SN74LVCH245APWRG4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Level Shifter/Transceiver
• Characteristics: Low-Voltage, High-Speed, Octal Bus Transceiver
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Bi-directional voltage level translator/transceiver
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 1.65V to 3.6V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Maximum Operating Frequency: 400MHz
• Number of Channels: 8
• Input/Output Type: Tri-State
• Propagation Delay: 2.9ns (Max)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The SN74LVCH245APWRG4 has a total of 20 pins, which are assigned as follows:

1. DIR (Direction Control) - Controls the direction of data flow
2. OE (Output Enable) - Enables/disables the outputs
3. A1 - Data input/output for channel 1
4. B1 - Data input/output for channel 1
5. A2 - Data input/output for channel 2
6. B2 - Data input/output for channel 2
7. A3 - Data input/output for channel 3
8. B3 - Data input/output for channel 3
9. A4 - Data input/output for channel 4
10. B4 - Data input/output for channel 4
11. GND (Ground) - Ground reference
12. B5 - Data input/output for channel 5
13. A5 - Data input/output for channel 5
14. B6 - Data input/output for channel 6
15. A6 - Data input/output for channel 6
16. B7 - Data input/output for channel 7
17. A7 - Data input/output for channel 7
18. B8 - Data input/output for channel 8
19. A8 - Data input/output for channel 8
20. VCC (Power Supply) - Positive power supply voltage

Functional Features

• Bi-directional level shifting/translating between two voltage domains
• High-speed operation with low propagation delay
• Tri-state outputs for easy bus sharing
• Wide operating voltage range for compatibility with various systems
• ESD protection on all inputs and outputs

Advantages and Disadvantages

Advantages: - Enables communication between devices operating at different voltage levels - Fast data transmission with minimal delay - Easy integration into existing systems due to tri-state outputs - Protection against electrostatic discharge (ESD)

Disadvantages: - Limited to a maximum operating frequency of 400MHz - Requires careful consideration of voltage compatibility between systems

Working Principles

The SN74LVCH245APWRG4 is designed to facilitate bidirectional voltage level translation between two separate voltage domains. It allows seamless communication between devices operating at different voltage levels, ensuring compatibility and reliable data transfer.

The direction of data flow is controlled by the DIR pin, while the OE pin enables or disables the outputs. The device features eight channels, each consisting of an input (A) and output (B) pair. The tri-state outputs enable multiple devices to share a common bus without interference.

The IC operates within a wide supply voltage range of 1.65V to 3.6V, making it suitable for various applications. It also incorporates ESD protection on all inputs and outputs, safeguarding against potential damage from electrostatic discharge.

Detailed Application Field Plans

The SN74LVCH245APWRG4 finds applications in various fields, including:

1. Microcontroller/Processor Interfaces: It enables communication between microcontrollers or processors operating at different voltage levels, facilitating data exchange and control signals.

2. Communication Systems: The IC is used in communication systems to interface between devices with different voltage requirements, such as UART, SPI, or I2C interfaces.

3. Industrial Automation: It plays a crucial role in industrial automation systems, allowing seamless integration of sensors, actuators, and controllers operating at different voltage levels.

4. Automotive Electronics: The level shifter/transceiver is utilized in automotive electronics for connecting components with varying voltage levels, ensuring reliable data transfer and control.

5. Consumer Electronics: It is employed in consumer electronic devices like smartphones, tablets, and gaming consoles to enable communication between different subsystems operating at different voltages.

Detailed and Complete Alternative Models

1. TXB0108PWR: 8-Bit Bidirectional Voltage-Level Translator
2. PCA9306DCTR: Dual Bidirectional I2C Bus and SMBus Voltage-Level Translator