SN74HC245PWRE4

Product Overview

• Category: Integrated Circuit
• Use: Level Shifter/Transceiver
• Characteristics: High-Speed, Non-Inverting, 3-State
• Package: TSSOP (Thin Shrink Small Outline Package)
• 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 (High-Speed CMOS)
• Output Type: 3-State

Detailed Pin Configuration

The SN74HC245PWRE4 has a total of 20 pins. The pin configuration is as follows:

1. DIR (Direction Control)
2. OE (Output Enable)
3. A1 (Input/Output Port A)
4. A2 (Input/Output Port A)
5. A3 (Input/Output Port A)
6. A4 (Input/Output Port A)
7. A5 (Input/Output Port A)
8. A6 (Input/Output Port A)
9. A7 (Input/Output Port A)
10. GND (Ground)
11. B7 (Input/Output Port B)
12. B6 (Input/Output Port B)
13. B5 (Input/Output Port B)
14. B4 (Input/Output Port B)
15. B3 (Input/Output Port B)
16. B2 (Input/Output Port B)
17. B1 (Input/Output Port B)
18. VCC (Supply Voltage)
19. NC (No Connection)
20. NC (No Connection)

Functional Features

• Bidirectional voltage-level translation between two independent buses
• Non-inverting logic levels conversion
• 3-state outputs for bus isolation
• High-speed operation suitable for various applications

Advantages and Disadvantages

Advantages: - Allows interfacing between devices operating at different voltage levels - Non-inverting logic levels preserve signal integrity - 3-state outputs enable bus isolation when needed - High-speed operation supports fast data transfer

Disadvantages: - Limited to a maximum operating frequency of 80 MHz - Requires careful consideration of power supply voltage compatibility

Working Principles

The SN74HC245PWRE4 is a bidirectional level shifter/transceiver that allows voltage-level translation between two independent buses. It operates by receiving input signals from one bus and converting them to the appropriate logic levels for the other bus. The direction of data flow is controlled by the DIR pin, while the OE pin enables or disables the outputs. The device uses non-inverting logic levels, ensuring signal integrity during translation. The 3-state outputs provide bus isolation when necessary.

Detailed Application Field Plans

The SN74HC245PWRE4 is widely used in various applications where voltage-level translation is required. Some common application fields include:

1. Microcontroller Interfacing: It facilitates communication between microcontrollers operating at different voltage levels.
2. Sensor Networks: It enables connectivity between sensors with varying voltage requirements.
3. Industrial Automation: It allows integration of different control systems operating at different voltage levels.
4. Communication Systems: It aids in connecting devices with different voltage interfaces, such as UART, SPI, or I2C.
5. Automotive Electronics: It assists in interfacing components within automotive systems that operate at different voltage levels.

Detailed and Complete Alternative Models

1. TXS0108E: 8-Bit Bidirectional Voltage-Level Translator with Automatic Direction Control
2. PCA9306: Dual Bidirectional I2C-Bus and SMBus Voltage-Level Translator
3. SN74LVC4245A: Octal Bus Transceiver with 3-State Outputs
4. CD4050B: Hex Non-Inverting Buffer/Converter

These alternative models offer similar functionality to the SN74HC245PWRE4 and can be considered as alternatives based on specific requirements.

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