CD74HC109ME4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Logic
• Characteristics: Dual J-K Flip-Flop with Clear and Preset, High-Speed CMOS Logic
• Package: SOIC-16
• Essence: Flip-flop circuitry for storing and manipulating digital data
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2V to 6V
• High-Level Input Voltage: 2V
• Low-Level Input Voltage: 0.8V
• High-Level Output Current: -5.2mA
• Low-Level Output Current: 5.2mA
• Maximum Operating Frequency: 74MHz
• Propagation Delay Time: 9ns
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. CLR (Clear) - Active LOW input for clearing the flip-flop
2. PR (Preset) - Active LOW input for presetting the flip-flop
3. CP (Clock Pulse) - Clock input for synchronizing the flip-flop
4. D (Data) - Data input for setting the flip-flop state
5. Q1 (Output 1) - Output of the first flip-flop
6. Q1̅ (Complementary Output 1) - Complementary output of the first flip-flop
7. GND (Ground) - Ground reference for the IC
8. Q2 (Output 2) - Output of the second flip-flop
9. Q2̅ (Complementary Output 2) - Complementary output of the second flip-flop
10. VCC (Supply Voltage) - Positive supply voltage for the IC
11. NC (No Connection) - No internal connection, can be left unconnected
12. NC (No Connection) - No internal connection, can be left unconnected
13. J1 (J-K Input 1) - J-K input for the first flip-flop
14. K1 (J-K Input 1) - J-K input for the first flip-flop
15. J2 (J-K Input 2) - J-K input for the second flip-flop
16. K2 (J-K Input 2) - J-K input for the second flip-flop

Functional Features

• Dual J-K Flip-Flop: Contains two independent J-K flip-flops in a single IC package.
• Clear and Preset Inputs: Allows for clearing or presetting the flip-flop to a specific state.
• High-Speed CMOS Logic: Operates at high frequencies with low power consumption.
• Wide Supply Voltage Range: Can be powered by a range of 2V to 6V, providing flexibility in different applications.

Advantages and Disadvantages

Advantages: - Compact Design: Integration of two flip-flops in a single package saves board space. - Versatile Functionality: Clear and preset inputs enhance the flexibility of the flip-flop. - High-Speed Operation: Suitable for applications requiring fast data storage and manipulation.

Disadvantages: - Limited Output Current: The maximum output current is relatively low, which may restrict certain applications. - Temperature Sensitivity: Performance may vary under extreme temperature conditions.

Working Principles

The CD74HC109ME4 is based on J-K flip-flop circuitry. It stores and manipulates digital data using clocked inputs and outputs. The flip-flop can be cleared or preset to a specific state using the clear and preset inputs. The clock pulse synchronizes the flip-flop, allowing data to be stored or transferred based on the input signals. The complementary outputs provide inverted versions of the main outputs, enhancing flexibility in circuit design.

Detailed Application Field Plans

The CD74HC109ME4 is widely used in various digital logic applications, including but not limited to: - Counters and Registers: Used for storing and manipulating binary data in sequential circuits. - Data Storage Systems: Enables efficient data storage and retrieval in memory systems. - Control Systems: Provides flip-flop functionality for controlling and sequencing operations. - Communication Systems: Facilitates data transmission and reception in digital communication protocols.

Detailed and Complete Alternative Models

1. SN74HC109N: Similar dual J-K flip-flop IC with clear and preset inputs, available in DIP-16 package.
2. MC74HC109: Dual J-K flip-flop IC with clear and preset inputs, available in SOIC-16 package.
3. CD4013BE: Dual D-type flip-flop IC with clear input, available in DIP-14 package.
4. 74LS73: Dual negative-edge-triggered J-K flip-flop IC, available in DIP-14 package.

These alternative models offer similar functionality and can be