SN74BCT29821DWG4

Product Overview

• Category: Integrated Circuit
• Use: Logic Level Shifter
• Characteristics: High-speed, Bi-directional, Voltage-level translation
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Logic level shifting between different voltage domains
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2 V to 6 V
• Input Voltage Range (VI): 0 V to VCC
• Output Voltage Range (VO): 0 V to VCC
• Maximum Input Current (I_I): ±20 mA
• Maximum Output Current (I_O): ±50 mA
• Propagation Delay Time (t_PD): 5.8 ns (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The SN74BCT29821DWG4 has a total of 20 pins. The pin configuration is as follows:

1. OE (Output Enable) - Active Low Output Enable
2. A1 - Data Input/Output for Port A
3. B1 - Data Input/Output for Port B
4. GND - Ground
5. B2 - Data Input/Output for Port B
6. A2 - Data Input/Output for Port A
7. V_CC - Positive Power Supply
8. Y1 - Data Input/Output for Port Y
9. Y2 - Data Input/Output for Port Y
10. GND - Ground
11. Y3 - Data Input/Output for Port Y
12. Y4 - Data Input/Output for Port Y
13. GND - Ground
14. Y5 - Data Input/Output for Port Y
15. Y6 - Data Input/Output for Port Y
16. V_CC - Positive Power Supply
17. A3 - Data Input/Output for Port A
18. B3 - Data Input/Output for Port B
19. GND - Ground
20. OE (Output Enable) - Active Low Output Enable

Functional Features

• Bi-directional voltage-level translation between different voltage domains.
• High-speed operation with a propagation delay time of 5.8 ns.
• Output enable control for disabling the outputs when not needed.
• Wide supply voltage range allows compatibility with various systems.

Advantages and Disadvantages

Advantages: - Enables seamless communication between devices operating at different voltage levels. - High-speed operation ensures efficient data transfer. - Output enable control provides flexibility in managing the outputs.

Disadvantages: - Limited to voltage level shifting and does not provide additional functionality. - Requires careful consideration of input and output voltage ranges to avoid damage.

Working Principles

The SN74BCT29821DWG4 is designed to perform bi-directional voltage-level translation between different voltage domains. It utilizes a combination of MOSFETs and CMOS technology to achieve this functionality. The device operates by monitoring the input voltage levels and translating them to the corresponding output voltage levels based on the specified voltage ranges. The output enable control allows the user to disable the outputs when not required, reducing power consumption and preventing unintended signal interference.

Detailed Application Field Plans

The SN74BCT29821DWG4 can be used in various applications where logic level shifting is required. Some potential application fields include:

1. Communication Systems: Facilitating communication between devices operating at different voltage levels, such as microcontrollers, sensors, and display modules.
2. Industrial Automation: Enabling compatibility between different components in industrial automation systems, such as PLCs (Programmable Logic Controllers), motor drivers, and sensors.
3. Consumer Electronics: Supporting voltage level translation in devices like smartphones, tablets, and gaming consoles, where different components may operate at varying voltage levels.
4. Automotive Electronics: Ensuring seamless integration of various electronic systems in automobiles, including infotainment systems, engine control units, and sensor networks.

Detailed and Complete Alternative Models

1. SN74LVC4245A: Bi-directional voltage-level translator with 8-bit wide bus switching capability.
2. TXB0108: Eight-channel bi-directional voltage-level translator with automatic direction sensing.
3. PCA9306: Dual bidirectional I2C-bus and SMBus voltage-level translator.

These alternative models offer similar functionality to the SN74BCT29821DWG4 and can be considered as alternatives based on specific application requirements.

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