{"product_id":"74190-74ls190-dip-synchronous-up-down-decade-counter","title":"74190 74LS190 DIP Synchronous Up\/Down Decade Counter","description":"\u003cp\u003eThe 74LS190 is a high speed TTL integrated circuit that functions as a synchronous, reversible BCD decade counter. This device is designed to count in a Binary Coded Decimal sequence from 0 to 9 in both incrementing and decrementing modes. Because it is a synchronous counter, all flip-flops change state simultaneously on the low-to-high transition of the clock, provided the enable input is low. This synchronized operation eliminates the output glitches common in asynchronous ripple counters.\u003c\/p\u003e\n\u003cp\u003eThe counter features a dedicated Up\/Down control input to set the direction of the count and a parallel load facility for presetting the counter to any desired BCD starting value. It also includes \"Terminal Count\" and \"Ripple Clock\" outputs, which simplify the process of cascading multiple 74LS190 units for high-speed multi-decade counting. Its low power Schottky construction makes it ideal for digital clocks, timers, and industrial control systems requiring bidirectional counting.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSynchronous counting for high speed and stable timing\u003c\/li\u003e\n\u003cli\u003eReversible counting direction with Up\/Down control\u003c\/li\u003e\n\u003cli\u003eAsynchronous parallel load for presetting any BCD value\u003c\/li\u003e\n\u003cli\u003eCascadable for multi-decade counting without external gates\u003c\/li\u003e\n\u003cli\u003eNo asynchronous master reset (Clear) for specific logic requirements\u003c\/li\u003e\n\u003cli\u003eStandard 16 pin dual in line package\u003c\/li\u003e\n\u003cli\u003eSupply Voltage 4.75V to 5.25V\u003c\/li\u003e\n\u003cli\u003eOperating Temperature 0 to 70 Celsius\u003c\/li\u003e\n\u003cli\u003eLogic Type TTL Low Power Schottky\u003c\/li\u003e\n\u003cli\u003eMaximum Clock Frequency 20MHz\u003c\/li\u003e\n\u003cli\u003eTypical Power Dissipation 100mW\u003c\/li\u003e\n\u003cli\u003eHigh Level Output Current -0.4mA\u003c\/li\u003e\n\u003cli\u003eLow Level Output Current 8mA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eInterface:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCP Clock input positive edge triggered\u003c\/li\u003e\n\u003cli\u003eU\/D Up-down count control input\u003c\/li\u003e\n\u003cli\u003eCE BAR Count enable input active low\u003c\/li\u003e\n\u003cli\u003eLOAD Parallel load input active low\u003c\/li\u003e\n\u003cli\u003eA B C D Parallel data inputs\u003c\/li\u003e\n\u003cli\u003eQA QB QC QD BCD counter outputs\u003c\/li\u003e\n\u003cli\u003eTC Terminal count output\u003c\/li\u003e\n\u003cli\u003eRC BAR Ripple clock output active low\u003c\/li\u003e\n\u003cli\u003eVCC Positive supply voltage\u003c\/li\u003e\n\u003cli\u003eGND Ground reference\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"INDIAN HOBBY CENTER","offers":[{"title":"Default Title","offer_id":44139958763563,"sku":null,"price":49.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/6796\/1387\/files\/SUNELTkwLmpwZw.jpg?v=1780143299","url":"https:\/\/www.indianhobbycenter.com\/products\/74190-74ls190-dip-synchronous-up-down-decade-counter","provider":"Indian Hobby Center","version":"1.0","type":"link"}