ON MM74C90N

Счетчик, декада13 В ~ 15 В

Overview

The MM74C90N is a CMOS 4-bit decade counter/divider. This counter has the capability to either reset to zero or be preset to nine when the correct logic levels are applied to the R01, R02, R91, and R92 inputs. Additionally, an independent flip-flop on the A-bit allows users to utilize it as a frequency counter divided by 2, 5, or 10. It counts binary states and provides outputs for various counting stages. For more details about this decade counter pinout, circuit diagram, etc can check the MM74C90N datasheet.

Cascadable for larger counting systems

Features

Applications

• Digital multiplexing and demultiplexing
• Signal gating
• Frequency dividing circuits
• Time delay circuits
• Communications Digital Frequency Synthesizers;
• VHF, UHF, FM, AM, etc.
• Fixed or Programmable Frequency Division
• Time Out Timer for Consumer-Application Industrial Controls
• Timing applications
• Clocks