SN74ABTR2245PWR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Signal Transceiver
• Characteristics: Bi-directional, 8-bit, non-inverting, voltage-level translation
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Translates signals between different voltage levels in electronic systems
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage: 2.3V to 3.6V
• Input Voltage Levels: 0V to VCC
• Output Voltage Levels: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay: 4.5ns (typical)
• Output Drive Capability: ±24mA

Detailed Pin Configuration

The SN74ABTR2245PWR has a total of 20 pins, which are assigned as follows:

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

Functional Features

• Bi-directional voltage-level translation between two independent buses
• Non-inverting signal translation
• Automatic direction control based on DIR pin
• High-speed operation with low propagation delay
• Wide operating voltage range for compatibility with various systems
• Output drive capability suitable for driving capacitive loads

Advantages and Disadvantages

Advantages

• Enables seamless communication between different voltage domains in electronic systems
• Simplifies system design by eliminating the need for additional level-shifting components
• Fast signal transmission with minimal delay
• Robust output drive capability for reliable performance

Disadvantages

• Limited to 8-bit data width
• Requires careful consideration of voltage compatibility between input and output buses

Working Principles

The SN74ABTR2245PWR is designed to facilitate signal translation between two buses operating at different voltage levels. It utilizes a bidirectional buffer circuitry that allows data to flow in both directions. The direction of data transfer is controlled by the DIR pin, which determines whether the translation occurs from Bus A to Bus B or vice versa.

When the DIR pin is set to logic high, the data is transferred from Bus A to Bus B. Conversely, when the DIR pin is set to logic low, the data is transferred from Bus B to Bus A. The non-inverting nature of the device ensures that the logic levels are maintained during translation.

Detailed Application Field Plans

The SN74ABTR2245PWR finds applications in various fields where voltage-level translation is required. Some of the common application areas include:

1. Microcontroller interfacing with different peripheral devices operating at different voltage levels.
2. Communication interfaces between modules or boards with varying voltage requirements.
3. Level shifting in mixed-voltage systems, such as automotive electronics or industrial control systems.
4. Signal translation in data acquisition systems to ensure compatibility between sensors and microcontrollers.

Detailed and Complete Alternative Models

1. SN74ABT2245: Similar functionality with a different package (SOIC)
2. SN74LVC4245A: Bi-directional voltage-level translator with 5V tolerant inputs (TSSOP)
3. SN74AVC4T245: Quad-bit level shifter with configurable voltage translation (QFN)

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

In conclusion, the SN74ABTR2245PWR is an integrated circuit signal transceiver that enables bi-directional voltage-level translation between two independent buses. It offers fast operation, wide voltage range, and robust drive capability. While it has limitations in terms of data width and voltage compatibility, it simplifies system design and finds applications in various fields. Alternative models provide additional options for specific needs.