Encyclopedia Entry: 74ALVC162240TX

Product Information Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Translator
• Characteristics: High-speed, low-voltage, bidirectional translation between two voltage levels
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Translates signals between different voltage levels while maintaining signal integrity
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Logic Family: ALVC
• Number of Channels: 16
• Input Voltage Range (V_CC): 1.2V - 3.6V
• Output Voltage Range (V_CCA, V_CCB): 1.2V - 3.6V
• Propagation Delay (t_pd): 2.5 ns (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The 74ALVC162240TX has a total of 48 pins, distributed as follows:

• Pins 1-8: Channel A Data Inputs/Outputs (D0-D7)
• Pins 9-16: Channel B Data Inputs/Outputs (D8-D15)
• Pins 17-24: Channel A Output Enable (OE) Inputs
• Pins 25-32: Channel B Output Enable (OE) Inputs
• Pins 33-40: Channel A Input Enable (IE) Inputs
• Pins 41-48: Channel B Input Enable (IE) Inputs

Functional Features

• Bidirectional voltage level translation between two voltage domains
• Supports high-speed data transmission with minimal propagation delay
• Provides separate output enable and input enable controls for each channel
• Supports hot insertion and removal of devices without causing bus contention

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient data transfer between different voltage domains - Low-voltage operation makes it suitable for use in low-power applications - Bidirectional translation simplifies circuit design and reduces component count - Separate enable controls provide flexibility in managing data flow

Disadvantages: - Limited voltage range (1.2V - 3.6V) may not be suitable for all applications requiring level translation - Propagation delay of 2.5 ns may introduce timing issues in certain high-speed applications

Working Principles

The 74ALVC162240TX utilizes a combination of MOSFETs and CMOS technology to achieve bidirectional voltage level translation. It employs a voltage divider network and level-shifting circuitry to ensure proper signal translation while maintaining signal integrity.

When the input signal from one voltage domain is applied, the IC translates it to the corresponding voltage level of the other domain. The output enable and input enable controls allow selective data transmission in both directions, preventing bus contention and ensuring reliable communication.

Detailed Application Field Plans

The 74ALVC162240TX is commonly used in various applications that require voltage level translation, such as:

1. Microcontroller Interfacing: Enables communication between microcontrollers operating at different voltage levels.
2. Memory Interfaces: Facilitates data transfer between memory modules with varying voltage requirements.
3. Communication Systems: Allows for signal translation between different logic families or communication protocols.
4. Industrial Automation: Used in control systems where interfacing between different voltage domains is necessary.
5. Consumer Electronics: Enables compatibility between devices operating at different voltage levels, such as smartphones and peripherals.

Detailed and Complete Alternative Models

1. 74LVC162240A: Similar functionality with a wider voltage range (1.65V - 5.5V).
2. SN74AVC162240: Offers similar features with a different pin configuration and package option (SSOP).

(Note: The alternative models mentioned above are just examples and not an exhaustive list.)

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