SN74LVT245BDW

Overview

• Category: Integrated Circuit
• Use: Level Shifter/Transceiver
• Characteristics: Bi-directional, 8-bit, voltage level translation
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Transfers data between different voltage domains
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 2.7V to 3.6V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• High-Level Input Voltage: 2V to VCC + 0.5V
• Low-Level Input Voltage: -0.5V to 0.8V
• High-Level Output Voltage: VCC - 0.4V
• Low-Level Output Voltage: 0.4V
• Maximum Operating Frequency: 80MHz

Pin Configuration

The SN74LVT245BDW 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. GND (Ground)
5. B2 (Data Input/Output) 2
6. A2 (Data Input/Output) 2
7. VCC (Supply Voltage)
8. DIR (Direction Control)
9. B3 (Data Input/Output) 3
10. A3 (Data Input/Output) 3
11. B4 (Data Input/Output) 4
12. A4 (Data Input/Output) 4
13. B5 (Data Input/Output) 5
14. A5 (Data Input/Output) 5
15. B6 (Data Input/Output) 6
16. A6 (Data Input/Output) 6
17. B7 (Data Input/Output) 7
18. A7 (Data Input/Output) 7
19. B8 (Data Input/Output) 8
20. A8 (Data Input/Output) 8

Functional Features

• Bi-directional data transfer between two voltage domains
• Voltage level translation from 2.7V to 3.6V
• Supports bidirectional communication between different logic families
• Output enable control for disabling the outputs
• Direction control for selecting the data flow direction

Advantages and Disadvantages

Advantages

• Enables communication between devices operating at different voltage levels
• Provides bidirectional data transfer capability
• Supports high-speed operation up to 80MHz
• Low power consumption
• Easy to use and integrate into existing circuits

Disadvantages

• Limited voltage range of 2.7V to 3.6V
• Not suitable for applications requiring voltage translation beyond this range
• May introduce slight signal delay due to voltage level translation process

Working Principles

The SN74LVT245BDW is a level shifter/transceiver integrated circuit that allows bidirectional data transfer between two voltage domains. It operates by translating the input signals from one voltage level to another, enabling communication between devices operating at different voltage levels.

The direction of data flow is controlled by the DIR pin. When DIR is set to logic low, data flows from A-side to B-side, and when DIR is set to logic high, data flows from B-side to A-side.

The OE pin is used to enable or disable the outputs. When OE is set to logic low, the outputs are enabled, allowing data transfer. Conversely, when OE is set to logic high, the outputs are disabled, preventing data transfer.

Detailed Application Field Plans

The SN74LVT245BDW is commonly used in various applications where voltage level translation is required. Some of the typical application fields include:

1. Microcontroller interfacing with different logic families
2. Communication between devices operating at different voltage levels
3. Interface between memory modules and microprocessors
4. Data transfer between mixed-voltage systems
5. Level shifting in industrial automation systems

Detailed and Complete Alternative Models

• TXB0108PWR: 8-bit Bidirectional Voltage-Level Translator
• PCA9306DCUR: Dual Bidirectional I2C-Bus and SMBus Voltage-Level Translator
• SN74AVC4T245PW: 4-bit Dual-Supply Bus Transceiver with Configurable Voltage Translation

These alternative models offer similar functionality and can be considered as alternatives to the SN74LVT245BDW depending on specific requirements and design constraints.

In conclusion, the SN74LVT245BDW is a versatile integrated circuit that enables bidirectional data transfer between different voltage domains. Its compact package, wide