SN74LVC821APWR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Gate
• Characteristics: Low Voltage, Very High-Speed CMOS (Complementary Metal-Oxide-Semiconductor) technology
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: 8-bit D-type Flip-Flop with 3-State Outputs
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• Input Voltage Range: -0.5V to VCC + 0.5V
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to 85°C
• Propagation Delay Time: 2.7ns (typical)
• Output Drive Capability: ±24mA
• Power Dissipation: 4.6mW (typical)

Detailed Pin Configuration

The SN74LVC821APWR has a total of 20 pins. 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. Q0 (Flip-Flop Output 0)
12. Q1 (Flip-Flop Output 1)
13. Q2 (Flip-Flop Output 2)
14. Q3 (Flip-Flop Output 3)
15. Q4 (Flip-Flop Output 4)
16. Q5 (Flip-Flop Output 5)
17. Q6 (Flip-Flop Output 6)
18. Q7 (Flip-Flop Output 7)
19. OE (Output Enable)
20. VCC (Power Supply)

Functional Features

• 8-bit D-type flip-flop with 3-state outputs
• Clear input (CLR) for synchronous reset of all flip-flops
• Output enable input (OE) to control the outputs
• High-speed operation with low power consumption
• Compatible with TTL (Transistor-Transistor Logic) and CMOS logic levels
• Schmitt-trigger inputs for noise immunity
• Balanced propagation delays for accurate timing

Advantages and Disadvantages

Advantages: - Low voltage operation allows for compatibility with a wide range of systems - Very high-speed operation enables efficient data processing - 3-state outputs provide flexibility in connecting multiple devices - Schmitt-trigger inputs ensure reliable operation in noisy environments

Disadvantages: - Limited output drive capability may restrict use in certain applications requiring higher current sourcing/sinking - Temperature range limited to -40°C to 85°C, which may not be suitable for extreme temperature environments

Working Principles

The SN74LVC821APWR is an 8-bit D-type flip-flop with 3-state outputs. It operates based on the principles of digital logic. The flip-flop stores and transfers data using clock signals. The clear input (CLR) allows for synchronous reset of all flip-flops, while the output enable input (OE) controls the outputs. The device operates at low voltages and utilizes CMOS technology for high-speed and low-power performance.

Detailed Application Field Plans

The SN74LVC821APWR can be used in various applications, including but not limited to:

1. Microprocessor-based systems
2. Data storage and retrieval systems
3. Communication systems
4. Industrial control systems
5. Automotive electronics
6. Consumer electronics

Detailed and Complete Alternative Models

1. SN74LVC821ADW - SOIC (Small Outline Integrated Circuit) package, tube packaging
2. SN74LVC821APW - TSSOP package, tube packaging
3. SN74LVC821ARGYR - VQFN (Very Thin Quad Flat No-Lead) package, tape and reel packaging
4. SN74LVC821APWT - TSSOP package, tape and reel packaging
5. SN74LVC821APWTE4 - TSSOP package, tape and reel packaging, RoHS compliant

These alternative models offer similar functionality and characteristics to the SN74LVC821APWR, providing options for different packaging preferences or specific application requirements.

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