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File name:74ls290.pdf
[preview 74ls290]
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Model:74ls290 🔎
Original:74ls290 🔎
Descr: . Electronic Components Datasheets Various datasheets 74ls290.pdf
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74ls290.pdfSN54/74LS290 SN54/74LS293 DECADE COUNTER; 4-BIT BINARY COUNTER The SN54 / 74LS290 and SN54 / 74LS293 are high-speed 4-bit ripple type counters partitioned into two sections. Each counter has a divide-by-two sec- DECADE COUNTER; tion and either a divide-by-five (LS290) or divide-by-eight (LS293) section 4-BIT BINARY COUNTER which are triggered by a HIGH-to-LOW transition on the clock inputs. Each section can be used separately or tied together (Q to CP)to form BCD, LOW POWER SCHOTTKY Bi-quinary, or Modulo-16 counters. Both of the counters have a 2-input gated Master Reset (Clear), and the LS290 also has a 2-input gated Master Set (Preset 9).

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