Encyclopedia Entry: 74FCT521CTQG

Product Information Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Converter
• Characteristics: High-speed, low-power consumption
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Bidirectional octal D-type flip-flop with 3-state outputs
• Packaging/Quantity: Available in reels of 2500 units

Specifications

The 74FCT521CTQG is a logic level converter integrated circuit designed for bidirectional data transfer between two voltage domains. It features eight D-type flip-flops with 3-state outputs, allowing for efficient and reliable data transmission.

Detailed Pin Configuration

The 74FCT521CTQG has a total of 20 pins, which are assigned as follows:

1. GND - Ground
2. Q0 - Output 0
3. D0 - Data input 0
4. D1 - Data input 1
5. Q1 - Output 1
6. D2 - Data input 2
7. D3 - Data input 3
8. Q2 - Output 2
9. VCC - Power supply
10. Q3 - Output 3
11. D4 - Data input 4
12. D5 - Data input 5
13. Q4 - Output 4
14. D6 - Data input 6
15. D7 - Data input 7
16. Q5 - Output 5
17. OE - Output Enable
18. Q6 - Output 6
19. CLK - Clock input
20. Q7 - Output 7

Functional Features

• Bidirectional data transfer between two voltage domains
• High-speed operation for efficient data transmission
• Low-power consumption for energy efficiency
• 3-state outputs allow for bus sharing and multiple device connections

Advantages and Disadvantages

Advantages: - Efficient bidirectional data transfer - High-speed operation - Low-power consumption - 3-state outputs for bus sharing

Disadvantages: - Limited to octal D-type flip-flop functionality - Requires careful consideration of voltage compatibility between domains

Working Principles

The 74FCT521CTQG operates by utilizing D-type flip-flops to store and transfer data. It supports bidirectional data transfer between two voltage domains, allowing for seamless communication between different logic levels. The 3-state outputs enable bus sharing and facilitate multiple device connections.

Detailed Application Field Plans

The 74FCT521CTQG is commonly used in various applications that require bidirectional data transfer and voltage level conversion. Some typical application fields include:

1. Microcontroller interfacing with different logic families
2. Communication systems involving mixed voltage domains
3. Data acquisition and processing systems
4. Industrial automation and control systems
5. Automotive electronics

Detailed and Complete Alternative Models

1. SN74LVC8T245PW - Octal Bus Transceiver with 3-State Outputs
2. CD4504BE - Hex Voltage Level Shifter
3. MAX3373EEKA+ - Dual Bidirectional Logic Level Translator
4. PCA9306DCUR - Dual Bi-Directional I2C-Bus and SMBus Voltage-Level Translator

These alternative models offer similar functionality and can be considered as alternatives to the 74FCT521CTQG based on specific requirements and design considerations.

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