SN74LVTH245APWRG4

Product Overview

• Category: Integrated Circuit
• Use: Level Shifter/Transceiver
• Characteristics: Low Voltage, High-Speed, 8-Bit Bidirectional Transceiver
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: The SN74LVTH245APWRG4 is a versatile level shifter and transceiver integrated circuit that allows bidirectional voltage translation between different logic levels.
• Packaging/Quantity: Available in tape and reel packaging with 2500 units per reel.

Specifications

• Logic Family: LVTH
• Number of Channels: 8
• Input Voltage Range: 1.65V to 5.5V
• Output Voltage Range: 1.65V to 5.5V
• Propagation Delay Time: 3.7ns (typical)
• Operating Temperature Range: -40°C to 85°C
• Supply Voltage Range: 2.7V to 3.6V

Detailed Pin Configuration

The SN74LVTH245APWRG4 has a total of 20 pins, which are assigned as follows:

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

Functional Features

• Bidirectional voltage translation between different logic levels.
• High-speed operation with low propagation delay time.
• Output enable control for disabling the outputs.
• 3-state outputs for easy bus sharing.

Advantages and Disadvantages

Advantages: - Versatile level shifter/transceiver suitable for various applications. - Wide input and output voltage range. - Low power consumption. - Compact TSSOP package for space-constrained designs.

Disadvantages: - Limited number of channels (8). - Not suitable for high-voltage applications.

Working Principles

The SN74LVTH245APWRG4 operates by using a combination of CMOS and TTL technologies to achieve bidirectional voltage translation. It features a direction control pin (OE) that enables or disables the outputs, allowing for easy bus sharing. The inputs and outputs are designed to be compatible with both 3.3V and 5V logic levels, making it suitable for interfacing between different voltage domains.

Detailed Application Field Plans

The SN74LVTH245APWRG4 is commonly used in various applications, including:

1. Microcontroller interfacing: It facilitates communication between microcontrollers operating at different logic levels.
2. Level shifting in mixed-voltage systems: It allows for seamless integration of components with different voltage requirements.
3. Bus transceivers: It enables bidirectional data transfer between buses operating at different voltage levels.
4. Signal level conversion: It converts logic levels between different voltage domains in communication systems.

Detailed and Complete Alternative Models

1. SN74LVC245APWRG4: Similar to SN74LVTH245APWRG4, but operates at a lower voltage range (1.65V to 3.6V).
2. SN74HCT245APWRG4: A TTL-compatible alternative with higher voltage tolerance (2V to 5.5V).
3. SN74LVCH245APWRG4: Another low-voltage level shifter/transceiver with similar characteristics.

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