MC74LVX245MG

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Level Shifter and Voltage Translator
• Characteristics: High-speed, low-power, bidirectional voltage level shifter
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Translates logic levels between different voltage domains
• Packaging/Quantity: Available in reels of 2500 pieces

Specifications

• Supply Voltage Range: 2.0V to 3.6V
• Input Voltage Range: -0.5V to VCC + 0.5V
• Output Voltage Range: -0.5V to VCC + 0.5V
• Maximum Input Current: ±10mA
• Maximum Output Current: ±32mA
• Propagation Delay: 4.5ns (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MC74LVX245MG has a total of 20 pins, which are divided into two groups: - Group A (pins 1-10): These pins are used for data input/output and control signals. - Group B (pins 11-20): These pins are used for power supply and ground connections.

Pin configuration:

__ __ OE --| 1 20 |-- VCC DIR --| 2 19 |-- GND A1 --| 3 18 |-- B1 A2 --| 4 17 |-- B2 A3 --| 5 16 |-- B3 A4 --| 6 15 |-- B4 A5 --| 7 14 |-- B5 A6 --| 8 13 |-- B6 A7 --| 9 12 |-- B7 A8 --|10 11 |-- B8 --------

Functional Features

• Bidirectional voltage level shifting: Allows translation between different logic levels.
• High-speed operation: Provides fast data transmission with a propagation delay of only 4.5ns.
• Low-power consumption: Operates at low supply voltages and consumes minimal power.
• Output current protection: Includes current limiting to protect the device from excessive currents.

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various systems. - Fast propagation delay enables high-speed data transfer. - Low-power consumption makes it suitable for battery-powered applications. - Bidirectional functionality simplifies circuit design.

Disadvantages: - Limited output current may not be suitable for driving heavy loads. - Requires careful consideration of input and output voltage levels to prevent damage.

Working Principles

The MC74LVX245MG is designed to shift logic levels between two voltage domains. It operates by receiving input signals from one domain and translating them to the corresponding voltage levels in the other domain. The direction of translation is controlled by the DIR pin. When DIR is set to logic high, the translation is from Group A to Group B, and when DIR is set to logic low, the translation is from Group B to Group A.

Detailed Application Field Plans

The MC74LVX245MG can be used in various applications that require voltage level shifting, such as: 1. Interfacing between microcontrollers operating at different voltage levels. 2. Communication between devices with incompatible logic levels. 3. Bi-directional data transfer between systems with different voltage domains. 4. Level shifting in battery-powered portable devices.

Detailed and Complete Alternative Models

1. SN74LVC245A: Similar bidirectional voltage level shifter with 3.3V to 5V supply voltage range.
2. CD4504B: Hex non-inverting level shifter with wide supply voltage range and high output current capability.
3. TXS0108E: 8-bit bidirectional voltage-level translator with automatic direction sensing.

These alternative models offer similar functionality and can be considered as substitutes for the MC74LVX245MG in different applications.

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