MM74HC393M

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital counter
• Characteristics: High-speed operation, low power consumption
• Package: 14-pin DIP (Dual In-line Package)
• Essence: Dual 4-bit binary ripple counter
• Packaging/Quantity: Available in reels of 2,500 units

Specifications

• Supply Voltage: 2V to 6V
• Operating Temperature: -40°C to +85°C
• Propagation Delay: 13 ns (typical)
• Maximum Clock Frequency: 25 MHz

Pin Configuration

The MM74HC393M has a total of 14 pins. The pin configuration is as follows:

1. Clock Input A (Pin 1)
2. Clock Input B (Pin 2)
3. Reset Input (Pin 3)
4. Output QA (Pin 4)
5. Output QB (Pin 5)
6. Output QC (Pin 6)
7. Output QD (Pin 7)
8. Ground (Pin 8)
9. Output QD (Pin 9)
10. Output QC (Pin 10)
11. Output QB (Pin 11)
12. Output QA (Pin 12)
13. Reset Input (Pin 13)
14. Clock Enable Input (Pin 14)

Functional Features

• Dual 4-bit binary ripple counter
• Asynchronous reset and clock enable inputs
• Outputs can be used as divide-by-n counters
• High-speed operation allows for efficient counting
• Low power consumption makes it suitable for battery-powered devices

Advantages and Disadvantages

Advantages

• High-speed operation enables quick counting
• Low power consumption prolongs battery life
• Versatile outputs allow for various applications
• Asynchronous reset and clock enable inputs provide flexibility

Disadvantages

• Limited to 4-bit counting, may not be suitable for larger applications
• Requires external components for more complex functions

Working Principles

The MM74HC393M is a dual 4-bit binary ripple counter that counts up or down depending on the clock input. It utilizes flip-flops to store and propagate the count. The asynchronous reset input allows for immediate resetting of the counter, while the clock enable input controls the counting operation.

Detailed Application Field Plans

The MM74HC393M can be used in various applications, including:

1. Frequency division: The outputs QA-QD can be used as divide-by-n counters to generate lower frequencies from an input clock signal.
2. Event sequencing: The counter can be used to sequence events in a specific order.
3. Digital displays: The MM74HC393M can be used to drive digital displays by counting and decoding the appropriate segments.

Detailed and Complete Alternative Models

1. CD40193: 4-bit synchronous up/down binary counter
2. SN74LS393: Dual 4-bit binary ripple counter
3. CD74HC393: High-speed CMOS logic dual 4-stage binary ripple counter

These alternative models offer similar functionality and can be considered as alternatives to the MM74HC393M.

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