SN74ACT245PWG4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Level Shifter/Transceiver
• Characteristics: High-speed, non-inverting, bidirectional communication
• Package: TSSOP-20
• Essence: Transfers data between different voltage domains
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 2 V to 6 V
• Input Voltage Range: 0 V to VCC
• Output Voltage Range: 0 V to VCC
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 5.5 ns (typical)
• Maximum Operating Frequency: 125 MHz

Detailed Pin Configuration

The SN74ACT245PWG4 has a total of 20 pins. The pin configuration is as follows:

1. DIR (Direction Control)
2. OE (Output Enable)
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 data transfer between two voltage domains
• Non-inverting logic levels
• High-speed operation
• Output enable and direction control for flexible data flow management

Advantages and Disadvantages

Advantages: - Allows communication between devices operating at different voltage levels - Non-inverting logic levels preserve signal integrity - High-speed operation enables efficient data transfer

Disadvantages: - Limited to a maximum operating frequency of 125 MHz - Requires careful consideration of voltage compatibility between connected devices

Working Principles

The SN74ACT245PWG4 is a level shifter/transceiver IC that facilitates bidirectional data transfer between two voltage domains. It operates by converting the logic levels of input data from one voltage domain to another, allowing seamless communication between devices operating at different voltage levels.

The direction control pin (DIR) determines the direction of data flow, while the output enable pin (OE) enables or disables the outputs. The non-inverting nature of the IC ensures that the logic levels of the input data are preserved during the conversion process.

Detailed Application Field Plans

The SN74ACT245PWG4 finds applications in various fields where there is a need to interface devices operating at different voltage levels. Some common application areas include:

1. Microcontroller interfacing with peripheral devices
2. Communication systems involving multiple voltage domains
3. Industrial automation and control systems
4. Data acquisition and processing systems
5. Sensor networks and IoT devices

Detailed and Complete Alternative Models

1. SN74LVC245APW - Low-Voltage CMOS Octal Bus Transceiver
2. SN74HCT245N - High-Speed CMOS Octal Bus Transceiver
3. SN74LVCH245ADBR - Low-Voltage CMOS Octal Bus Transceiver with 3-State Outputs
4. SN74AHC245DGV - Octal Bus Transceiver with 3-State Outputs

These alternative models offer similar functionality and can be considered as alternatives to the SN74ACT245PWG4 based on specific requirements and compatibility with the target application.

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