SN74HCT245NSR

Product Overview

• Category: Integrated Circuit
• Use: Level Shifter/Transceiver
• Characteristics: High-speed, CMOS technology, 8-bit bidirectional data transmission
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Transfers data between different voltage levels in digital systems
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Maximum Data Rate: 30 MHz
• Number of Channels: 8
• Input/Output Type: Tri-State

Detailed Pin Configuration

1. OE (Output Enable)
2. DIR (Direction Control)
3. A1 (Data Input/Output)
4. B1 (Data Input/Output)
5. A2 (Data Input/Output)
6. B2 (Data Input/Output)
7. A3 (Data Input/Output)
8. B3 (Data Input/Output)
9. GND (Ground)
10. B4 (Data Input/Output)
11. A4 (Data Input/Output)
12. B5 (Data Input/Output)
13. A5 (Data Input/Output)
14. B6 (Data Input/Output)
15. A6 (Data Input/Output)
16. VCC (Supply Voltage)
17. B7 (Data Input/Output)
18. A7 (Data Input/Output)
19. B8 (Data Input/Output)
20. A8 (Data Input/Output)

Functional Features

• Bidirectional data transfer between two voltage domains
• Automatic direction control based on DIR pin
• Tri-State outputs for easy bus sharing
• High-speed operation suitable for various digital systems
• CMOS technology ensures low power consumption

Advantages and Disadvantages

Advantages

• Supports bidirectional data transmission
• Wide supply voltage range allows compatibility with different systems
• Tri-State outputs enable efficient bus sharing
• High-speed operation for time-critical applications
• Low power consumption due to CMOS technology

Disadvantages

• Limited maximum data rate of 30 MHz
• Not suitable for applications requiring higher data rates
• Only supports 8-bit data transmission

Working Principles

The SN74HCT245NSR is a level shifter/transceiver integrated circuit that facilitates the transfer of data between two voltage domains in digital systems. It operates by receiving data from one domain and transmitting it to the other, while automatically controlling the direction of data flow based on the DIR pin.

The device features eight bidirectional channels, allowing simultaneous transmission of 8-bit data. The Tri-State outputs enable multiple devices to share a common bus, enhancing system efficiency.

The SN74HCT245NSR utilizes CMOS technology, which ensures high-speed operation and low power consumption. It can operate within a wide supply voltage range of 4.5V to 5.5V, making it compatible with various digital systems.

Detailed Application Field Plans

The SN74HCT245NSR is commonly used in digital systems where data needs to be transferred between different voltage levels. Some specific application fields include:

1. Microcontroller interfacing: The IC enables communication between microcontrollers operating at different voltage levels.
2. Sensor networks: It facilitates data exchange between sensors and microcontrollers in IoT applications.
3. Communication systems: The device is utilized in level shifting circuits for reliable data transmission between different communication modules.
4. Industrial automation: It plays a crucial role in connecting various components of industrial automation systems, such as PLCs and sensors.

Detailed and Complete Alternative Models

1. SN74HCT245D: DIP (Dual Inline Package) version of the SN74HCT245NSR.
2. 74HCT245: Similar functionality from other manufacturers, available in various packages.
3. MC74HCT245A: Alternative model with enhanced ESD protection features.
4. CD74HCT245E: Another alternative model in a different package option.

These alternative models offer similar functionality to the SN74HCT245NSR and can be used as replacements based on specific requirements.

In conclusion, the SN74HCT245NSR is a versatile level shifter/transceiver integrated circuit that enables bidirectional data transfer between different voltage domains. Its high-speed operation, low power consumption, and compatibility with various digital systems make it suitable for a wide range of applications in different industries.