SN74ACT245PWRG4

Product Overview

• Category: Integrated Circuit
• Use: Level Shifter/Transceiver
• Characteristics: High-speed, low-power, non-inverting
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Bi-directional level shifter/transceiver
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2 V to 6 V
• Input Voltage Range: 0 V to VCC
• Output Voltage Range: 0 V to VCC
• Operating Temperature Range: -40°C to +85°C
• Number of Channels: 8
• Logic Family: ACT
• Logic Type: CMOS
• Propagation Delay: 5.5 ns (typical)
• Output Drive Capability: ±24 mA

Detailed Pin Configuration

The SN74ACT245PWRG4 has a total of 20 pins, which are assigned as follows:

1. DIR (Direction Control) - Controls the direction of data flow.
2. OE (Output Enable) - Enables or disables the outputs.
3. A1-A8 (Input/Output) - Bi-directional data lines.
4. B1-B8 (Input/Output) - Bi-directional data lines.
5. GND (Ground) - Common ground reference.
6. VCC (Power Supply) - Positive power supply voltage.

Functional Features

• Bi-directional level shifting: Allows bidirectional data transfer between two systems operating at different voltage levels.
• Non-inverting: The input and output signals have the same logic polarity.
• High-speed operation: Provides fast data transmission with a propagation delay of only 5.5 ns.
• Low-power consumption: Operates efficiently with a supply voltage range of 2 V to 6 V.
• Output drive capability: Can drive up to ±24 mA of current, ensuring reliable signal transmission.

Advantages and Disadvantages

Advantages: - Enables seamless communication between systems with different voltage levels. - Non-inverting nature simplifies the interface design. - High-speed operation allows for quick data transfer. - Low-power consumption helps conserve energy. - Robust output drive capability ensures signal integrity.

Disadvantages: - Limited to 8 channels, which may not be sufficient for certain applications requiring more data lines. - Requires careful consideration of voltage compatibility to prevent damage to connected devices.

Working Principles

The SN74ACT245PWRG4 is a bidirectional level shifter/transceiver that facilitates data transfer between two systems operating at different voltage levels. It utilizes CMOS technology to achieve high-speed operation while consuming minimal power. The direction of data flow is controlled by the DIR pin, and the outputs can be enabled or disabled using the OE pin. The device features non-inverting logic, meaning the input and output signals have the same logic polarity. This simplifies the interface design and ensures compatibility between systems. The SN74ACT245PWRG4 operates within a wide supply voltage range of 2 V to 6 V and provides robust output drive capability to ensure reliable signal transmission.

Detailed Application Field Plans

The SN74ACT245PWRG4 finds applications in various fields where bidirectional level shifting is required. Some potential application areas include:

1. Communication Systems: Facilitating data exchange between devices operating at different voltage levels, such as microcontrollers, sensors, and displays.
2. Industrial Automation: Enabling communication between control systems and peripheral devices with varying voltage requirements.
3. Automotive Electronics: Supporting data transfer between different subsystems within a vehicle, such as infotainment systems, engine control units, and sensors.
4. Consumer Electronics: Allowing interconnection between devices like smartphones, tablets, and peripherals with different voltage levels.
5. Internet of Things (IoT): Enabling communication between IoT devices operating at different voltage levels, enhancing interoperability.

Detailed and Complete Alternative Models

1. SN74ACT244PWRG4: Octal buffer/line driver with 3-state outputs.
2. SN74ACT541PWRG4: Octal buffer/line driver with 3-state outputs and increased output drive capability.
3. SN74ACT573PWRG4: Octal transparent latch with 3-state outputs.
4. SN74ACT14PWRG4: Hex inverter with Schmitt-trigger inputs.
5. SN74ACT86PWRG4: Quad 2-input XOR gate.

These alternative models offer similar functionality to the SN74ACT245PWRG4 and can be considered based on specific application requirements.

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