Encyclopedia Entry: 74LVC245ABQ-Q100X

Product Overview

• Category: Integrated Circuit (IC)
• Use: Level Shifter and Bus Transceiver
• Characteristics: Low Voltage CMOS, Octal Bidirectional Transceiver, 3-State Outputs
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: The 74LVC245ABQ-Q100X is a high-performance level shifter and bus transceiver IC designed for low voltage applications. It provides bidirectional voltage level translation between different logic levels, making it suitable for interfacing between devices operating at different voltage levels.
• Packaging/Quantity: The 74LVC245ABQ-Q100X is typically available in tape and reel packaging with a quantity of 2500 units per reel.

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• High-Level Input Voltage: 2V to VCC + 0.5V
• Low-Level Input Voltage: -0.5V to 0.8V
• High-Level Output Voltage: VCC - 0.5V
• Low-Level Output Voltage: 0.5V
• Maximum Operating Frequency: 400 MHz
• Number of Channels: 8
• Output Drive Capability: ±24 mA
• Propagation Delay: 4.3 ns (Max) at 3.3V
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The 74LVC245ABQ-Q100X has a total of 20 pins, which are assigned specific functions as follows:

• Pin 1: OE (Output Enable)
• Pin 2: A1 (Data Input/Output)
• Pin 3: B1 (Data Input/Output)
• Pin 4: GND (Ground)
• Pin 5: B2 (Data Input/Output)
• Pin 6: A2 (Data Input/Output)
• Pin 7: VCC (Supply Voltage)
• Pin 8: DIR (Direction Control)
• Pin 9: B3 (Data Input/Output)
• Pin 10: A3 (Data Input/Output)
• Pin 11: B4 (Data Input/Output)
• Pin 12: A4 (Data Input/Output)
• Pin 13: B5 (Data Input/Output)
• Pin 14: A5 (Data Input/Output)
• Pin 15: GND (Ground)
• Pin 16: A6 (Data Input/Output)
• Pin 17: B6 (Data Input/Output)
• Pin 18: VCC (Supply Voltage)
• Pin 19: B7 (Data Input/Output)
• Pin 20: A7 (Data Input/Output)

Functional Features

• Bidirectional voltage level translation between different logic levels.
• 3-state outputs for bus-oriented applications.
• High-speed operation with a maximum frequency of 400 MHz.
• Low power consumption and wide supply voltage range.
• ESD protection exceeding 2000V.

Advantages and Disadvantages

Advantages: - Provides seamless interfacing between devices operating at different voltage levels. - Supports bidirectional communication. - High-speed operation allows for efficient data transfer. - Wide supply voltage range enables compatibility with various systems. - Offers ESD protection, ensuring device reliability.

Disadvantages: - May require additional external components for specific applications. - Limited number of channels (8) compared to some other transceiver ICs.

Working Principles

The 74LVC245ABQ-Q100X operates by using a combination of CMOS technology and level shifting techniques. It translates the logic levels of input signals to the desired voltage level, allowing for proper communication between devices operating at different voltage levels. The direction control pin (DIR) determines the direction of data flow, while the output enable pin (OE) enables or disables the outputs.

Detailed Application Field Plans

The 74LVC245ABQ-Q100X finds applications in various fields where voltage level translation and bidirectional communication are required. Some common application areas include: - Interfacing between microcontrollers and peripheral devices. - Communication between systems operating at different voltage levels. - Level shifting in battery-powered devices. - Industrial automation and control systems. - Automotive electronics. - Consumer electronics.

Detailed and Complete Alternative Models

• SN74LVC245A: Similar octal bus transceiver with 3-state outputs from Texas Instruments.
• MC74LVX245: Octal bus transceiver with 3-state outputs from ON Semiconductor.
• CD74HCT245: Octal bus transceiver with non-inverting 3-state outputs from Texas Instruments.
• 74HC245: Octal bus transceiver with 3-state outputs from various manufacturers.

Note: This is not