MC74ACT652DWR2G

Product Overview

• Category: Integrated Circuit
• Use: Digital Logic Level Shifter
• Characteristics: High-speed, Non-inverting, Octal Bus Transceiver
• Package: SOIC-20
• Essence: This integrated circuit is designed to shift logic levels between different voltage domains in digital systems.
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Logic Family: ACT
• Number of Channels: 8
• Input Voltage: 2.0V - 6.0V
• Output Voltage: 2.0V - 6.0V
• Propagation Delay: 5.5 ns (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MC74ACT652DWR2G has a total of 20 pins arranged as follows:

┌───┬───┐ A1 -│1 ├─ 20│- VCC B1 -│2 ├─ 19│- OE# A2 -│3 ├─ 18│- B2 B2 -│4 ├─ 17│- A2 A3 -│5 ├─ 16│- B3 B3 -│6 ├─ 15│- A3 A4 -│7 ├─ 14│- B4 B4 -│8 ├─ 13│- A4 GND-│9 ├─ 12│- B5 DIR-│10 ├─ 11│- A5 └───┴───┘

Functional Features

• Non-inverting bidirectional data transfer between two independent buses
• Wide operating voltage range allows compatibility with various logic families
• High-speed operation for efficient data transmission
• Output enable (OE#) pin for disabling the outputs when not in use
• Direction control (DIR) pin to select the direction of data flow

Advantages and Disadvantages

Advantages

• Provides a reliable solution for level shifting in digital systems
• Supports bidirectional data transfer, allowing flexibility in system design
• High-speed operation ensures efficient data transmission
• Wide operating voltage range enables compatibility with different logic families

Disadvantages

• Limited to 8 channels, may not be suitable for applications requiring more channels
• Propagation delay of 5.5 ns may introduce slight timing issues in high-speed applications

Working Principles

The MC74ACT652DWR2G operates by receiving input signals from one bus and transmitting them to another bus. The direction of data flow is controlled by the DIR pin. When the DIR pin is set to a specific logic level, the data is transferred bidirectionally between the A and B buses. The OE# pin can be used to disable the outputs when not in use, reducing power consumption.

Detailed Application Field Plans

The MC74ACT652DWR2G is commonly used in various digital systems where level shifting is required. Some typical application fields include:

1. Microcontroller interfacing with different voltage peripherals
2. Communication interfaces between devices operating at different voltage levels
3. Data acquisition systems involving multiple sensors with varying voltage requirements
4. Industrial automation systems for signal conversion between different logic families

Alternative Models

Here are some alternative models that provide similar functionality:

1. SN74LVC245A: Octal Bus Transceiver with 3-State Outputs
2. CD4050B: Hex Non-Inverting Buffer/Converter
3. 74HCT125: Quad Bus Buffer Gates with 3-State Outputs

These alternative models can be considered based on specific application requirements and availability.

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