SN74BCT25244NT

Product Overview

• Category: Integrated Circuit (IC)
• Use: Buffer/Driver
• Characteristics: High-speed, non-inverting, 8-bit tri-state buffer/driver
• Package: 48-pin TSSOP (Thin Shrink Small Outline Package)
• Essence: Provides bidirectional buffering and driving capability for data buses or other digital signals
• Packaging/Quantity: Available in reels of 2500 units

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: 6.5ns (typical)
• Output Current: ±24mA
• Input Capacitance: 3pF (typical)

Detailed Pin Configuration

The SN74BCT25244NT has a total of 48 pins, which are organized as follows:

• Pins 1 to 8: A1 to A8 (Input Data Bus)
• Pins 9 to 16: Y1 to Y8 (Output Data Bus)
• Pins 17 to 24: B1 to B8 (Input/Output Enable Control)
• Pins 25 to 32: GND (Ground)
• Pins 33 to 40: Y9 to Y16 (Output Data Bus)
• Pins 41 to 48: A9 to A16 (Input Data Bus)

Functional Features

• Bidirectional buffering and driving capability
• Non-inverting logic
• Tri-state outputs for bus sharing
• High-speed operation
• TTL-compatible inputs and outputs
• ESD protection on all inputs and outputs

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient data transfer - Tri-state outputs enable bus sharing and reduce contention issues - ESD protection ensures reliability in harsh environments - Wide supply voltage range provides flexibility in various applications

Disadvantages: - Limited output current may not be suitable for driving heavy loads - Higher power consumption compared to some low-power buffer/driver ICs - Larger package size may require more board space

Working Principles

The SN74BCT25244NT is designed to buffer and drive digital signals in a bidirectional manner. It operates based on TTL (Transistor-Transistor Logic) technology, which provides fast switching times and compatibility with other TTL devices. The inputs and outputs are non-inverting, meaning the logic levels of the input signals are preserved at the output.

The tri-state outputs allow multiple devices to share a common bus without causing conflicts. When the input/output enable control pins (B1 to B8) are set to a high logic level, the outputs (Y1 to Y16) are enabled and can actively drive the connected circuitry. Conversely, when the enable control pins are set to a low logic level, the outputs enter a high-impedance state, effectively disconnecting them from the bus.

Detailed Application Field Plans

The SN74BCT25244NT is commonly used in various applications where buffering and driving of digital signals are required. Some specific application fields include:

1. Microprocessor Systems: The IC can be used to interface microprocessors with external memory or peripheral devices, ensuring reliable data transfer and signal integrity.
2. Communication Systems: It can be employed in communication systems to buffer and drive signals between different modules or components, such as between a central processing unit and a display unit.
3. Industrial Automation: The IC finds utility in industrial automation systems, where it can be used to buffer and drive signals between sensors, actuators, and control units.
4. Automotive Electronics: It can be utilized in automotive electronics to interface various components, such as microcontrollers, sensors, and displays, ensuring efficient data transfer and control.

Detailed and Complete Alternative Models

1. SN74BCT244N: 8-bit non-inverting buffer/driver with a different pin configuration (20-pin DIP package).
2. SN74LVC4245APWR: 8-bit dual-supply bus transceiver with voltage level translation capability (20-pin TSSOP package).
3. SN74LVTH16245ADGGR: 16-bit tri-state bus transceiver with 3-state outputs (48-pin TSSOP package).

These alternative models offer similar functionality but may have different specifications, pin configurations, or package options, allowing users to choose the most suitable option for their specific requirements.

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