Encyclopedia Entry: 74AC273SJX

Product Overview

Category

The 74AC273SJX belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in digital electronic systems for storing and manipulating binary data.

Characteristics

• The 74AC273SJX is a flip-flop device with eight D-type positive-edge-triggered flip-flops.
• It operates on a wide voltage range, typically between 2V and 6V.
• This IC offers high-speed performance and low power consumption.
• It is designed to be compatible with both TTL and CMOS logic families.

Package

The 74AC273SJX is available in a small outline package (SOP) with 20 pins.

Essence

The essence of the 74AC273SJX lies in its ability to store and retain digital information, making it an essential component in various electronic systems.

Packaging/Quantity

This IC is typically sold in reels or tubes, with each reel containing a quantity of 250 units.

Specifications

• Supply Voltage Range: 2V to 6V
• High-Level Input Voltage: 2V to VCC
• Low-Level Input Voltage: GND to 0.8V
• High-Level Output Voltage: VCC - 0.5V
• Low-Level Output Voltage: 0.5V
• Maximum Operating Frequency: 125 MHz
• Propagation Delay Time: 4 ns

Detailed Pin Configuration

The 74AC273SJX has a total of 20 pins, which are assigned specific functions as follows:

1. CP (Clock Pulse) - Positive-edge-triggered clock input
2. D0-D7 (Data Inputs) - Eight individual data inputs
3. Q0-Q7 (Flip-Flop Outputs) - Corresponding outputs for each data input
4. GND (Ground) - Ground reference
5. Q7' (Complementary Output) - Complementary output for Q7
6. MR (Master Reset) - Active low reset input
7. OE (Output Enable) - Active low output enable input
8. VCC (Supply Voltage) - Positive power supply

Functional Features

• Positive-edge-triggered flip-flops allow synchronous data storage and retrieval.
• The master reset (MR) input allows for a complete reset of all flip-flops simultaneously.
• The output enable (OE) input enables or disables the outputs, providing control over data flow.
• Compatibility with both TTL and CMOS logic families ensures versatility in system integration.

Advantages and Disadvantages

Advantages

• High-speed performance enables efficient data processing.
• Low power consumption contributes to energy efficiency.
• Wide voltage range compatibility enhances flexibility in various applications.
• Compact SOP package facilitates space-saving designs.

Disadvantages

• Limited number of flip-flops (eight in total) may restrict certain complex applications.
• Lack of built-in protection features against electrical faults may require additional circuitry.

Working Principles

The 74AC273SJX operates based on positive-edge-triggered flip-flops. When a clock pulse is received at the CP input, the data present at the D0-D7 inputs is latched and stored in the corresponding flip-flops. The stored data can then be accessed through the Q0-Q7 outputs. The master reset (MR) input allows for a complete reset of all flip-flops, while the output enable (OE) input controls the flow of data from the outputs.

Detailed Application Field Plans

The 74AC273SJX finds extensive use in various digital electronic systems, including but not limited to: - Microprocessors and microcontrollers - Memory units - Data storage devices - Communication systems - Control systems

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the 74AC273SJX include: - 74HC273: Compatible with CMOS logic family, operates at a lower voltage range. - 74LS273: Compatible with TTL logic family, offers higher noise immunity. - CD4013: Dual D-type flip-flop IC, suitable for more complex applications.

In conclusion, the 74AC273SJX is a versatile integrated circuit used for storing and manipulating binary data in digital electronic systems. Its high-speed performance, low power consumption, and compatibility with different logic families make it a valuable component in various applications.

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