Encyclopedia Entry: 74AC109PC

Product Overview

Category

The 74AC109PC belongs to the category of integrated circuits (ICs) and specifically falls under the family of flip-flops.

Use

This product is primarily used for storing and manipulating digital data in electronic systems. It serves as a dual positive-edge-triggered JK flip-flop with clear functionality.

Characteristics

• Dual flip-flop package
• Positive-edge-triggered operation
• Clear functionality for resetting the flip-flop
• High-speed performance
• Low power consumption

Package and Quantity

The 74AC109PC is available in a standard 16-pin DIP (Dual Inline Package) format. It is typically sold in packs of 10 units.

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: 0.4V
• Maximum Operating Frequency: 125 MHz
• Propagation Delay Time: 5 ns

Pin Configuration

The pin configuration of the 74AC109PC is as follows:

+---+--+---+ CLR --|1 +--+ 16|-- VCC J --|2 15|-- CLK K --|3 14|-- Q1 GND --|4 13|-- Q1' Q1' --|5 12|-- Q2' Q2 --|6 11|-- Q2 PRESET --|7 10|-- K' CLK --|8 9|-- J' +----------+

Functional Features

The 74AC109PC offers the following functional features:

• Dual flip-flop operation for storing two separate data bits
• Positive-edge-triggered functionality ensures reliable data capture
• Clear input allows for resetting the flip-flop to a known state
• High-speed performance enables efficient data processing
• Low power consumption makes it suitable for battery-powered devices

Advantages and Disadvantages

Advantages

• Reliable and accurate data storage
• High-speed operation for time-critical applications
• Low power consumption for energy-efficient designs
• Compact package size for space-constrained systems

Disadvantages

• Limited number of flip-flops in a single package
• Requires external components for complete system implementation
• Sensitivity to noise and voltage fluctuations

Working Principles

The 74AC109PC operates based on the principles of positive-edge-triggered JK flip-flops. It stores digital data using two inputs, J (data input) and K (complement data input). The flip-flop is triggered by a rising edge on the CLK (clock) input, capturing the data present at the J and K inputs. The Q and Q' outputs represent the stored data and its complement, respectively. The CLR (clear) input resets the flip-flop to a known state when activated.

Application Field Plans

The 74AC109PC finds application in various electronic systems, including but not limited to: - Digital counters and registers - Data storage and retrieval systems - Microcontrollers and microprocessors - Communication devices - Control systems

Alternative Models

Several alternative models with similar functionality are available in the market. Some notable alternatives to the 74AC109PC include: - SN74LS109AN - CD4013BE - MC14013BCL

These alternatives offer comparable features and can be used as substitutes depending on specific design requirements.

In conclusion, the 74AC109PC is a dual positive-edge-triggered JK flip-flop integrated circuit. It offers reliable data storage, high-speed operation, and low power consumption. With its compact package and versatile applications, it serves as a fundamental building block in various electronic systems.

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