SN74LVCH245ADBRE4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Level Shifter and Bus Transceiver
• Characteristics: Low-Voltage, High-Speed, Octal Bus Transceiver
• Package: SSOP (Shrink Small Outline Package)
• Essence: Bidirectional Voltage-Level Translation
• 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
• High-Level Input Voltage: 0.7 x VCC to VCC
• Low-Level Input Voltage: 0V to 0.8 x VCC
• High-Level Output Voltage: 0.9 x VCC to VCC
• Low-Level Output Voltage: 0V to 0.1 x VCC
• Maximum Operating Frequency: 400MHz
• Number of Channels: 8

Detailed Pin Configuration

The SN74LVCH245ADBRE4 has a total of 20 pins. The pin configuration is as follows:

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

Functional Features

• Bidirectional voltage-level translation between two different voltage domains.
• Allows interfacing between devices operating at different voltage levels.
• Provides a seamless data transfer between systems with different voltage requirements.
• Supports both push-pull and open-drain output configurations.
• Low power consumption and high-speed operation.

Advantages and Disadvantages

Advantages: - Enables communication between devices with different voltage levels. - High-speed operation allows for efficient data transfer. - Low power consumption helps in reducing overall system power requirements.

Disadvantages: - Limited to a maximum operating frequency of 400MHz. - May require additional external components for certain applications.

Working Principles

The SN74LVCH245ADBRE4 is designed to facilitate bidirectional voltage-level translation. It operates by monitoring the input voltage levels and translating them to the appropriate output voltage levels based on the direction control input. The device uses a combination of MOSFETs and logic circuitry to achieve this voltage translation.

Detailed Application Field Plans

The SN74LVCH245ADBRE4 finds applications in various fields, including:

1. Microcontroller Interfacing: It enables communication between microcontrollers operating at different voltage levels.
2. Sensor Networks: Facilitates data exchange between sensors and microcontrollers with varying voltage requirements.
3. Industrial Automation: Allows for seamless integration of different control systems operating at different voltage levels.
4. Consumer Electronics: Enables communication between devices such as smartphones, tablets, and peripherals with different voltage specifications.

Detailed and Complete Alternative Models

1. SN74LVC245A: Similar functionality but operates at a higher supply voltage range (1.65V to 5.5V).
2. SN74LVCH244A: Octal buffer/line driver with similar voltage-level translation capabilities.
3. SN74LVC4245A: Dual-supply translating transceiver with additional direction control features.

These alternative models provide similar functionality to the SN74LVCH245ADBRE4 but may have different specifications and pin configurations.

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