SN74ALVC16244ADLG4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Buffer/Driver
• Characteristics: High-speed, low-voltage, 16-bit bus transceiver
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Transmits and receives data between different parts of a digital system
• Packaging/Quantity: Reel packaging, 2500 units per reel

Specifications

• Logic Family: ALVC (Advanced Low-Voltage CMOS)
• Number of Bits: 16
• Supply Voltage Range: 1.65V to 3.6V
• Input/Output Compatibility: TTL/CMOS
• Output Drive Strength: ±24mA
• Propagation Delay: 2.5ns (max)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The SN74ALVC16244ADLG4 has a total of 48 pins, which are divided into four groups:

• Group A (pins 1-12): Data inputs/output for Port A
• Group B (pins 13-24): Data inputs/output for Port B
• Group C (pins 25-36): Control inputs for Port A
• Group D (pins 37-48): Control inputs for Port B

Each pin serves a specific function, such as data input, data output, or control input.

Functional Features

• Bidirectional Data Transmission: Allows data to be transmitted in both directions between Port A and Port B.
• 3-State Outputs: The outputs can be disabled, effectively disconnecting the device from the bus.
• Bus Hold: Maintains the last valid logic level on the inputs when they are not being driven.
• ESD Protection: Provides protection against electrostatic discharge, ensuring reliability in harsh environments.

Advantages and Disadvantages

Advantages: - High-speed operation enables efficient data transfer. - Low-voltage compatibility allows integration with various digital systems. - 3-state outputs provide flexibility in bus sharing scenarios. - ESD protection enhances reliability.

Disadvantages: - Limited to 16-bit data transmission, may not be suitable for larger bus sizes. - Requires external control signals for proper operation. - Sensitive to voltage fluctuations, necessitating stable power supply.

Working Principles

The SN74ALVC16244ADLG4 acts as a buffer/driver for bidirectional data transmission. It receives data from Port A and transmits it to Port B, or vice versa. The direction of data flow is controlled by the control inputs. When the device is not actively transmitting data, the outputs can be disabled using the control inputs, effectively disconnecting the device from the bus. The bus hold feature ensures that the last valid logic level on the inputs is maintained when they are not being driven.

Detailed Application Field Plans

The SN74ALVC16244ADLG4 is commonly used in various digital systems where bidirectional data transmission is required. Some specific application fields include:

1. Microcontrollers: Enables communication between different parts of the microcontroller, such as memory, peripherals, and input/output ports.
2. Communication Systems: Facilitates data exchange between different modules in communication systems, such as routers, switches, and network interfaces.
3. Industrial Automation: Used in industrial control systems to transmit data between sensors, actuators, and control units.
4. Automotive Electronics: Enables data transfer between different components in automotive systems, including engine control units, infotainment systems, and body control modules.

Detailed and Complete Alternative Models

1. SN74ALVC16245ADGGR: Similar to SN74ALVC16244ADLG4 but with 8-bit data transmission capability.
2. SN74LVC16244ADGGR: Low-voltage version of SN74ALVC16244ADLG4, compatible with a supply voltage range of 1.65V to 3.3V.
3. SN74HCT16244ADGGR: High-speed CMOS version of SN74ALVC16244ADLG4, compatible with a wider supply voltage range of 4.5V to 5.5V.

These alternative models offer different features and specifications, allowing users to choose the most suitable option for their specific requirements.

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