SN74AS648DWRE4

Product Overview

• Category: Integrated Circuit
• Use: Data Bus Transceiver
• Characteristics:
  • High-speed operation
  • Bidirectional data transfer
  • Wide voltage range
  • Low power consumption
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Transfers data between two bidirectional buses with different voltage levels
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2V to 6V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Maximum Data Rate: 24 Mbps

Detailed Pin Configuration

The SN74AS648DWRE4 has a total of 20 pins. The pin configuration is as follows:

1. OE (Output Enable) A
2. A1 (Bus A Data Bit 1)
3. A2 (Bus A Data Bit 2)
4. A3 (Bus A Data Bit 3)
5. A4 (Bus A Data Bit 4)
6. GND (Ground)
7. B4 (Bus B Data Bit 4)
8. B3 (Bus B Data Bit 3)
9. B2 (Bus B Data Bit 2)
10. B1 (Bus B Data Bit 1)
11. VCC (Supply Voltage)
12. DIR (Direction Control)
13. BDIR (Bus B Direction Control)
14. GND (Ground)
15. B4 (Bus B Data Bit 4)
16. B3 (Bus B Data Bit 3)
17. B2 (Bus B Data Bit 2)
18. B1 (Bus B Data Bit 1)
19. OE (Output Enable) B
20. GND (Ground)

Functional Features

• Bidirectional data transfer between two buses with different voltage levels
• High-speed operation allows for efficient data transmission
• Output enable control for disabling the outputs when not in use
• Direction control for selecting the direction of data transfer

Advantages and Disadvantages

Advantages: - Wide voltage range allows compatibility with various systems - Low power consumption for energy-efficient operation - High-speed operation enables fast data transfer

Disadvantages: - Limited maximum data rate compared to some other transceiver models - Requires careful handling due to its small package size

Working Principles

The SN74AS648DWRE4 is a bidirectional data bus transceiver that facilitates data transfer between two buses, A and B, with different voltage levels. The direction of data flow is controlled by the DIR pin. When DIR is high, data flows from bus A to bus B, and when DIR is low, data flows from bus B to bus A.

The transceiver operates at high speeds, allowing for efficient data transmission. It features an output enable control (OE) for disabling the outputs when not in use, reducing power consumption. The wide voltage range ensures compatibility with various systems.

Detailed Application Field Plans

The SN74AS648DWRE4 can be used in various applications where bidirectional data transfer between buses with different voltage levels is required. Some potential application fields include:

1. Industrial Automation: Used in PLCs (Programmable Logic Controllers) to interface between different voltage level buses.
2. Automotive Electronics: Enables communication between different subsystems with varying voltage requirements, such as engine control units and infotainment systems.
3. Telecommunications: Facilitates data exchange between different network interfaces operating at different voltage levels.
4. Consumer Electronics: Allows for data transfer between devices with different voltage requirements, such as smartphones and peripherals.

Detailed and Complete Alternative Models

1. SN74AS646DWRE4: Similar to SN74AS648DWRE4 but with 16-bit data bus width instead of 8-bit.
2. SN74LVC4245ADWR: Bidirectional voltage-level translator with a different pin configuration and package type.
3. SN74HCT245N: Octal bus transceiver with non-inverting outputs, suitable for bidirectional data transfer.

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

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