SN74LVCH16244AZQLR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Buffer/Driver
• Characteristics: Low-voltage, high-speed, 16-bit bus transceiver
• Package: 48-pin LQFP (Low-profile Quad Flat Package)
• Essence: Transmits and receives data between two bidirectional buses with minimal delay and distortion
• Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.65V 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: VCC - 0.4V
• Low-level Output Voltage: 0.4V
• Maximum Operating Frequency: 400MHz
• Propagation Delay: 2.7ns (typical)

Detailed Pin Configuration

The SN74LVCH16244AZQLR has a total of 48 pins, which are divided into four groups:

Group A (Pins 1-12)

• Pin 1: OE (Output Enable) input
• Pins 2-9: A1-A8 (Data inputs/output for Port A)
• Pins 10-12: GND (Ground)

Group B (Pins 13-24)

• Pin 13: VCC (Power supply)
• Pins 14-21: B1-B8 (Data inputs/output for Port B)
• Pins 22-24: NC (No connection)

Group C (Pins 25-36)

• Pin 25: DIR (Direction control) input
• Pins 26-33: A9-A16 (Data inputs/output for Port A)
• Pins 34-36: GND (Ground)

Group D (Pins 37-48)

• Pin 37: VCC (Power supply)
• Pins 38-45: B9-B16 (Data inputs/output for Port B)
• Pins 46-48: NC (No connection)

Functional Features

• Bidirectional data flow between Port A and Port B
• Output enable control to disable the outputs
• Direction control to select the direction of data flow
• High-speed operation with minimal delay
• Low-voltage operation for reduced power consumption
• ESD (Electrostatic Discharge) protection on all pins

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient data transmission - Low-voltage operation reduces power consumption - ESD protection ensures reliability in various environments - Bidirectional data flow simplifies circuit design

Disadvantages: - Limited number of data lines (16-bit) - Not suitable for applications requiring a larger number of data lines

Working Principles

The SN74LVCH16244AZQLR is a 16-bit bus transceiver that enables bidirectional data transfer between two buses. The direction of data flow is controlled by the DIR input. When DIR is low, data flows from Port A to Port B, and when DIR is high, data flows from Port B to Port A.

The OE input is used to enable or disable the outputs. When OE is low, the outputs are enabled, allowing data to be transmitted. Conversely, when OE is high, the outputs are disabled, effectively isolating the two buses.

The IC operates at a low voltage range of 1.65V to 3.6V, making it suitable for battery-powered devices and other low-power applications. It also features high-speed operation with a maximum frequency of 400MHz, ensuring efficient data transmission.

Detailed Application Field Plans

The SN74LVCH16244AZQLR is commonly used in various applications, including:

1. Data communication systems
2. Networking equipment
3. Industrial automation
4. Automotive electronics
5. Consumer electronics
6. Medical devices

Its bidirectional data flow capability and high-speed operation make it suitable for applications that require efficient data transfer between two buses.

Detailed and Complete Alternative Models

1. SN74LVC16244A: Similar to SN74LVCH16244AZQLR but operates at a higher voltage range of 1.65V to 5.5V.
2. SN74LVTH16244A: Offers similar functionality but includes voltage translation capabilities for mixed-voltage systems.
3. SN74AVC16244: Provides similar features with enhanced ESD protection and improved noise immunity.

These alternative models offer similar functionalities with slight variations in voltage range, voltage translation capabilities, or additional protection features. The choice of the alternative model depends on specific application requirements.

Word count: 607 words