n<\/ul>\n

    Technical Specifications<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
    Specification<\/th>\nDetails<\/th>\n<\/tr>\n<\/thead>\n
    IC<\/td>\n74HC148 \/ 74148<\/td>\n<\/tr>\n
    Function<\/td>\n8-to-3 Priority Encoder<\/td>\n<\/tr>\n
    Number of Inputs<\/td>\n8<\/td>\n<\/tr>\n
    Binary Outputs<\/td>\n3<\/td>\n<\/tr>\n
    Logic Family<\/td>\n74HC<\/td>\n<\/tr>\n
    Supply Voltage<\/td>\n2V to 6V<\/td>\n<\/tr>\n
    Typical Operating Voltage<\/td>\n5V<\/td>\n<\/tr>\n
    Package<\/td>\nDIP-16<\/td>\n<\/tr>\n
    Input Logic<\/td>\nActive Low<\/td>\n<\/tr>\n
    Output Logic<\/td>\nActive Low<\/td>\n<\/tr>\n
    Enable<\/td>\nYes<\/td>\n<\/tr>\n
    Cascading<\/td>\nSupported<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Applications<\/h2>\n
      \n
    • Digital logic circuits.<\/li>\n
    • Priority encoding.<\/li>\n
    • Keypad and button input encoding.<\/li>\n
    • Digital control systems.<\/li>\n
    • Data encoding.<\/li>\n
    • Code converters.<\/li>\n
    • Microcontroller input expansion.<\/li>\n
    • Computer and embedded logic circuits.<\/li>\n
    • Educational electronics projects.<\/li>\n
    • Cascaded encoder systems.<\/li>\n<\/ul>\n

      How It Works<\/h2>\n

      The IC monitors its eight active-low input lines<\/strong> and produces a corresponding 3-bit binary output<\/strong>. If more than one input is active simultaneously, the encoder gives priority to the input with the highest priority and ignores the lower-priority inputs.<\/p>\n

      The Enable Input (EI)<\/strong> and Enable Output (EO)<\/strong> allow multiple 74HC148 ICs to be cascaded to create larger priority encoder systems without requiring additional external logic.<\/p>\n

      Important Note<\/h2>\n

      The 74HC148<\/strong> and the older 74148 \/ 74LS148<\/strong> are functionally related but belong to different logic families. The 74HC version uses CMOS technology and supports a 2V\u20136V supply range<\/strong>, while the traditional 74LS148 is designed around 5V TTL operation. Always verify the exact IC marking and electrical specifications before replacing one with another.<\/p>\n","protected":false},"excerpt":{"rendered":"

      74HC148 \/ 74148 \u2013 8-to-3 Priority Encoder IC Product Description The 74HC148 \/ 74148 is an 8-to-3 priority encoder IC designed to convert one of eight input signals into a 3-bit binary output. It includes priority logic, meaning that when multiple inputs are active at the same time, the input with the highest priority is […]\n","protected":false},"featured_media":35208,"template":"","meta":[],"product_cat":[542,210],"product_tag":[],"_links":{"self":[{"href":"https:\/\/qariya.net\/en\/wp-json\/wp\/v2\/product\/35207"}],"collection":[{"href":"https:\/\/qariya.net\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/qariya.net\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/qariya.net\/en\/wp-json\/wp\/v2\/media\/35208"}],"wp:attachment":[{"href":"https:\/\/qariya.net\/en\/wp-json\/wp\/v2\/media?parent=35207"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/qariya.net\/en\/wp-json\/wp\/v2\/product_cat?post=35207"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/qariya.net\/en\/wp-json\/wp\/v2\/product_tag?post=35207"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}