SN74AXCH8T245PWR

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Level Shifting and Voltage Translation
• Characteristics: Bidirectional, Eight-Bit, Dual-Supply Bus Transceiver
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Facilitates communication between two systems operating at different voltage levels
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.2V to 3.6V
• Logic Voltage Levels: 1.2V to 3.6V
• Input/Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Output Drive Capability: ±12mA
• Propagation Delay: 4.5ns (Max) at 3.3V
• ESD Protection: Human Body Model > 2000V

Detailed Pin Configuration

The SN74AXCH8T245PWR has a total of 20 pins, which are assigned specific functions as follows:

| Pin Number | Pin Name | Function | |------------|----------|----------| | 1 | A1 | Data Input/Output for Port A Bit 1 | | 2 | OE | Output Enable | | 3 | GND | Ground | | 4 | A2 | Data Input/Output for Port A Bit 2 | | 5 | A3 | Data Input/Output for Port A Bit 3 | | 6 | VCCA | Supply Voltage for Port A | | 7 | A4 | Data Input/Output for Port A Bit 4 | | 8 | A5 | Data Input/Output for Port A Bit 5 | | 9 | A6 | Data Input/Output for Port A Bit 6 | | 10 | A7 | Data Input/Output for Port A Bit 7 | | 11 | A8 | Data Input/Output for Port A Bit 8 | | 12 | VCCB | Supply Voltage for Port B | | 13 | B1 | Data Input/Output for Port B Bit 1 | | 14 | B2 | Data Input/Output for Port B Bit 2 | | 15 | B3 | Data Input/Output for Port B Bit 3 | | 16 | B4 | Data Input/Output for Port B Bit 4 | | 17 | B5 | Data Input/Output for Port B Bit 5 | | 18 | B6 | Data Input/Output for Port B Bit 6 | | 19 | B7 | Data Input/Output for Port B Bit 7 | | 20 | B8 | Data Input/Output for Port B Bit 8 |

Functional Features

• Bidirectional data transfer between two systems operating at different voltage levels
• Automatic direction control based on the direction of data flow
• Supports voltage level translation from 1.2V to 3.6V
• Provides voltage isolation between the two systems

Advantages and Disadvantages

Advantages

• Enables seamless communication between systems with different voltage requirements
• Bidirectional functionality simplifies system design
• Wide supply voltage range allows compatibility with various devices
• Fast propagation delay ensures efficient data transfer

Disadvantages

• Limited output drive capability may not be suitable for high-current applications
• Requires careful consideration of voltage level compatibility to avoid signal distortion or damage

Working Principles

The SN74AXCH8T245PWR is a bidirectional bus transceiver that facilitates communication between two systems operating at different voltage levels. It automatically detects the direction of data flow and adjusts the signal accordingly. The IC utilizes level shifting techniques to ensure proper voltage translation, allowing seamless data transfer between the two systems.

Detailed Application Field Plans

The SN74AXCH8T245PWR finds applications in various fields where voltage level translation is required. Some potential application areas include: - IoT (Internet of Things) devices - Embedded systems - Communication interfaces - Sensor networks - Industrial automation

Detailed and Complete Alternative Models

1. SN74LVC8T245PW: Similar bidirectional bus transceiver with 3.3V logic voltage levels.
2. SN74HCT245PW: Octal bus transceiver with non-inverting outputs and 5V logic voltage levels.
3. SN74LVCH8T245PW: Bidirectional bus transceiver with 3.3V logic voltage levels and higher output drive capability.

These alternative models offer similar functionality but may have variations in voltage levels