SN74AS867DWRG4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Gate
• Characteristics: High-speed, low-power, 16-bit bus transceiver
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Transfers data bidirectionally between a 16-bit bus and a 3-state bus
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 6ns (typical)
• Output Drive Capability: ±24mA
• Pin Count: 20

Detailed Pin Configuration

1. A0 - Data Bus A Bit 0
2. A1 - Data Bus A Bit 1
3. A2 - Data Bus A Bit 2
4. A3 - Data Bus A Bit 3
5. A4 - Data Bus A Bit 4
6. A5 - Data Bus A Bit 5
7. A6 - Data Bus A Bit 6
8. A7 - Data Bus A Bit 7
9. A8 - Data Bus A Bit 8
10. A9 - Data Bus A Bit 9
11. A10 - Data Bus A Bit 10
12. A11 - Data Bus A Bit 11
13. A12 - Data Bus A Bit 12
14. A13 - Data Bus A Bit 13
15. A14 - Data Bus A Bit 14
16. A15 - Data Bus A Bit 15
17. OE - Output Enable
18. DIR - Direction Control
19. B0 - Data Bus B Bit 0
20. B1 - Data Bus B Bit 1

Functional Features

• Bidirectional data transfer between a 16-bit bus and a 3-state bus
• High-speed operation with low power consumption
• Output enable and direction control for flexible data flow management
• Wide supply voltage range for compatibility with various systems
• Robust output drive capability for reliable signal transmission

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient data transfer - Low-power design reduces energy consumption - Flexible data flow management through output enable and direction control - Wide supply voltage range ensures compatibility with different systems

Disadvantages: - Limited to 16-bit bus applications, may not be suitable for larger data buses - Propagation delay time of 6ns may not meet the requirements of extremely time-sensitive applications

Working Principles

The SN74AS867DWRG4 is a 16-bit bus transceiver that enables bidirectional data transfer between a 16-bit bus (Bus A) and a 3-state bus (Bus B). The direction of data flow is controlled by the DIR pin. When DIR is high, data is transferred from Bus A to Bus B, and when DIR is low, data is transferred from Bus B to Bus A.

The output enable (OE) pin allows the user to enable or disable the outputs. When OE is high, the outputs are enabled, and when OE is low, the outputs are disabled, effectively isolating the two buses.

The IC operates within a wide supply voltage range of 4.5V to 5.5V, making it compatible with various systems. It features a high-speed operation with a propagation delay time of 6ns, allowing for efficient data transfer. The robust output drive capability of ±24mA ensures reliable signal transmission.

Detailed Application Field Plans

The SN74AS867DWRG4 is commonly used in applications that require bidirectional data transfer between a 16-bit bus and a 3-state bus. Some specific application fields include:

1. Microprocessor Systems: The IC facilitates communication between the microprocessor and external devices, such as memory modules or peripheral devices.
2. Data Acquisition Systems: It enables data transfer between different components of a data acquisition system, such as analog-to-digital converters and microcontrollers.
3. Communication Systems: The IC can be utilized in communication systems to manage data flow between different subsystems, such as transceivers and processors.
4. Industrial Control Systems: It plays a crucial role in industrial control systems by enabling data exchange between various control modules and sensors/actuators.

Detailed and Complete Alternative Models

1. SN74AS868DWRG4: Similar to SN74AS867DWRG4 but with inverted direction control (DIR) functionality.
2. SN74AS866DWRG4: 16-bit bus transceiver with additional output enable control for each individual bit.