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File name: | 74ls290.pdf [preview 74ls290] |
Size: | 74 kB |
Extension: | pdf |
MD5: | facb9db5bc6cead9e33a604ff10b057d |
Mfg: | datasheets |
Model: | 74ls290 🔎 |
Original: | 74ls290 🔎 |
Descr: | . Electronic Components Datasheets Various datasheets 74ls290.pdf |
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Uploaded: | 24-06-2020 |
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File name | | Text |
74ls290.pdf | | SN54/74LS290
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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