SN74ALVCH162244DLR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Translator
• Characteristics: High-speed, low-voltage, 16-bit buffer/driver with 3-state outputs
• Package: TSSOP-48
• Essence: Translates signals between different voltage levels
• 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
• Maximum Operating Frequency: 400 MHz
• Number of Channels: 16
• Output Drive Strength: ±24 mA
• Propagation Delay: 2.9 ns (Max)

Detailed Pin Configuration

The SN74ALVCH162244DLR has a total of 48 pins, arranged as follows:

• Pin 1: GND (Ground)
• Pin 2: A1 (Input/Output)
• Pin 3: Y1 (Output)
• Pin 4: A2 (Input/Output)
• Pin 5: Y2 (Output)
• ...
• Pin 46: B15 (Input/Output)
• Pin 47: Y15 (Output)
• Pin 48: VCC (Power Supply)

Functional Features

• Bidirectional voltage level translation between two independent voltage domains
• 3-state outputs for bus-oriented applications
• Supports mixed-mode signal operation on all ports
• Provides both series resistors and diode clamps for ESD protection
• Low power consumption

Advantages and Disadvantages

Advantages: - High-speed operation - Wide supply voltage range - 3-state outputs for bus sharing - ESD protection - Low power consumption

Disadvantages: - Limited number of channels (16) - TSSOP package may be challenging for manual soldering

Working Principles

The SN74ALVCH162244DLR is a logic level translator that allows bidirectional voltage translation between two independent voltage domains. It uses a combination of CMOS and BiCMOS technology to achieve high-speed operation while maintaining low power consumption.

The device features 16 input/output channels, each capable of translating signals from one voltage domain to another. The inputs are compatible with both TTL and CMOS voltage levels, allowing mixed-mode signal operation. The outputs are 3-state, which means they can be actively driven high or low, or placed in a high-impedance state to allow multiple devices to share the same bus.

To protect against electrostatic discharge (ESD), the SN74ALVCH162244DLR includes series resistors and diode clamps on all input and output pins. This ensures reliable operation even in environments with high ESD risks.

Detailed Application Field Plans

The SN74ALVCH162244DLR is commonly used in various applications where voltage level translation is required. Some typical application fields include:

1. Microcontroller interfacing: The IC enables communication between microcontrollers operating at different voltage levels.
2. Memory systems: It facilitates data transfer between memory modules with different voltage requirements.
3. Communication interfaces: It allows signal translation between different voltage domains in serial communication protocols like UART, SPI, and I2C.
4. Industrial automation: The IC is used in control systems to interface sensors and actuators operating at different voltage levels.
5. Automotive electronics: It finds applications in automotive systems where voltage level translation is necessary, such as in infotainment systems and body control modules.

Detailed and Complete Alternative Models

1. TXB0108PWR: 8-bit Bidirectional Voltage-Level Translator with Automatic Direction Sensing
2. PCA9306DCTR: Dual Bidirectional I2C-Bus and SMBus Voltage-Level Translator
3. SN74LVC1T45DBVR: Single-Bit Dual-Supply Bus Transceiver with Configurable Voltage Translation

These alternative models offer similar functionality to the SN74ALVCH162244DLR and can be considered as alternatives based on specific application requirements.

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