Encyclopedia Entry: 74ACT715-RSC

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Shifter
• Characteristics: High-speed, low-power consumption
• Package: SOP (Small Outline Package)
• Essence: Translates logic levels between different voltage domains
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Logic Family: ACT
• Number of Channels: 1
• Input Voltage Range: 2.0V to 5.5V
• Output Voltage Range: 4.5V to 5.5V
• Propagation Delay: 3.5ns (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The 74ACT715-RSC IC has the following pin configuration:

___________ | | VCC|1 16|GND AIN|2 15|BOUT BIN|3 14|AOUT OE |4 13|BIAS GND|5 12|NC NC |6 11|NC NC |7 10|NC NC |8 9|NC |___________|

Functional Features

• Translates logic levels from a lower voltage domain (AIN and BIN) to a higher voltage domain (AOUT and BOUT).
• Supports bidirectional level shifting.
• Enables interfacing between devices operating at different voltage levels.
• Provides high-speed signal translation with minimal propagation delay.

Advantages

• Wide input voltage range allows compatibility with various logic families.
• Low power consumption makes it suitable for battery-powered applications.
• Small package size (SOP) enables space-efficient designs.
• Bidirectional capability eliminates the need for separate level shifters.

Disadvantages

• Limited to a single channel, which may require multiple ICs for multi-channel applications.
• Output voltage range is restricted to 4.5V to 5.5V, limiting compatibility with lower voltage systems.

Working Principles

The 74ACT715-RSC utilizes a combination of MOSFETs and CMOS technology to achieve logic level shifting. The input signals are translated using a voltage divider network and level-shifting circuitry. The output signals are then amplified to the desired voltage levels. The IC also incorporates internal biasing to ensure proper operation within the specified voltage ranges.

Detailed Application Field Plans

The 74ACT715-RSC is commonly used in various applications that require interfacing between different logic families or voltage domains. Some typical application fields include: - Microcontroller interfacing with peripheral devices - Communication interfaces (UART, SPI, I2C) between devices operating at different voltages - Level translation in mixed-signal systems - Voltage level conversion in battery-powered devices

Alternative Models

For level shifting requirements, alternative models to consider include: - 74LVC245: Octal Bus Transceiver with Voltage Translation - TXB0108: 8-Bit Bidirectional Voltage-Level Translator - SN74LVC1T45: Single-Bit Dual-Supply Bus Transceiver

These alternatives offer similar functionality and can be chosen based on specific application requirements.

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