Intersil CD74HCT390E

计数器，十进制24.5 V ~ 5.5 V

Overview

The CD74HCT390E is a high-speed CMOS dual 4-bit decade ripple counter, clocked on the falling edge with an asynchronous reset, and each counter is segmented into two parts: a divide-by-2 and a divide-by-5 counter. Both sections have distinct clock input, offering a highly adaptable device configuration. It comprises two separate 4-bit counters from 0 to 9 in a decade sequence. Each counter has an individual clock and reset inputs.

Digital counting and control applications

Features

74HCT Series
Embedded in the 16-DIP (0.300, 7.62mm) package
4 bits per element
Operating supply voltage of 5V
Frequency of 27MHz

Through Hole Mounting Type

Applications

There are a lot of Texas Instruments
CD74HCT390E Counters & Dividers applications.

• 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
• Up Counters
• Dual Up Counters
• MULTIPLICATION
• DIVISION