Encyclopedia Entry: 74ACT109PC

Product Information Overview

• Category: Integrated Circuit (IC)
• Use: Digital Logic Device
• Characteristics: Dual JK Positive Edge-Triggered Flip-Flop
• Package: Plastic DIP (Dual In-Line Package)
• Essence: High-speed, low-power consumption flip-flop
• Packaging/Quantity: Available in tubes or reels, quantity varies based on supplier

Specifications

The 74ACT109PC is a dual JK positive edge-triggered flip-flop integrated circuit. It operates on a supply voltage range of 4.5V to 5.5V and is compatible with TTL logic levels. The device features a high-speed operation with a propagation delay of only 6ns, making it suitable for applications requiring fast switching times. It also has a low power consumption, making it energy-efficient.

Detailed Pin Configuration

The 74ACT109PC has a total of 16 pins, which are arranged as follows:

+---+--+---+ Q1A |1 +--+ 16| VCC Q1B |2 15| Q2B CP |3 14| Q2A MR1 |4 13| GND PR1 |5 12| PR2 CLR |6 11| MR2 CLK |7 10| K J1A |8 9| J1B +-----------+

Functional Features

The 74ACT109PC is designed to function as a dual JK positive edge-triggered flip-flop. It can store one bit of data per flip-flop, allowing for the storage and manipulation of binary information. The device is triggered by a positive edge transition of the clock signal, which causes the flip-flop to latch the data present at its inputs. It also features asynchronous clear (CLR) and preset (PR) inputs, which allow for the initialization of the flip-flop's state.

Advantages and Disadvantages

Advantages: - High-speed operation with low propagation delay - Low power consumption - Compatible with TTL logic levels - Dual flip-flop configuration allows for storage of multiple bits of data

Disadvantages: - Limited voltage supply range (4.5V to 5.5V) - Requires external clock signal for operation

Working Principles

The 74ACT109PC operates based on the principles of digital logic. When a positive edge transition is detected on the clock input (CLK), the flip-flop latches the data present at its J and K inputs. The output state is determined by the combination of the current input values and the previous state of the flip-flop. The asynchronous clear (CLR) and preset (PR) inputs can be used to force the flip-flop into a specific state, regardless of the clock input.

Detailed Application Field Plans

The 74ACT109PC can be used in various applications that require the storage and manipulation of binary information. Some potential application fields include:

1. Digital Counters: The dual flip-flop configuration of the 74ACT109PC makes it suitable for use in digital counters, where it can store and manipulate the count value.

2. State Machines: The device can be utilized in the design of state machines, where it can store and update the current state of the system based on input conditions.

3. Data Storage: The flip-flop can be employed in memory circuits to store data temporarily or as part of a larger memory system.

Detailed and Complete Alternative Models

Some alternative models to the 74ACT109PC that serve similar functions include:

1. 74ACT74: Dual D Flip-Flop
2. 74ACT273: Octal D-Type Flip-Flop
3. 74ACT574: Octal D-Type Flip-Flop with 3-State Outputs

These alternative models offer different features and pin configurations, allowing for flexibility in choosing the most suitable device for specific applications.

In conclusion, the 74ACT109PC is a dual JK positive edge-triggered flip-flop integrated circuit. It offers high-speed operation, low power consumption, and compatibility with TTL logic levels. Its functional features, advantages, and disadvantages make it suitable for various applications in digital logic systems.