74LVX245MTCX

Product Overview

• Category: Integrated Circuit (IC)
• Use: Level Shifter/Transceiver
• Characteristics: High-speed, low-power, bidirectional voltage level translation
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Transfers digital signals between different voltage domains
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Maximum Operating Frequency: 400MHz
• Number of Channels: 8
• Input/Output Type: Tri-State Non-Inverting
• Propagation Delay: 4.3ns (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The 74LVX245MTCX has a total of 20 pins arranged in a TSSOP package. The pin configuration is as follows:

+-------------------+ OE --|1 20|-- VCC A1~A8 -|2 19|-- B1~B8 GND --|3 18|-- DIR B1~B8 -|4 17|-- A1~A8 DIR --|5 16|-- GND VCC --|6 15|-- OE B1~B8 -|7 14|-- A1~A8 A1~A8 -|8 13|-- GND GND --|9 12|-- B1~B8 DIR --|10 11|-- OE +-------------------+

Functional Features

• Bidirectional voltage level translation between two voltage domains
• Non-inverting tri-state outputs for easy interfacing with other devices
• High-speed operation suitable for applications requiring fast data transfer
• Low-power consumption for energy-efficient designs
• ESD protection on all inputs and outputs for enhanced reliability

Advantages and Disadvantages

Advantages

• Wide supply voltage range allows compatibility with various systems
• Fast propagation delay enables high-speed data transmission
• Tri-state outputs facilitate bus sharing and multi-master configurations
• ESD protection ensures robustness against electrostatic discharge

Disadvantages

• Limited number of channels (8) may not be sufficient for complex systems requiring more connections
• TSSOP package may require careful handling during assembly due to its small size

Working Principles

The 74LVX245MTCX is a bidirectional level shifter/transceiver IC that allows the transfer of digital signals between two voltage domains. It operates by translating the logic levels of the input signals to the corresponding levels of the output signals, enabling communication between devices operating at different voltage levels.

The direction of signal flow is controlled by the DIR pin. When DIR is set to logic HIGH, the A-side becomes the input and the B-side becomes the output. Conversely, when DIR is set to logic LOW, the B-side becomes the input and the A-side becomes the output.

The OE (Output Enable) pin is used to enable or disable the outputs. When OE is set to logic HIGH, the outputs are in a high-impedance state (tri-state), allowing other devices to drive the bus. When OE is set to logic LOW, the outputs actively drive the bus.

Detailed Application Field Plans

The 74LVX245MTCX is commonly used in various applications where voltage level translation is required. Some typical application fields include:

1. Microcontroller interfacing: Allows communication between microcontrollers operating at different voltage levels.
2. Bus level shifting: Facilitates data transfer between buses with different voltage requirements, such as I2C, SPI, or UART.
3. Logic level conversion: Enables compatibility between devices with different logic voltage levels, such as 3.3V and 5V systems.
4. Battery-powered devices: Low-power operation makes it suitable for portable electronics, IoT devices, and battery-powered applications.

Detailed and Complete Alternative Models

• SN74LVC245A: Similar bidirectional level shifter/transceiver IC from Texas Instruments.
• MC74LVX245: Another alternative from ON Semiconductor with comparable specifications.
• CD74HCT245: High-speed CMOS level shifter IC from Texas Instruments.

These alternative models offer similar functionality and can be considered as replacements for the 74LVX245MTCX based on specific application requirements.

In conclusion, the 74LVX245MTCX is a versatile level shifter/transceiver IC that provides bidirectional voltage level translation between different voltage domains. Its high-speed operation, low-power consumption