Encyclopedia Entry: 74ACT273SJ

Product Overview

Category

The 74ACT273SJ belongs to the category of integrated circuits (ICs) and specifically falls under the family of flip-flops.

Use

This IC is primarily used for storing and manipulating digital data in electronic circuits. It serves as a D-type flip-flop, capable of storing a single bit of information.

Characteristics

• High-speed operation
• Low power consumption
• Wide operating voltage range
• Compatibility with TTL (Transistor-Transistor Logic) and CMOS (Complementary Metal-Oxide-Semiconductor) logic families

Package

The 74ACT273SJ is available in a standard 20-pin plastic small outline (SO) package.

Essence

The essence of the 74ACT273SJ lies in its ability to store and retain digital information, making it an essential component in various electronic systems.

Packaging/Quantity

The IC is typically packaged in reels or tubes, with each reel containing approximately 2500 units.

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Input Voltage High (VIH): 2.0V (minimum), 5.5V (maximum)
• Input Voltage Low (VIL): -0.5V (minimum), 0.8V (maximum)
• Output Voltage High (VOH): 2.4V (minimum), VCC (maximum)
• Output Voltage Low (VOL): 0.4V (maximum), 0.1V (maximum)

Detailed Pin Configuration

The 74ACT273SJ has a total of 20 pins, each serving a specific function. The pin configuration is as follows:

1. CLR (Clear)
2. D0 (Data Input 0)
3. D1 (Data Input 1)
4. D2 (Data Input 2)
5. D3 (Data Input 3)
6. D4 (Data Input 4)
7. D5 (Data Input 5)
8. D6 (Data Input 6)
9. D7 (Data Input 7)
10. GND (Ground)
11. Q7 (Output Q7)
12. Q6 (Output Q6)
13. Q5 (Output Q5)
14. Q4 (Output Q4)
15. Q3 (Output Q3)
16. Q2 (Output Q2)
17. Q1 (Output Q1)
18. Q0 (Output Q0)
19. CLK (Clock Input)
20. VCC (Supply Voltage)

Functional Features

The 74ACT273SJ offers the following functional features:

• Asynchronous clear input (CLR) for resetting the flip-flop
• Eight data inputs (D0-D7) for storing digital information
• Eight corresponding output pins (Q0-Q7) for retrieving stored data
• Clock input (CLK) for synchronizing data storage and retrieval operations

Advantages and Disadvantages

Advantages

• High-speed operation enables efficient data processing
• Low power consumption contributes to energy efficiency
• Wide operating voltage range allows compatibility with various systems
• Compatibility with TTL and CMOS logic families enhances versatility

Disadvantages

• Limited storage capacity of a single bit per flip-flop
• Susceptible to noise interference due to high-speed operation

Working Principles

The 74ACT273SJ operates based on the principles of sequential logic. It utilizes positive-edge-triggered D-type flip-flops to store and retrieve digital data. The clock input (CLK) triggers the transfer of data from the input pins (D0-D7) to the corresponding output pins (Q0-Q7). The asynchronous clear input (CLR) resets the flip-flop, clearing the stored data.

Detailed Application Field Plans

The 74ACT273SJ finds applications in various electronic systems, including but not limited to:

1. Microprocessors and microcontrollers
2. Memory units and storage devices
3. Communication systems
4. Digital signal processing circuits
5. Control and automation systems

Detailed and Complete Alternative Models

Some alternative models that serve similar functions to the 74ACT273SJ include:

1. 74HC273: High-speed CMOS logic family variant
2. 74LS273: Low-power Schottky TTL logic family variant
3. CD4013: Dual D-type flip-flop IC from the CMOS logic family
4. SN74LVC273: Low-voltage CMOS logic family variant

These alternative models offer comparable functionality and can be used as substitutes depending on specific requirements.

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