CY74FCT191CTSOC

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Counter
• Characteristics: High-speed, synchronous, up/down counter
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Digital logic circuit for counting and controlling signals
• Packaging/Quantity: Typically sold in reels or tubes containing multiple units

Specifications

• Supply Voltage: 4.5V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Maximum Clock Frequency: 100MHz
• Number of Counting Stages: 4
• Counting Direction: Up or Down
• Synchronous Inputs: Clock, Enable, Load, and Reset
• Output: Binary Coded Decimal (BCD) representation of the count value

Detailed Pin Configuration

1. VCC - Power supply voltage
2. GND - Ground reference
3. CP - Clock input for counting
4. CE - Enable input for counting
5. LD - Load input for presetting the counter
6. UD - Up/Down control input
7. MR - Master Reset input
8. QA-QD - BCD output pins for displaying the count value

Functional Features

• High-speed operation allows for efficient counting in time-critical applications.
• Synchronous inputs ensure accurate and synchronized counting.
• Up/Down control enables flexible counting in both increasing and decreasing directions.
• Load input facilitates presetting the counter with a specific value.
• Master Reset input resets the counter to its initial state.
• BCD output pins provide a binary representation of the count value.

Advantages

• Fast counting capability makes it suitable for real-time applications.
• Synchronous operation ensures reliable and accurate counting.
• Flexible counting direction allows for versatile functionality.
• Load input enables easy initialization of the counter.
• Small package size (SOIC) allows for space-efficient integration.

Disadvantages

• Limited number of counting stages may restrict the range of values that can be counted.
• Requires an external clock source for operation.
• Not suitable for applications requiring very high counting frequencies.

Working Principles

The CY74FCT191CTSOC is a synchronous up/down counter that operates based on the input clock signal. When enabled, it counts up or down depending on the state of the Up/Down control input. The count value is stored in the internal registers and can be displayed through the BCD output pins. The counter can be preset to a specific value using the Load input, and it can be reset to its initial state using the Master Reset input.

Detailed Application Field Plans

The CY74FCT191CTSOC can be used in various applications that require counting and controlling signals. Some potential application fields include: 1. Industrial automation: Counting production units, monitoring machine cycles, and controlling process sequences. 2. Digital communication systems: Tracking data packets, measuring transmission rates, and synchronizing network protocols. 3. Automotive electronics: Monitoring vehicle speed, calculating engine RPM, and controlling gear shifting. 4. Test and measurement equipment: Measuring time intervals, frequency analysis, and event counting. 5. Consumer electronics: Implementing timers, creating digital clocks, and designing game scoreboards.

Detailed and Complete Alternative Models

1. SN74LS191: Similar synchronous up/down counter with 4-bit counting stages.
2. CD40193: Synchronous up/down counter with 4-bit counting stages and additional features like ripple carry output.
3. MC14519B: Programmable up/down counter with 4-bit counting stages and versatile control options.

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