SN74LVTH2245DWRE4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Level Shifter and Bus Transceiver
• Characteristics:
  • Low-voltage, high-speed CMOS technology
  • Bidirectional voltage translation between different logic levels
  • Supports both 3.3V and 5V systems
  • 8-bit wide transceiver with 3-state outputs
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Voltage level shifting and bidirectional data transmission
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2.7V to 3.6V
• High-Level Input Voltage: 2.1V to VCC + 0.3V
• Low-Level Input Voltage: -0.3V to 0.8V
• High-Level Output Voltage: 2.4V (min) at IOH = -12mA
• Low-Level Output Voltage: 0.4V (max) at IOL = 12mA
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The SN74LVTH2245DWRE4 has a total of 20 pins, which are assigned as follows:

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

Functional Features

• Bidirectional voltage translation between different logic levels
• Automatic direction control based on the DIR pin
• 3-state outputs for bus sharing
• Supports both push-pull and open-drain output configurations
• Low power consumption

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various systems - High-speed operation for efficient data transmission - Bidirectional functionality simplifies circuit design - 3-state outputs enable bus sharing

Disadvantages: - Limited number of data ports (5 in total) - May require additional components for level shifting in certain applications

Working Principles

The SN74LVTH2245DWRE4 is designed to facilitate bidirectional voltage translation between different logic levels. It operates by automatically controlling the direction of data flow based on the input provided to the DIR pin. The IC supports both push-pull and open-drain output configurations, allowing flexibility in system design.

Detailed Application Field Plans

The SN74LVTH2245DWRE4 can be used in various applications that require voltage level shifting and bidirectional data transmission. Some potential application fields include:

1. Microcontroller interfacing with different logic levels
2. Communication systems involving multiple voltage domains
3. Data buses in automotive electronics
4. Industrial automation and control systems
5. Battery-powered devices with mixed voltage requirements

Detailed and Complete Alternative Models

1. SN74LVC4245A: Similar functionality with lower supply voltage range (1.65V to 3.6V)
2. SN74AVC4T245: 4-bit bidirectional level shifter with smaller package size
3. SN74LVC8T245: 8-bit bidirectional level shifter with higher speed operation

These alternative models offer similar features and can be considered based on specific application requirements.

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