CD74HC193E

Product Overview

• Category: Integrated Circuit
• Use: Counter/Divider
• Characteristics: High-speed, CMOS logic, synchronous operation
• Package: DIP (Dual In-line Package)
• Essence: 4-bit binary up/down counter with synchronous reset
• Packaging/Quantity: Available in tubes of 25 units or reels of 2,500 units

Specifications

• Supply Voltage: 2V to 6V
• Operating Temperature Range: -40°C to +85°C
• Logic Family: HC (High-Speed CMOS)
• Number of Pins: 16
• Clock Frequency: Up to 25 MHz
• Counting Modes: Up, Down, and Reset
• Output Type: TTL compatible

Detailed Pin Configuration

1. Clock (CLK)
2. Enable (ENP)
3. Parallel Load (PL)
4. Up/Down (U/D)
5. Carry Out (CO)
6. Data Inputs (D0-D3)
7. Synchronous Reset (MR)
8. Carry In (CI)
9. Outputs (Q0-Q3)
10. Ground (GND)
11. Outputs (Q0-Q3)
12. Carry In (CI)
13. Synchronous Reset (MR)
14. Data Inputs (D0-D3)
15. Carry Out (CO)
16. Up/Down (U/D)

Functional Features

• High-speed operation allows for efficient counting and dividing.
• CMOS logic ensures low power consumption and compatibility with various systems.
• Synchronous operation enables precise control and synchronization with other components.
• The parallel load feature allows for easy initialization of the counter's value.
• The synchronous reset function provides a quick way to reset the counter to its initial state.
• Up/Down mode allows for both incrementing and decrementing the counter value.
• Carry In and Carry Out pins facilitate cascading multiple counters.

Advantages

• High-speed operation enables efficient counting in time-critical applications.
• CMOS logic ensures low power consumption, making it suitable for battery-powered devices.
• Synchronous operation allows for precise control and synchronization with other components.
• The parallel load feature simplifies the initialization process.
• The synchronous reset function provides a quick and reliable way to reset the counter.
• Up/Down mode adds flexibility to the counter's functionality.
• Cascading multiple counters is easily achieved using the Carry In and Carry Out pins.

Disadvantages

• Limited number of bits (4-bit) may not be sufficient for certain applications requiring larger counters.
• Requires an external clock signal for proper operation.
• May not be compatible with all voltage levels, as it operates within the 2V to 6V range.

Working Principles

The CD74HC193E is a 4-bit binary up/down counter with synchronous reset. It counts up or down based on the input provided at the Up/Down pin. The counter advances on each rising edge of the clock signal when enabled. The parallel load feature allows the initial value to be loaded into the counter by activating the Parallel Load pin. The synchronous reset pin resets the counter to its initial state when activated. The Carry Out pin indicates when the counter reaches its maximum value and can be used for cascading multiple counters.

Detailed Application Field Plans

The CD74HC193E is commonly used in various applications that require counting or dividing functions. Some of the typical application fields include:

1. Digital frequency dividers
2. Timekeeping circuits
3. Industrial automation systems
4. Electronic gaming machines
5. Traffic light controllers
6. Event counters
7. Frequency synthesizers
8. Programmable logic controllers (PLCs)

Detailed and Complete Alternative Models

1. CD74HC191E: 4-bit synchronous up/down counter with parallel load
2. CD40193BE: CMOS presettable up/down counter
3. SN74LS193N: Synchronous 4-bit binary up/down counter
4. MC14093BCP: Quad 2-input NAND Schmitt trigger

These alternative models offer similar functionality to the CD74HC193E and can be considered as alternatives based on specific requirements.

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