Encyclopedia Entry: 74F109SJ

Product Overview

Category

The 74F109SJ belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in digital electronic systems for various applications, including data processing, signal transmission, and control functions.

Characteristics

• The 74F109SJ is a dual positive-edge-triggered D-type flip-flop.
• It operates on a wide voltage range, typically between 4.5V and 5.5V.
• This IC offers high-speed operation, making it suitable for time-critical applications.
• It has a compact design, allowing for efficient use of circuit board space.

Package

The 74F109SJ is available in a small outline package (SOP) with a pin count of 16.

Essence

The essence of the 74F109SJ lies in its ability to store and manipulate binary information within a digital system.

Packaging/Quantity

The 74F109SJ is typically sold in reels or tubes, containing multiple units per package. The exact quantity may vary depending on the supplier.

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Operating Temperature Range: -40°C to 85°C
• Input High Voltage (VIH): 2.0V (min)
• Input Low Voltage (VIL): 0.8V (max)
• Output High Voltage (VOH): 2.7V (min)
• Output Low Voltage (VOL): 0.5V (max)
• Maximum Clock Frequency: 100 MHz

Detailed Pin Configuration

The 74F109SJ has a total of 16 pins, each serving a specific function. Here is the detailed pin configuration:

1. Clear (CLR)
2. Data A (DA)
3. Clock (CLK)
4. Data B (DB)
5. Set (SET)
6. Output A (QA)
7. Output B (QB)
8. Ground (GND)
9. Output Enable (OE)
10. VCC
11. Output A Complement (QA')
12. Output B Complement (QB')
13. Preset Enable (PE)
14. Clock Enable (CE)
15. Data Select (DS)
16. Master Reset (MR)

Functional Features

The 74F109SJ offers the following functional features:

• Dual flip-flop design allows for independent storage and manipulation of two separate data inputs.
• Positive-edge-triggered operation ensures reliable data capture at the rising edge of the clock signal.
• Clear and preset enable inputs provide additional control over the flip-flop's state.
• Output enable input allows for tri-state output, facilitating bus sharing in multi-device systems.

Advantages and Disadvantages

Advantages

• High-speed operation enables efficient data processing in time-critical applications.
• Compact package design saves valuable circuit board space.
• Wide voltage range compatibility enhances versatility in various electronic systems.

Disadvantages

• Limited number of flip-flops per IC may restrict its use in complex designs requiring a higher count.

Working Principles

The 74F109SJ operates based on the principles of sequential logic. It utilizes positive-edge-triggered D-type flip-flops to store and propagate binary information. The clock signal controls the timing of data capture and output updates, ensuring synchronized operation within the digital system.

Detailed Application Field Plans

The 74F109SJ finds application in various fields, including but not limited to: - Microprocessor-based systems - Communication equipment - Industrial automation - Consumer electronics

Detailed and Complete Alternative Models

There are several alternative models available that offer similar functionality to the 74F109SJ. Some notable alternatives include: - 74LS109 - 74HC109 - CD4013

These alternative models can be considered based on specific project requirements, availability, and cost considerations.

In conclusion, the 74F109SJ is a versatile dual positive-edge-triggered D-type flip-flop IC. Its high-speed operation, compact design, and wide voltage range compatibility make it suitable for various digital electronic applications. However, its limited flip-flop count may restrict its use in complex designs.