CD74HC390M96

Product Overview

• Category: Integrated Circuit
• Use: Digital Counter/Divider
• Characteristics: High-Speed, CMOS Logic, Dual 4-Bit Decade Counter
• Package: SOIC-16
• Essence: The CD74HC390M96 is a high-speed CMOS logic integrated circuit that functions as a dual 4-bit decade counter. It is commonly used in digital electronics applications for counting and dividing signals.
• Packaging/Quantity: The CD74HC390M96 is available in a standard SOIC-16 package and is typically sold in reels or tubes containing multiple units.

Specifications

• Supply Voltage: 2V to 6V
• Logic Family: HC
• Number of Stages: 2 (Dual)
• Maximum Clock Frequency: 50MHz
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay: 13ns (Typical)
• Output Current: ±5.2mA

Pin Configuration

The CD74HC390M96 has a total of 16 pins arranged as follows:

+---+--+---+ Q0A |1 +--+ 16| VCC Q1A |2 15| Q3B Q2A |3 14| Q2B Q3A |4 13| Q1B GND |5 CD74HC390M96 12| Q0B CP |6 11| MR MR1 |7 10| CPD MR2 |8 9| Q0B +----------+

Functional Features

• Dual 4-bit decade counter with separate clock inputs (CP and CPD) for each counter.
• Asynchronous master reset (MR) input to reset both counters.
• Outputs (Q0A-Q3A and Q0B-Q3B) provide the count values of the two counters.
• Can be cascaded to create larger counters or divide-by-n circuits.

Advantages

• High-speed operation allows for efficient counting and dividing of signals.
• CMOS logic provides low power consumption and wide operating voltage range.
• Separate clock inputs for each counter allow for independent control.
• Asynchronous master reset enables easy initialization of the counters.

Disadvantages

• Limited maximum clock frequency compared to some other counter ICs.
• Requires external components for more complex applications.
• Not suitable for high-frequency or precision timing applications.

Working Principles

The CD74HC390M96 operates based on the principles of digital counting and dividing. The two 4-bit decade counters increment their respective count values based on the rising edge of the clock inputs (CP and CPD). The outputs (Q0A-Q3A and Q0B-Q3B) represent the current count values of the counters. The asynchronous master reset (MR) input can be used to reset both counters to zero.

Detailed Application Field Plans

The CD74HC390M96 is commonly used in various digital electronics applications, including:

1. Frequency Division: The dual counters can be used to divide an input signal by a specific factor, allowing for frequency reduction or synchronization with other circuits.
2. Time Delay Generation: By utilizing the count values of the counters, precise time delays can be generated for controlling events or synchronization purposes.
3. Event Counting: The CD74HC390M96 can be employed to count events or occurrences, such as pulses or triggers, providing valuable information for monitoring or control systems.
4. Digital Displays: The count values from the counters can be used to drive digital displays, such as 7-segment LED displays, for visual representation of numerical data.

Detailed and Complete Alternative Models

• CD74HC393M96: Dual 4-bit binary counter with similar characteristics and functionality.
• CD74HC191M96: Presettable synchronous 4-bit up/down counter with parallel load capability.
• CD74HC4020M96: 14-stage binary ripple counter with built-in oscillator and reset function.

These alternative models offer different features and capabilities while serving similar purposes in digital counting and dividing applications.

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