CY74FCT191ATSOCTG4

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Counter/Divider
• Characteristics:
  • High-speed operation
  • Low power consumption
  • Wide operating voltage range
  • Schmitt-trigger inputs for noise immunity
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: The CY74FCT191ATSOCTG4 is a counter/divider IC that offers high-speed operation and low power consumption. It is commonly used in digital circuits where counting or dividing functions are required.
• Packaging/Quantity: Available in tape and reel packaging, with a quantity of 2500 units per reel.

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Maximum Clock Frequency: 100MHz
• Number of Stages: 4
• Output Type: Synchronous
• Input Type: Schmitt-trigger

Detailed Pin Configuration

The CY74FCT191ATSOCTG4 has a total of 16 pins, which are assigned as follows:

1. CLK (Clock Input)
2. MR (Master Reset Input)
3. CPD (Count Down Enable Input)
4. CUP (Count Up Enable Input)
5. Q0 (Output Stage 0)
6. Q1 (Output Stage 1)
7. Q2 (Output Stage 2)
8. Q3 (Output Stage 3)
9. GND (Ground)
10. VCC (Supply Voltage)
11. Q3S (Synchronous Output Stage 3)
12. Q2S (Synchronous Output Stage 2)
13. Q1S (Synchronous Output Stage 1)
14. Q0S (Synchronous Output Stage 0)
15. CET (Count Enable Input)
16. CEP (Count Enable Input)

Functional Features

• Synchronous operation: The CY74FCT191ATSOCTG4 operates synchronously with the clock input, ensuring accurate counting/dividing.
• Master reset: The MR input allows for resetting the counter to its initial state.
• Count up/down enable: The CUP and CPD inputs control the direction of counting.
• Schmitt-trigger inputs: The CY74FCT191ATSOCTG4 features Schmitt-trigger inputs, providing noise immunity and reliable operation in noisy environments.

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient counting/dividing in digital circuits. - Low power consumption helps in reducing overall power requirements. - Wide operating voltage range ensures compatibility with various systems. - Schmitt-trigger inputs provide noise immunity, enhancing reliability.

Disadvantages: - Limited number of stages (4) may not be sufficient for complex counting applications. - Lack of additional advanced features compared to more specialized counter/divider ICs.

Working Principles

The CY74FCT191ATSOCTG4 is a synchronous counter/divider IC that operates based on the clock input. When the clock signal transitions from low to high, the counter increments or decrements based on the count up/down enable inputs (CUP and CPD). The outputs represent the current count value, which can be used for various purposes in digital circuits.

Detailed Application Field Plans

The CY74FCT191ATSOCTG4 finds applications in various fields where counting or dividing functions are required. Some common application areas include: - Digital frequency dividers - Event counters - Timekeeping circuits - Industrial automation systems - Communication equipment

Detailed and Complete Alternative Models

• CD40193: 4-bit synchronous up/down counter IC
• SN74LS191: 4-bit synchronous binary counter IC
• CD4029: Presettable up/down counter IC

These alternative models offer similar functionality to the CY74FCT191ATSOCTG4 and can be considered as alternatives based on specific requirements.

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