поискавой системы для электроныых деталей |
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54LS160ALMQB датащи(PDF) 4 Page - National Semiconductor (TI) |
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54LS160ALMQB датащи(HTML) 4 Page - National Semiconductor (TI) |
4 / 8 page Functional Description (Continued) The Terminal Count (TC) output is HIGH when CET is HIGH and the counter is in its maximum count state (9 for the decade counters 15 for the binary counters) To implement synchronous multistage counters the TC outputs can be used with the CEP and CET inputs in two different ways These two schemes are shown in the 9310 data sheet The TC output is subject to decoding spikes due to internal race conditions and is therefore not recommended for use as a clock or asynchronous reset for flip-flops counters or regis- ters In the decade counters of the ’LS160 ’LS162 the TC output is fully decoded and can only be HIGH in state 9 LOGIC EQUATIONS Count Enable e CEP CET PE TC e Q0 Q1 Q2 Q3 CET Mode Select Table SR PE CET CEP Action on the Rising Clock Edge ( L ) L X X X RESET (Clear) H L X X LOAD (Pn xQn) H H H H COUNT (Increment) H H L X NO CHANGE (Hold) H H X L NO CHANGE (Hold) For the ’LS162 H e HIGH Voltage Level L e LOW Voltage Level X e Immaterial State Diagrams ’LS160 ’LS162 TLF10177 – 5 4 |
Аналогичный номер детали - 54LS160ALMQB |
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Аналогичное описание - 54LS160ALMQB |
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