SN74HC109NG4

Product Overview

• Category: Integrated Circuit
• Use: Flip-Flop
• Characteristics: Dual J-K Positive-Edge-Triggered Flip-Flop
• Package: DIP-16
• Essence: High-Speed CMOS Logic
• Packaging/Quantity: Tube/25 pieces

Specifications

• Supply Voltage Range: 2V to 6V
• High-Level Input Voltage: 2V
• Low-Level Input Voltage: 0.8V
• High-Level Output Voltage: 4.4V
• Low-Level Output Voltage: 0.5V
• Maximum Operating Frequency: 85 MHz
• Propagation Delay Time: 10 ns
• Set-Up Time: 7 ns
• Hold Time: 3 ns

Detailed Pin Configuration

1. CLR (Clear) - Active LOW clear input
2. CLK (Clock) - Clock input
3. J (Data) - J input for flip-flop
4. K (Data) - K input for flip-flop
5. GND (Ground) - Ground reference voltage
6. Q1 (Output) - First output of the flip-flop
7. Q1' (Complementary Output) - Complementary output of Q1
8. Q2 (Output) - Second output of the flip-flop
9. Q2' (Complementary Output) - Complementary output of Q2
10. PRE (Preset) - Active LOW preset input
11. PRD (Preset Disable) - Active HIGH preset disable input
12. VCC (Supply Voltage) - Positive supply voltage
13. NC (No Connection) - No connection
14. NC (No Connection) - No connection
15. NC (No Connection) - No connection
16. NC (No Connection) - No connection

Functional Features

• Dual J-K flip-flop with clear and preset capabilities
• Positive-edge-triggered operation
• High-speed CMOS logic for efficient performance
• Wide supply voltage range for versatility
• Low power consumption
• Schmitt-trigger inputs for noise immunity
• Complementary outputs for easy integration in digital systems

Advantages and Disadvantages

Advantages: - Dual flip-flop allows for more complex circuit designs - Clear and preset capabilities provide flexibility in controlling the flip-flop state - High-speed operation enables quick data processing - Wide supply voltage range accommodates various applications - Low power consumption reduces energy usage

Disadvantages: - Limited number of available pins for additional functionality - May require external components for specific applications - Sensitivity to noise due to high-speed operation

Working Principles

The SN74HC109NG4 is a dual J-K positive-edge-triggered flip-flop. It operates based on the J-K flip-flop concept, where the outputs change state based on the clock input and the values of the J and K inputs. The clear and preset inputs allow for additional control over the flip-flop's state.

When the clock input transitions from LOW to HIGH, the flip-flop captures the values of the J and K inputs. If the J and K inputs are both LOW, the flip-flop remains in its current state. If the J and K inputs are both HIGH, the flip-flop toggles its state. If only one of the J or K inputs is HIGH, the flip-flop sets or resets accordingly.

The clear input, when activated (LOW), forces the flip-flop outputs to a known state (usually LOW). The preset input, when activated (LOW), overrides the clock input and sets the flip-flop outputs to a known state (usually HIGH).

Detailed Application Field Plans

The SN74HC109NG4 is commonly used in various digital systems and applications, including:

1. Counters and frequency dividers
2. Shift registers
3. Data storage and retrieval systems
4. Control circuits
5. Memory address decoding
6. Clock synchronization circuits
7. State machines

Its dual flip-flop design and versatile functionality make it suitable for a wide range of applications that require sequential logic and data processing.

Detailed and Complete Alternative Models

1. SN74HC109N: Similar to SN74HC109NG4 but in a different package (PDIP-16)
2. CD4013B: Dual D-Type Flip-Flop with similar characteristics and functionality
3. MC14013B: Dual Type "D" Flip-Flop with complementary outputs

These alternative models provide similar functionality and can be used as replacements or alternatives to the SN74HC109NG4 depending on specific requirements and availability.

In conclusion, the SN74HC109NG4 is a high-speed CMOS logic dual J-K positive-edge-triggered flip-flop. It offers flexibility, efficiency, and versatility in various digital applications. Its characteristics