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MM74C90 - 4-Bit Decade Counter 4-Bit Binary Counter

Description

The MM74C90 decade counter and the MM74C93 binary counter and complementary MOS (CMOS) integrated circuits constructed with N- and P-channel enhancement mode transistors.

Features

  • s Wide supply voltage range: s Guaranteed noise margin: s High noise immunity: s Low power compatibility: Fan out of 2 TTL driving 74L s The MM74C93 follows the MM74L93 Pinout 3V to 15V 1V 0.45 VCC (typ. ) Ordering Code: Order Number MM74C90N MM74C93N Package Number N14A N14A Package.

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Full PDF Text Transcription

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MM74C90 • MM74C93 4-Bit Decade Counter • 4-Bit Binary Counter October 1987 Revised January 1999 MM74C90 • MM74C93 4-Bit Decade Counter • 4-Bit Binary Counter General Description The MM74C90 decade counter and the MM74C93 binary counter and complementary MOS (CMOS) integrated circuits constructed with N- and P-channel enhancement mode transistors. The 4-bit decade counter can reset to zero or preset to nine by applying appropriate logic level on the R01, R02, R91 and R92 inputs. Also, a separate flip-flop on the A-bit enables the user to operate it as a divide-by-2, 5 or 10 frequency counter.
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