TC74ACT245FTEL

Product Overview

• Category: Integrated Circuit (IC)
• Use: Level shifting and signal buffering
• Characteristics: High-speed, low-power consumption
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Bi-directional octal bus transceiver
• Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Supply Voltage: 2.0V to 6.0V
• Input Voltage: 0V to VCC
• Output Voltage: 0V to VCC
• Operating Temperature: -40°C to +85°C
• Propagation Delay: 5.5ns (typical)
• Output Drive Capability: ±24mA

Detailed Pin Configuration

The TC74ACT245FTEL has a total of 20 pins, which are assigned as follows:

1. OE (Output Enable) - Active Low Output Enable Input
2. DIR (Direction Control) - Direction Control Input
3. A1-A8 (Data Bus) - Bi-directional Data Bus
4. GND (Ground) - Ground Reference
5. B1-B8 (Data Bus) - Bi-directional Data Bus
6. VCC (Power Supply) - Positive Power Supply

Functional Features

• Bi-directional data transfer between two buses
• Automatic direction control based on DIR input
• Output enable/disable for bus isolation
• High-speed operation with minimal propagation delay
• Low power consumption for energy efficiency

Advantages and Disadvantages

Advantages

• Fast and efficient data transfer
• Low power consumption
• Easy integration into existing systems
• Reliable performance in various environments

Disadvantages

• Limited voltage range (2.0V to 6.0V)
• Propagation delay may affect real-time applications

Working Principles

The TC74ACT245FTEL is a bi-directional octal bus transceiver that allows for the transfer of data between two buses with different voltage levels. The direction of data flow is controlled by the DIR input, which determines whether the data is transmitted from A1-A8 to B1-B8 or vice versa.

When the OE input is low, the outputs are enabled and the data is transferred between the buses. Conversely, when the OE input is high, the outputs are disabled, isolating the two buses.

The IC operates at high speed with minimal propagation delay, ensuring efficient data transfer. It also features low power consumption, making it suitable for battery-powered devices.

Detailed Application Field Plans

The TC74ACT245FTEL is commonly used in various applications, including:

1. Microcontroller interfacing
2. Level shifting in communication systems
3. Signal buffering in industrial automation
4. Data transmission in automotive electronics
5. Interface conversion in consumer electronics

Its versatility and reliability make it an ideal choice for applications requiring bi-directional data transfer and level shifting.

Detailed and Complete Alternative Models

1. SN74LV245A - Bi-directional octal bus transceiver with similar specifications and pin configuration.
2. MC74HC245AN - Octal bus transceiver with higher voltage range (2.0V to 6.0V) and different package type (DIP).

These alternative models offer similar functionality and can be considered as substitutes for the TC74ACT245FTEL based on specific requirements and availability.

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