SN74LVT162245DL

Product Overview

• Category: Integrated Circuit
• Use: Level Shifter/Transceiver
• Characteristics: Low Voltage, 16-Bit Bus Transceiver with 3-State Outputs
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: This integrated circuit is designed to provide bidirectional level shifting and voltage translation between different logic levels in digital systems.
• Packaging/Quantity: Available in reels of 2500 units.

Specifications

• Logic Family: LVT (Low Voltage TTL)
• Number of Bits: 16
• Supply Voltage Range: 2.7V to 3.6V
• High-Level Input Voltage: 2.0V to VCC + 0.5V
• Low-Level Input Voltage: -0.5V to 0.8V
• High-Level Output Voltage: 2.4V (min) at IOH = -12mA
• Low-Level Output Voltage: 0.4V (max) at IOL = 24mA
• Maximum Operating Frequency: 100MHz
• Propagation Delay: 3.9ns (max) at 3.3V, 25°C
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The SN74LVT162245DL has a total of 48 pins, which are divided into two groups of 24 pins each. The pin configuration is as follows:

• Group A (pins 1-24):

  • A1-A16: Data Inputs/Outputs for Port A
  • OEAB: Output Enable for Port A
  • DIR: Direction Control
  • GND: Ground
  • VCC: Power Supply

• Group B (pins 25-48):

  • B1-B16: Data Inputs/Outputs for Port B
  • OEBA: Output Enable for Port B
  • GND: Ground
  • VCC: Power Supply

Functional Features

• Bidirectional voltage translation between two logic levels.
• 3-state outputs allow multiple devices to share a common bus.
• Direction control pin allows switching between input and output modes.
• Low voltage operation suitable for battery-powered applications.
• High-speed operation with low propagation delay.

Advantages and Disadvantages

Advantages: - Provides level shifting capability in mixed voltage systems. - Allows interfacing between different logic families. - Supports bidirectional communication. - Compact TSSOP package saves board space.

Disadvantages: - Limited to a maximum operating frequency of 100MHz. - Requires careful consideration of voltage levels and compatibility.

Working Principles

The SN74LVT162245DL operates by receiving data inputs from one side (Port A) and translating them to the desired logic level on the other side (Port B). The direction control pin determines the flow of data, allowing bidirectional communication. When the output enable pins are active, the device enters a high-impedance state, enabling multiple devices to share the same bus without interference.

Detailed Application Field Plans

The SN74LVT162245DL is commonly used in various digital systems where voltage translation is required. Some application fields include:

1. Microcontroller Interfacing: It enables communication between microcontrollers operating at different voltage levels.

2. Memory Interfaces: It facilitates data transfer between memory modules with varying voltage requirements.

3. Communication Systems: It serves as a level shifter in serial communication interfaces like UART, SPI, or I2C.

4. Industrial Automation: It finds applications in PLCs (Programmable Logic Controllers) and other industrial control systems.

5. Consumer Electronics: It is utilized in devices such as smartphones, tablets, and gaming consoles for voltage translation between different components.

Detailed and Complete Alternative Models

1. SN74LVC16245A: Similar to SN74LVT162245DL but operates at a lower voltage range of 1.65V to 3.6V.
2. SN74LVTH16245A: Offers higher drive strength and operates at a wider temperature range (-40°C to 125°C).
3. SN74AVC16245: Provides voltage translation with automatic direction sensing and integrated ESD protection.

These alternative models offer similar functionality but may have variations in voltage ranges, speed, or additional features.

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