SN74LVCH245APWTG4

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: Bidirectional Voltage-Level Translator
• 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 + 0.5V
• Low-Level Input Voltage: -0.5V to 0.3 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

Pin Configuration

The SN74LVCH245APWTG4 has a total of 20 pins. The pin configuration is 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. VCC (Supply Voltage)
18. B8 (Data Input/Output) 8
19. A8 (Data Input/Output) 8
20. OE (Output Enable) 2

Functional Features

• Bidirectional voltage-level translation between two independent buses
• Allows for interfacing between devices operating at different voltage levels
• Supports both 3.3V and 2.5V systems
• Provides non-inverting level shifting with 3-state outputs
• Enables bi-directional communication without the need for direction control signals

Advantages and Disadvantages

Advantages

• Wide supply voltage range allows compatibility with various systems
• High-speed operation up to 400MHz enables efficient data transfer
• Octal bus transceiver provides bidirectional communication for multiple channels
• Low-voltage operation reduces power consumption

Disadvantages

• Limited to 8 channels, may not be suitable for applications requiring more channels
• TSSOP package may require careful handling during assembly

Working Principles

The SN74LVCH245APWTG4 is a bidirectional voltage-level translator designed to facilitate communication between devices operating at different voltage levels. It uses a combination of CMOS and TTL logic to achieve non-inverting level shifting.

The device features eight channels, allowing bidirectional data transfer between two independent buses. The direction of data flow is determined by the Output Enable (OE) pins. When OE is low, the device is enabled, and data can be transmitted in both directions. When OE is high, the outputs are in a high-impedance state.

The SN74LVCH245APWTG4 operates within a supply voltage range of 1.65V to 3.6V, making it compatible with various systems. It supports high-speed operation up to 400MHz, enabling efficient data transfer between devices. The device also features 3-state outputs, allowing multiple transceivers to share a common bus without contention.

Detailed Application Field Plans

The SN74LVCH245APWTG4 finds applications in various fields where voltage-level translation is required. Some potential application areas include:

1. Microcontroller interfacing: The device can be used to interface microcontrollers operating at different voltage levels, enabling communication between them.
2. Communication systems: It can be employed in communication systems to facilitate data exchange between devices operating at different voltage domains.
3. Industrial automation: The transceiver can be utilized in industrial automation systems to connect sensors and actuators operating at different voltage levels.
4. Automotive electronics: It can be integrated into automotive electronic systems to enable communication between components with varying voltage requirements.
5. Consumer electronics: