SN74ALB16245DGGR

Product Overview

• Category: Integrated Circuit
• Use: Signal Buffer/Transceiver
• Characteristics: Bi-directional, 16-bit, non-inverting, 3-state output
• Package: TSSOP-48
• Essence: High-performance bus transceiver with voltage translation capability
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.65V to 3.6V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 2.5ns (Max)
• Output Drive Capability: ±24mA
• ESD Protection: >2000V (Human Body Model)

Detailed Pin Configuration

The SN74ALB16245DGGR has a total of 48 pins, arranged as follows:

Pin 1 ──────────────── Pin 48 . . . . . . Pin 25 ──────────────── Pin 24 Pin 26 ──────────────── Pin 23 . . . . . . Pin 49 ──────────────── Pin 50

Functional Features

• Bi-directional data flow between A and B ports
• Non-inverting buffer/translator
• 3-state outputs for bus sharing
• Voltage translation between different logic levels
• High-speed operation with minimal propagation delay

Advantages and Disadvantages

Advantages: - Allows bidirectional communication between different logic level systems - Provides voltage level shifting capabilities - Supports high-speed data transmission - 3-state outputs enable bus sharing

Disadvantages: - Requires careful consideration of voltage compatibility between systems - Limited to 16-bit data width - Higher power consumption compared to simpler buffer ICs

Working Principles

The SN74ALB16245DGGR is designed to facilitate communication between two systems operating at different logic levels. It acts as a bidirectional buffer and translator, allowing data to flow between the A and B ports. The device uses non-inverting circuitry, ensuring that the input signal is faithfully reproduced at the output.

The 3-state outputs enable multiple devices to share a common bus without interfering with each other. This feature is particularly useful in multi-master systems where several devices need to communicate with a shared bus.

The IC's voltage translation capability allows seamless integration of systems operating at different voltage levels. It ensures that signals from one system are correctly interpreted by the receiving system, even if they operate at different logic levels.

Detailed Application Field Plans

The SN74ALB16245DGGR finds applications in various fields, including:

1. Microcontroller Interfacing: It enables communication between microcontrollers operating at different voltage levels, facilitating data exchange and control signals.

2. Level Shifting: The IC is used to shift voltage levels between different subsystems within electronic devices, ensuring compatibility and reliable operation.

3. Bus Communication: It is employed in bus architectures, such as I2C, SPI, or UART, to enable data transfer between devices operating at different logic levels.

4. Industrial Automation: The IC is utilized in industrial automation systems to interface between sensors, actuators, and control units operating at different voltage levels.

5. Automotive Electronics: It plays a crucial role in automotive electronics, enabling communication between various subsystems, such as engine control units, sensors, and displays.

Detailed and Complete Alternative Models

1. SN74ALVCH16245: Similar to SN74ALB16245DGGR, but operates at a lower voltage range of 1.2V to 3.6V.

2. SN74LVC16245A: Offers similar functionality with improved speed and lower power consumption compared to SN74ALB16245DGGR.

3. SN74LVTH16245A: Provides voltage translation capability with integrated ESD protection for enhanced reliability.

4. SN74HCT245: A non-inverting octal bus transceiver suitable for applications requiring lower data width.

5. SN74LVCC3245A: Offers voltage level shifting capabilities with a smaller package size for space-constrained designs.

These alternative models provide similar functionality and can be considered based on specific application requirements and design constraints.

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