{"product_id":"hlf-74ls191-presettable-synchronous-4-bit-binary-up-down-counter-dip16-high-speed-ttl-logic-4-75v-5-25v-0-c-to-70-c-through-hole-package","title":"HLF 74LS191 Presettable Synchronous 4-Bit Binary Up\/Down Counter – DIP16 | High-Speed TTL Logic | 4.75V–5.25V, 0°C to +70°C | Through-Hole Package","description":"\u003cp data-start=\"1898\" data-end=\"2218\"\u003eThe \u003cstrong data-start=\"1921\" data-end=\"1936\"\u003eHLF 74LS191\u003c\/strong\u003e is a \u003cstrong data-start=\"1942\" data-end=\"2014\"\u003eLow-Power Schottky TTL presettable synchronous 4-bit up\/down counter\u003c\/strong\u003e with \u003cstrong data-start=\"2020\" data-end=\"2048\"\u003eparallel load capability\u003c\/strong\u003e and \u003cstrong data-start=\"2053\" data-end=\"2093\"\u003esynchronous up\/down counting control\u003c\/strong\u003e. It is ideal for \u003cstrong data-start=\"2111\" data-end=\"2178\"\u003efrequency division, sequential logic, and counting applications\u003c\/strong\u003e where fast TTL operation is required.\u003c\/p\u003e\n\u003cp data-start=\"2220\" data-end=\"2429\"\u003eThe \u003cstrong data-start=\"2224\" data-end=\"2241\"\u003eDIP16 package\u003c\/strong\u003e provides \u003cstrong data-start=\"2251\" data-end=\"2277\"\u003ehigh-speed performance\u003c\/strong\u003e, \u003cstrong data-start=\"2279\" data-end=\"2304\"\u003elow power dissipation\u003c\/strong\u003e, and \u003cstrong data-start=\"2310\" data-end=\"2338\"\u003eexcellent noise immunity\u003c\/strong\u003e, making it suitable for \u003cstrong data-start=\"2363\" data-end=\"2426\"\u003eindustrial, embedded, and educational digital logic systems\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"2431\" data-end=\"2450\"\u003e\u003cstrong data-start=\"2431\" data-end=\"2448\"\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"2451\" data-end=\"2897\"\u003e\n\u003cli data-start=\"2451\" data-end=\"2521\"\u003e\n\u003cp data-start=\"2453\" data-end=\"2521\"\u003e\u003cstrong data-start=\"2453\" data-end=\"2466\"\u003eFunction:\u003c\/strong\u003e Presettable Synchronous 4-Bit Binary Up\/Down Counter\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2522\" data-end=\"2576\"\u003e\n\u003cp data-start=\"2524\" data-end=\"2576\"\u003e\u003cstrong data-start=\"2524\" data-end=\"2539\"\u003eTechnology:\u003c\/strong\u003e Low-Power Schottky TTL (LS Series)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2577\" data-end=\"2617\"\u003e\n\u003cp data-start=\"2579\" data-end=\"2617\"\u003e\u003cstrong data-start=\"2579\" data-end=\"2601\"\u003eOperating Voltage:\u003c\/strong\u003e 4.75V – 5.25V\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2618\" data-end=\"2661\"\u003e\n\u003cp data-start=\"2620\" data-end=\"2661\"\u003e\u003cstrong data-start=\"2620\" data-end=\"2646\"\u003eOperating Temperature:\u003c\/strong\u003e 0°C to +70°C\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2662\" data-end=\"2712\"\u003e\n\u003cp data-start=\"2664\" data-end=\"2712\"\u003e\u003cstrong data-start=\"2664\" data-end=\"2681\"\u003ePackage Type:\u003c\/strong\u003e DIP16 (Dual In-Line Package)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2713\" data-end=\"2748\"\u003e\n\u003cp data-start=\"2715\" data-end=\"2748\"\u003e\u003cstrong data-start=\"2715\" data-end=\"2733\"\u003eMounting Type:\u003c\/strong\u003e Through-Hole\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2749\" data-end=\"2785\"\u003e\n\u003cp data-start=\"2751\" data-end=\"2785\"\u003e\u003cstrong data-start=\"2751\" data-end=\"2783\"\u003eSynchronous Up\/Down Counting\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2786\" data-end=\"2825\"\u003e\n\u003cp data-start=\"2788\" data-end=\"2825\"\u003e\u003cstrong data-start=\"2788\" data-end=\"2823\"\u003eParallel Load for Preset Values\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2826\" data-end=\"2858\"\u003e\n\u003cp data-start=\"2828\" data-end=\"2858\"\u003e\u003cstrong data-start=\"2828\" data-end=\"2856\"\u003eHigh-Speed TTL Switching\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2859\" data-end=\"2897\"\u003e\n\u003cp data-start=\"2861\" data-end=\"2897\"\u003e\u003cstrong data-start=\"2861\" data-end=\"2895\"\u003eCascadable for Larger Counters\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2899\" data-end=\"2918\"\u003e\u003cstrong data-start=\"2899\" data-end=\"2916\"\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"2919\" data-end=\"3110\"\u003e\n\u003cli data-start=\"2919\" data-end=\"2949\"\u003e\n\u003cp data-start=\"2921\" data-end=\"2949\"\u003eFrequency Divider Circuits\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2950\" data-end=\"2983\"\u003e\n\u003cp data-start=\"2952\" data-end=\"2983\"\u003eDigital Timers and Sequencers\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2984\" data-end=\"3020\"\u003e\n\u003cp data-start=\"2986\" data-end=\"3020\"\u003eEvent Counting and Control Logic\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3021\" data-end=\"3064\"\u003e\n\u003cp data-start=\"3023\" data-end=\"3064\"\u003eMicroprocessor and Peripheral Interface\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3065\" data-end=\"3110\"\u003e\n\u003cp data-start=\"3067\" data-end=\"3110\"\u003eEducational and Prototype Digital Designs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HLF","offers":[{"title":"Default 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