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MM74C90 - 4-Bit Decade Counter

Download the MM74C90 datasheet PDF. This datasheet also covers the MM74C93 variant, as both devices belong to the same 4-bit decade counter family and are provided as variant models within a single manufacturer datasheet.

General Description

The MM54C90 MM74C90 decade counter and the MM54C93 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 R9

Key Features

  • Y Wide supply voltage range Y Guaranteed noise margin.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (MM74C93_NationalSemiconductor.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
MM74C90 4-Bit Decade Counter 4-Bit Binary Counter Fairchild
MM74C901 Hex Inverting TTL Buffer Fairchild
MM74C901 Hex Inverting TTL / Non-Inverting TTL / Inverting CMOS / Non-Inverting CMOS Buffer National
MM74C902 Hex Non-Inverting TTL Buffer Fairchild Semiconductor
MM74C902 Hex Inverting TTL / Non-Inverting TTL / Inverting CMOS / Non-Inverting CMOS Buffer National

Other Datasheets by National Semiconductor (now Texas Instruments)

Part Number Description
MM74C905 12-Bit Successive Approximation Register
MM74C908 Dual CMOS 30V Relay Driver
MM74C910 256 Bit Tri-state Random Access Read/write Memory
MM74C914 Hex Schmitt Trigger
MM74C915 7-Segment-to-BCD Converter

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
MM54C90 MM74C90 4-Bit Decade Counter MM54C93 MM74C93 4-Bit Binary Counter February 1988 MM54C90 MM74C90 4-Bit Decade Counter MM54C93 MM74C93 4-Bit Binary Counter General Description The MM54C90 MM74C90 decade counter and the MM54C93 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 The 4-bit binary counter can be reset to zero by applying high logic level on inputs R01 and R02 and a separate flip-flop on the A-bit enables the user to operate it as a divide-by-2 -8