SN74ABTH245DGVRG4

Product Overview

• Category: Integrated Circuit
• Use: Level Shifter and Bus Transceiver
• Characteristics: High-speed, Bi-directional, Voltage-level Translation
• Package: VSSOP (Very Small Outline Package)
• Essence: Translates signals between different voltage levels in digital systems
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2 V to 5.5 V
• Input Voltage Range: 0 V to VCC
• Output Voltage Range: 0 V to VCC
• Maximum Operating Frequency: 100 MHz
• Number of Channels: 8
• Input/Output Type: Tri-state

Detailed Pin Configuration

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

Functional Features

• Bi-directional voltage-level translation between two different voltage domains
• High-speed operation with a maximum frequency of 100 MHz
• Tri-state outputs allow multiple devices to share a common bus
• Output enable control for disabling the outputs when not in use
• Low power consumption

Advantages

• Enables seamless communication between digital systems operating at different voltage levels
• Supports bidirectional data transfer, allowing for versatile applications
• Compact VSSOP package saves board space
• High-speed operation ensures efficient data transmission
• Tri-state outputs facilitate bus sharing and reduce system complexity

Disadvantages

• Limited to voltage translation between 2 V and 5.5 V supply ranges
• Not suitable for applications requiring voltage translation beyond specified limits
• May require additional components for level shifting in certain scenarios

Working Principles

The SN74ABTH245DGVRG4 is a level shifter and bus transceiver integrated circuit. It operates by translating signals between two different voltage domains in digital systems. The device uses a combination of input/output buffers and control logic to achieve bi-directional voltage-level translation.

The direction of data flow is controlled by the DIR pin. When DIR is high, data is transferred from the A side (lower voltage domain) to the B side (higher voltage domain), and when DIR is low, data is transferred in the opposite direction. The OE pin is used to enable or disable the outputs.

The device is designed to operate within a supply voltage range of 2 V to 5.5 V. It supports high-speed operation with a maximum frequency of 100 MHz, making it suitable for various digital communication protocols.

Detailed Application Field Plans

The SN74ABTH245DGVRG4 is widely used in digital systems where voltage-level translation is required. Some common application fields include:

1. Microcontroller interfacing: The device enables communication between microcontrollers operating at different voltage levels, allowing them to exchange data seamlessly.

2. Memory interfaces: It facilitates the connection between memory modules and microprocessors with different voltage requirements, ensuring reliable data transfer.

3. Communication protocols: The level shifter is utilized in various communication protocols such as I2C, SPI, and UART, enabling compatibility between devices operating at different voltage levels.

4. Mixed-voltage systems: It finds applications in systems that combine components with different voltage requirements, such as mixed-voltage FPGA designs or system-on-chip (SoC) implementations.

Detailed and Complete Alternative Models

1. SN74LVC245A: Low Voltage CMOS Octal Bus Transceiver
2. TXB0108: 8-Bit Bidirectional Voltage-Level Translator
3. PCA9306: Dual Bi-Directional I2C-Bus and SMBus Voltage-Level Translator
4. CD4504B: Hex Voltage-Level Shifter for TTL-to-CMOS or CMOS-to-CMOS