CD74HCT243M

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Translator
• Characteristics: High-Speed, CMOS Technology
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Translates logic levels between different voltage domains
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage: 2V to 6V
• Logic Family: HCT
• Number of Channels: 4
• Input Voltage Levels: TTL Compatible
• Output Voltage Levels: CMOS Compatible
• Propagation Delay: 10 ns (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The CD74HCT243M has a total of 16 pins. The pin configuration is as follows:

1. A1 (Channel 1 Input A)
2. B1 (Channel 1 Input B)
3. Y1 (Channel 1 Output)
4. GND (Ground)
5. A2 (Channel 2 Input A)
6. B2 (Channel 2 Input B)
7. Y2 (Channel 2 Output)
8. VCC (Supply Voltage)
9. A3 (Channel 3 Input A)
10. B3 (Channel 3 Input B)
11. Y3 (Channel 3 Output)
12. NC (No Connection)
13. A4 (Channel 4 Input A)
14. B4 (Channel 4 Input B)
15. Y4 (Channel 4 Output)
16. GND (Ground)

Functional Features

• Translates logic levels from one voltage domain to another
• Provides bidirectional level shifting capability
• Supports TTL input and CMOS output voltage levels
• High-speed operation with low propagation delay
• Wide operating voltage range for flexibility

Advantages and Disadvantages

Advantages

• Enables seamless communication between different logic families
• Supports high-speed data transmission
• Compact SOIC package allows for space-efficient designs
• Wide operating temperature range for versatile applications

Disadvantages

• Limited to 4 channels, may not be suitable for applications requiring more channels
• Requires external power supply for operation

Working Principles

The CD74HCT243M is a logic level translator that operates by receiving input signals from one voltage domain and translating them to the corresponding output signals in another voltage domain. It utilizes CMOS technology to achieve high-speed operation with minimal propagation delay. The device supports bidirectional level shifting, allowing for seamless communication between different logic families.

Detailed Application Field Plans

The CD74HCT243M can be used in various applications where logic level translation is required. Some potential application fields include:

1. Microcontroller interfacing with different voltage peripherals
2. Communication systems involving multiple logic families
3. Industrial automation and control systems
4. Automotive electronics
5. Robotics and IoT devices

Detailed and Complete Alternative Models

1. SN74HCT244: Octal Buffer/Line Driver with 3-State Outputs
2. CD74HC4050: Hex Non-Inverting Buffer/Converter
3. SN74LVC1T45: Single-Bit Dual-Supply Bus Transceiver

These alternative models offer similar functionality and can be considered as substitutes for the CD74HCT243M depending on specific requirements.

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