SN74HC245DBRG4

Product Overview

• Category: Integrated Circuit
• Use: Level Shifter/Transceiver
• Characteristics: High-Speed, Non-Inverting, 3-State
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Bidirectional Voltage-Level Translator
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 2V to 6V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Maximum Operating Frequency: 80 MHz
• Number of Channels: 8
• Logic Family: HC
• Logic Type: CMOS
• Output Type: 3-State
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The SN74HC245DBRG4 has a total of 20 pins. The pin configuration is as follows:

1. DIR (Direction Control Input)
2. OE (Output Enable Input)
3. A1 (Data Input/Output)
4. B1 (Data Input/Output)
5. A2 (Data Input/Output)
6. B2 (Data Input/Output)
7. A3 (Data Input/Output)
8. B3 (Data Input/Output)
9. A4 (Data Input/Output)
10. B4 (Data Input/Output)
11. GND (Ground)
12. B5 (Data Input/Output)
13. A5 (Data Input/Output)
14. B6 (Data Input/Output)
15. A6 (Data Input/Output)
16. B7 (Data Input/Output)
17. A7 (Data Input/Output)
18. B8 (Data Input/Output)
19. A8 (Data Input/Output)
20. VCC (Supply Voltage)

Functional Features

• Bidirectional voltage-level translation between two independent buses
• Non-inverting logic levels
• 3-state outputs for bus isolation
• High-speed operation suitable for various applications
• Wide supply voltage range allows compatibility with different systems

Advantages and Disadvantages

Advantages: - Provides bidirectional level shifting capability - Non-inverting logic levels preserve signal integrity - 3-state outputs allow for bus isolation - High-speed operation enables efficient data transfer - Wide supply voltage range enhances compatibility

Disadvantages: - May not be suitable for applications requiring higher operating frequencies - Limited number of channels (8) may restrict usage in complex systems

Working Principles

The SN74HC245DBRG4 is a bidirectional level shifter/transceiver that allows voltage translation between two independent buses. It operates by receiving data from one bus and transmitting it to the other, while preserving the logic levels and signal integrity. The direction of data flow is controlled by the DIR pin, and the output enable (OE) pin enables or disables the outputs. The device also features 3-state outputs, which can be used to isolate the bus when necessary.

Detailed Application Field Plans

The SN74HC245DBRG4 is commonly used in various applications, including:

1. Microcontroller interfacing: It facilitates communication between microcontrollers operating at different voltage levels.
2. Data transmission systems: It enables voltage level translation between different data buses, such as UART, SPI, and I2C.
3. Industrial automation: It is utilized in control systems where different voltage domains need to communicate with each other.
4. Automotive electronics: It helps in connecting different subsystems operating at different voltage levels within a vehicle.
5. IoT devices: It assists in bridging the gap between sensors and microcontrollers with varying voltage requirements.

Detailed and Complete Alternative Models

1. SN74LVC245A: Low-Voltage CMOS Octal Bus Transceiver
2. SN74LVCH245A: Low-Voltage CMOS Octal Bus Transceiver with 3-State Outputs
3. SN74HCT245: High-Speed CMOS Octal Bus Transceiver
4. SN74ACT245: Octal Bus Transceiver with 3-State Outputs
5. SN74ALVC245: Low-Voltage CMOS Octal Bus Transceiver with 3-State Outputs

These alternative models offer similar functionality and can be considered as alternatives to the SN74HC245DBRG4 based on specific requirements and design considerations.

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