SN74ALVTH16244DL

Product Overview

• Category: Integrated Circuit (IC)
• Use: Buffer/Driver
• Characteristics: High-speed, low-voltage, 16-bit bus transceiver with 3-state outputs
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Transceiver IC for bidirectional data communication between two buses
• Packaging/Quantity: Available in reels of 2500 units

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
• Maximum Propagation Delay: 2.8ns
• Maximum Output Skew: 200ps
• Maximum Quiescent Current: 10μA

Detailed Pin Configuration

The SN74ALVTH16244DL has a total of 48 pins, which are divided into four groups:

Group A (Power and Ground)

• VCC: Positive power supply voltage
• GND: Ground reference

Group B (Input/Output Control)

• OE#: Output Enable input (active low)
• DIR: Direction control input

Group C (Data Inputs/Outputs)

• A1-A16: Data inputs from Bus A
• B1-B16: Data inputs from Bus B
• Y1-Y16: Data outputs to Bus A
• Z1-Z16: Data outputs to Bus B

Group D (Supply Voltage Translation)

• VCCA: Power supply for Bus A
• VCCB: Power supply for Bus B

Functional Features

• Bidirectional data flow between Bus A and Bus B
• Automatic direction control based on the DIR input
• 3-state outputs allow multiple devices to share the same bus
• High-speed operation with minimal propagation delay
• Low quiescent current consumption for power efficiency

Advantages and Disadvantages

Advantages

• Wide supply voltage range allows compatibility with various systems
• High-speed operation enables efficient data transfer
• 3-state outputs facilitate bus sharing among multiple devices
• Low quiescent current minimizes power consumption

Disadvantages

• Limited number of data lines (16-bit)
• Requires external control signals for direction and output enable

Working Principles

The SN74ALVTH16244DL is a bidirectional buffer/driver IC that facilitates communication between two buses, referred to as Bus A and Bus B. The direction of data flow is controlled by the DIR input signal. When DIR is high, data flows from Bus A to Bus B, and when DIR is low, data flows from Bus B to Bus A.

The OE# input signal is used to enable or disable the outputs. When OE# is low, the outputs are active, allowing data transmission. Conversely, when OE# is high, the outputs are in a high-impedance state, effectively disconnecting the IC from the buses.

The IC operates on a supply voltage range of 1.65V to 3.6V, making it compatible with a wide range of systems. It features high-speed operation with minimal propagation delay, ensuring efficient data transfer. The 3-state outputs allow multiple devices to share the same bus without interfering with each other.

Detailed Application Field Plans

The SN74ALVTH16244DL is commonly used in various applications where bidirectional data communication between two buses is required. Some typical application fields include:

1. Microprocessor Systems: Facilitating data transfer between the microprocessor and external memory or peripheral devices.
2. Communication Interfaces: Enabling data exchange between different communication protocols, such as UART, SPI, or I2C.
3. Data Acquisition Systems: Transferring data between sensors, analog-to-digital converters, and digital processing units.
4. Industrial Automation: Connecting various control modules and devices in industrial automation systems.
5. Automotive Electronics: Supporting data communication between different automotive subsystems, such as engine control units, infotainment systems, and body control modules.

Detailed and Complete Alternative Models

1. SN74ALVTH162244DL: Similar to SN74ALVTH16244DL but with 24-bit bus transceiver capability.
2. SN74LVC16244ADGGR: 16-bit low-voltage CMOS buffer/driver with 3-state outputs.
3. MC74VHC1GT125DF1G: Single gate buffer with 3-state output, suitable for low-power applications.

These alternative models offer similar functionality and can be considered as replacements for the SN74ALVTH16244DL based on specific requirements and system constraints.

In conclusion, the SN74ALVTH16244DL is a high-speed, low-voltage 16-bit bus