MC74HC245ADTG

Product Overview

• Category: Integrated Circuit (IC)
• Use: Level shifting and signal buffering
• Characteristics:
  • High-speed CMOS technology
  • 8-bit bidirectional bus interface
  • Non-inverting outputs
  • Wide operating voltage range: 2V to 6V
• Package: SOIC-20
• Essence: The MC74HC245ADTG is a high-performance octal bus transceiver designed for use in various digital applications.
• Packaging/Quantity: Available in tape and reel packaging, with 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
• Propagation Delay: 10 ns (typical)
• Output Drive Capability: ±25mA
• Static Current: 4µA (maximum)

Detailed Pin Configuration

The MC74HC245ADTG has a total of 20 pins. The pin configuration is as follows:

1. OE (Output Enable) - Output control pin
2. A1 - Data input/output pin
3. B1 - Data input/output pin
4. A2 - Data input/output pin
5. B2 - Data input/output pin
6. A3 - Data input/output pin
7. B3 - Data input/output pin
8. A4 - Data input/output pin
9. B4 - Data input/output pin
10. GND (Ground) - Ground reference pin
11. B5 - Data input/output pin
12. A5 - Data input/output pin
13. B6 - Data input/output pin
14. A6 - Data input/output pin
15. B7 - Data input/output pin
16. A7 - Data input/output pin
17. B8 - Data input/output pin
18. A8 - Data input/output pin
19. VCC - Positive power supply pin
20. DIR (Direction Control) - Direction control pin

Functional Features

• Bidirectional data transfer between two buses
• Non-inverting outputs for direct interfacing with CMOS or TTL logic
• High-speed operation suitable for various digital applications
• Wide operating voltage range allows compatibility with different systems
• Output enable pin for easy control of the bus interface

Advantages and Disadvantages

Advantages: - High-speed CMOS technology ensures fast data transfer - Non-inverting outputs simplify interfacing with other logic devices - Wide operating voltage range provides flexibility in system integration - Output enable pin allows efficient control of the bus interface

Disadvantages: - Limited output drive capability may not be suitable for high-current applications - Propagation delay of 10 ns may introduce timing issues in certain scenarios

Working Principles

The MC74HC245ADTG is an octal bus transceiver that facilitates bidirectional data transfer between two buses. It operates based on high-speed CMOS technology, allowing for fast and reliable data transmission. The non-inverting outputs ensure compatibility with various logic devices.

The direction of data flow is controlled by the DIR (Direction Control) pin. When the DIR pin is set to a specific logic level, the data is transferred from one bus to the other accordingly. The OE (Output Enable) pin enables or disables the outputs, providing control over the bus interface.

Detailed Application Field Plans

The MC74HC245ADTG can be used in a wide range of digital applications, including but not limited to:

1. Microcontroller interfacing
2. Data communication systems
3. Industrial automation
4. Automotive electronics
5. Robotics
6. Signal buffering and level shifting

Its high-speed operation, wide operating voltage range, and bidirectional data transfer capability make it suitable for various scenarios where efficient and reliable data transmission is required.

Detailed and Complete Alternative Models

1. SN74HC245N: Similar octal bus transceiver with the same pin configuration and functionality.
2. CD74HC245E: Octal bus transceiver with comparable specifications and performance.
3. 74HCT245: Octal bus transceiver with TTL compatibility and similar features.

These alternative models can be considered based on specific requirements and availability in different regions.