SN74ALS245ADBRG4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Bus Transceiver
• Characteristics: High-speed, non-inverting, 8-bit bidirectional transceiver
• Package: SSOP-20
• Essence: Converts signals between two bidirectional bus systems
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• High-Level Input Voltage: 2V to VCC + 0.5V
• Low-Level Input Voltage: -0.5V to 0.8V
• High-Level Output Voltage: VCC - 0.5V
• Low-Level Output Voltage: 0.5V
• Maximum Operating Frequency: 40MHz

Detailed Pin Configuration

1. DIR (Direction Control)
2. GND (Ground)
3. B0 (Data Bus B, Bit 0)
4. B1 (Data Bus B, Bit 1)
5. B2 (Data Bus B, Bit 2)
6. B3 (Data Bus B, Bit 3)
7. B4 (Data Bus B, Bit 4)
8. B5 (Data Bus B, Bit 5)
9. B6 (Data Bus B, Bit 6)
10. B7 (Data Bus B, Bit 7)
11. VCC (Supply Voltage)
12. OE (Output Enable)
13. A7 (Address Bus, Bit 7)
14. A6 (Address Bus, Bit 6)
15. A5 (Address Bus, Bit 5)
16. A4 (Address Bus, Bit 4)
17. A3 (Address Bus, Bit 3)
18. A2 (Address Bus, Bit 2)
19. A1 (Address Bus, Bit 1)
20. A0 (Address Bus, Bit 0)

Functional Features

• Bidirectional data transfer between two bus systems
• Non-inverting logic
• High-speed operation
• Output enable control for tristate outputs
• Direction control for selecting data flow direction

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient data transfer - Non-inverting logic ensures compatibility with various bus systems - Tristate outputs provide flexibility in controlling data flow

Disadvantages: - Limited operating frequency of 40MHz - Requires external control signals for direction and output enable

Working Principles

The SN74ALS245ADBRG4 is a bidirectional bus transceiver that converts signals between two bus systems. It operates using non-inverting logic, ensuring compatibility with different bus architectures. The direction control pin determines the data flow direction, while the output enable pin enables or disables the tristate outputs.

Detailed Application Field Plans

The SN74ALS245ADBRG4 is commonly used in various applications, including:

1. Microprocessor interfacing
2. Data communication systems
3. Industrial automation
4. Automotive electronics
5. Networking equipment

Detailed and Complete Alternative Models

1. SN74ALS244ADBRG4: Octal Buffer/Line Driver with 3-State Outputs
2. SN74ALS240ADWR: Octal Inverter/Buffer with 3-State Outputs
3. SN74ALS541N: Octal Buffer/Line Driver with 3-State Outputs
4. SN74ALS573CDW: Octal D-Type Transparent Latch with 3-State Outputs
5. SN74ALS645ADWR: Octal Bus Transceiver with 3-State Outputs

(Note: This list is not exhaustive and there are other alternative models available in the market.)

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