SN74ALS867ADWRE4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Gate
• Characteristics: High-speed, low-power, TTL-compatible
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: The SN74ALS867ADWRE4 is a 16-bit bus transceiver with tri-state outputs. It is designed to provide bidirectional communication between two buses or systems.
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage: 4.5V to 5.5V
• Operating Temperature Range: -40°C to 85°C
• Propagation Delay: 6ns (typical)
• Output Drive Capability: ±24mA
• Input Capacitance: 3pF (typical)
• Output Capacitance: 6pF (typical)

Detailed Pin Configuration

The SN74ALS867ADWRE4 has a total of 20 pins. Here is the detailed pin configuration:

1. A1: Bus A data input/output
2. A2: Bus A data input/output
3. A3: Bus A data input/output
4. A4: Bus A data input/output
5. A5: Bus A data input/output
6. A6: Bus A data input/output
7. A7: Bus A data input/output
8. A8: Bus A data input/output
9. GND: Ground
10. B8: Bus B data input/output
11. B7: Bus B data input/output
12. B6: Bus B data input/output
13. B5: Bus B data input/output
14. B4: Bus B data input/output
15. B3: Bus B data input/output
16. B2: Bus B data input/output
17. B1: Bus B data input/output
18. OE: Output Enable
19. VCC: Supply Voltage
20. GND: Ground

Functional Features

• Bidirectional communication between two buses or systems
• Tri-state outputs for bus isolation
• TTL-compatible inputs and outputs
• High-speed operation

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient data transfer - Tri-state outputs provide bus isolation, allowing multiple devices to share the same bus without interference - TTL compatibility ensures easy integration with existing logic circuits

Disadvantages: - Limited voltage supply range (4.5V to 5.5V) - Propagation delay of 6ns may not be suitable for applications requiring ultra-fast response times

Working Principles

The SN74ALS867ADWRE4 functions as a bidirectional bus transceiver by using its internal circuitry to control the direction of data flow between two buses or systems. The Output Enable (OE) pin is used to enable or disable the tri-state outputs, allowing the device to either drive the bus or isolate itself from it.

When the OE pin is high, the device is in the active state, and the data from Bus A is transmitted to Bus B and vice versa. When the OE pin is low, the tri-state outputs are disabled, effectively isolating the device from the bus.

Detailed Application Field Plans

The SN74ALS867ADWRE4 can be used in various applications that require bidirectional communication between two buses or systems. Some potential application fields include:

1. Data communication systems
2. Microprocessor-based systems
3. Industrial automation
4. Telecommunications equipment
5. Automotive electronics

Detailed and Complete Alternative Models

Here are some alternative models that offer similar functionality to the SN74ALS867ADWRE4:

1. SN74ALS866A: 8-bit bus transceiver with tri-state outputs
2. SN74ALS868: 16-bit bus transceiver with non-inverting outputs
3. SN74ALS869: 16-bit bus transceiver with inverting outputs

These alternative models can be considered based on specific requirements and compatibility with existing systems.

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