Encyclopedia Entry: 74ALVT16245DGG,518

Product Information Overview

• Category: Integrated Circuit (IC)
• Use: Signal Buffer/Transceiver
• Characteristics: High-speed, low-power, bidirectional voltage level translation
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: The 74ALVT16245DGG,518 is a high-performance octal bus transceiver designed for voltage level translation between different logic levels. It provides bidirectional communication and buffering capabilities.
• Packaging/Quantity: Available in tape and reel packaging with 2500 units per reel.

Specifications

• Logic Family: ALVT
• Number of Channels: 8
• Input Voltage Range (V_IN): -0.5V to 7V
• Output Voltage Range (V_OUT): -0.5V to 7V
• Operating Voltage (V_CC): 2.3V to 3.6V
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 4.5ns (Max)
• Output Drive Capability: ±24mA
• ESD Protection: Human Body Model > 2000V

Detailed Pin Configuration

The 74ALVT16245DGG,518 has a total of 48 pins, divided into two groups of 24 pins each. Each group corresponds to one direction of data transmission. The pin configuration is as follows:

• Group A (pins 1-24):

  • Pins 1-8: Channel 1 Data I/O (A1-A8)
  • Pins 9-16: Channel 2 Data I/O (B1-B8)
  • Pins 17-24: Channel 3 Data I/O (G1-G8)

• Group B (pins 25-48):

  • Pins 25-32: Channel 4 Data I/O (A1-A8)
  • Pins 33-40: Channel 5 Data I/O (B1-B8)
  • Pins 41-48: Channel 6 Data I/O (G1-G8)

Functional Features

• Bidirectional voltage level translation between two logic levels.
• High-speed operation with low propagation delay.
• Low power consumption, suitable for battery-powered devices.
• Output drive capability allows for driving capacitive loads.
• ESD protection ensures robustness against electrostatic discharges.

Advantages and Disadvantages

Advantages: - Provides efficient voltage level translation in mixed voltage systems. - High-speed operation enables fast data transfer. - Low power consumption extends battery life in portable devices. - Robust ESD protection enhances reliability.

Disadvantages: - Limited to specific voltage ranges (2.3V to 3.6V) for proper operation. - Not suitable for applications requiring higher voltage translations. - May not be cost-effective for low-volume production due to reel packaging.

Working Principles

The 74ALVT16245DGG,518 operates by receiving data from one logic level and translating it to another logic level bidirectionally. It utilizes a combination of MOSFETs and CMOS technology to achieve high-speed and low-power operation. The input signals are level-shifted and buffered before being transmitted to the output pins. The direction of data transmission is controlled by the direction control pins (G1-G8).

Detailed Application Field Plans

The 74ALVT16245DGG,518 finds applications in various fields where voltage level translation is required. Some common application areas include:

1. Microcontrollers and Microprocessors: Facilitates communication between different logic level devices, such as interfacing microcontrollers with peripheral modules.

2. Communication Systems: Enables voltage level translation in communication interfaces like UART, SPI, I2C, etc., allowing compatibility between devices operating at different logic levels.

3. Industrial Automation: Used in industrial control systems to interface between sensors, actuators, and control units operating at different voltage levels.

4. Automotive Electronics: Provides voltage level translation in automotive applications, such as connecting sensors, displays, and control units with different logic levels.

Detailed and Complete Alternative Models

1. SN74LVC245A: Similar octal bus transceiver with 3.3V to 5V voltage translation capability.
2. MC74LVX245: Octal bidirectional transceiver with 2.0V to 3.6V voltage translation range.
3. 74HCT245: Octal bus transceiver with TTL-compatible inputs and outputs, suitable for 5V systems.

These alternative models offer similar functionality but may have different voltage ranges or package options to suit specific application