SN74HC645NSRE4

Product Overview

• Category: Integrated Circuit
• Use: Level Shifter and Bus Transceiver
• Characteristics: High-Speed, Non-Inverting, 3-State
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Transfers data between different voltage levels in digital systems
• 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

1. A1 - Channel A Data Input/Output
2. B1 - Channel B Data Input/Output
3. GND - Ground
4. A2 - Channel A Enable Input
5. B2 - Channel B Enable Input
6. OE - Output Enable Input
7. VCC - Positive Power Supply
8. B3 - Channel B Direction Control
9. A3 - Channel A Direction Control

Functional Features

• Bidirectional Data Transfer: Allows data transmission in both directions
• Voltage Level Shifting: Converts signals between different voltage levels
• 3-State Outputs: Provides high impedance state when disabled
• Enable Inputs: Controls the direction of data flow
• High-Speed Operation: Supports fast data transfer up to 80 MHz

Advantages and Disadvantages

Advantages: - Enables communication between devices with different voltage levels - Supports bidirectional data transfer - High-speed operation for efficient data transmission

Disadvantages: - Limited to a maximum operating frequency of 80 MHz - Requires careful handling due to small package size

Working Principles

The SN74HC645NSRE4 is a level shifter and bus transceiver integrated circuit. It facilitates the transfer of data between digital systems operating at different voltage levels. The device features bidirectional data transfer, allowing communication in both directions. It utilizes enable inputs to control the direction of data flow. The 3-state outputs provide a high impedance state when disabled, preventing interference with other devices on the bus. The IC operates at high speeds, supporting data transmission up to 80 MHz.

Detailed Application Field Plans

The SN74HC645NSRE4 is commonly used in various applications where voltage level shifting and bidirectional data transfer are required. Some potential application fields include:

1. Communication Systems: Facilitates data exchange between devices operating at different voltage levels in communication networks.
2. Industrial Automation: Enables communication between sensors, actuators, and control systems with varying voltage requirements.
3. Automotive Electronics: Used in automotive systems to interface between different voltage domains, such as CAN bus communication.
4. Consumer Electronics: Allows for data transfer between devices like smartphones, tablets, and peripherals with different voltage levels.
5. Embedded Systems: Supports communication between microcontrollers, sensors, and other components in embedded systems.

Detailed and Complete Alternative Models

1. SN74LVC245APWR - Low-Voltage CMOS Octal Bus Transceiver
2. SN74LVCH245APW - Low-Voltage CMOS Octal Bus Transceiver with 3-State Outputs
3. SN74HCT245N - High-Speed CMOS Octal Bus Transceiver
4. SN74AHC245DGV - High-Speed CMOS Octal Bus Transceiver with 3-State Outputs
5. SN74LVTH245ADBR - Low-Voltage CMOS Octal Bus Transceiver with 3-State Outputs

These alternative models offer similar functionality and can be used as substitutes for the SN74HC645NSRE4 in various applications.

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