SN64BCT245NSRG4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Level Shifter and Bus Transceiver
• Characteristics: High-speed, bidirectional voltage-level translator
• Package: 20-pin small-outline integrated circuit (SOIC)
• Essence: Converts signals between different voltage levels in digital systems
• Packaging/Quantity: Available in tape and reel packaging, with a quantity of 2500 units per reel

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• High-Level Input Voltage: 2V to VCC
• Low-Level Input Voltage: GND to 0.8V
• High-Level Output Voltage: VCC - 0.5V
• Low-Level Output Voltage: 0.5V
• Maximum Operating Frequency: 100MHz
• Propagation Delay Time: 7ns (typical)

Detailed Pin Configuration

The SN64BCT245NSRG4 has a total of 20 pins, which are assigned as follows:

1. OE (Output Enable) - Active low output enable input
2. A1 - Data input/output terminal for Port A
3. B1 - Data input/output terminal for Port B
4. A2 - Data input/output terminal for Port A
5. B2 - Data input/output terminal for Port B
6. A3 - Data input/output terminal for Port A
7. B3 - Data input/output terminal for Port B
8. A4 - Data input/output terminal for Port A
9. B4 - Data input/output terminal for Port B
10. GND - Ground
11. B5 - Data input/output terminal for Port B
12. A5 - Data input/output terminal for Port A
13. B6 - Data input/output terminal for Port B
14. A6 - Data input/output terminal for Port A
15. B7 - Data input/output terminal for Port B
16. A7 - Data input/output terminal for Port A
17. B8 - Data input/output terminal for Port B
18. A8 - Data input/output terminal for Port A
19. VCC - Positive supply voltage
20. DIR (Direction Control) - Direction control input

Functional Features

• Bidirectional voltage-level translation between two different voltage domains
• Supports both 3.3V and 5V logic levels
• Provides non-inverting level shifting
• Allows bi-directional communication between systems with different voltage levels
• Enables interfacing between microcontrollers, FPGAs, and other digital devices operating at different voltage levels

Advantages and Disadvantages

Advantages: - High-speed operation - Wide supply voltage range - Bi-directional data transfer capability - Easy to use and integrate into digital systems

Disadvantages: - Limited number of channels (8-bit) - Not suitable for applications requiring higher voltage translations

Working Principles

The SN64BCT245NSRG4 operates by utilizing a voltage-level translation technique known as level shifting. It consists of a bidirectional buffer that converts signals between two different voltage domains. The direction of data flow is controlled by the DIR pin. When DIR is high, data flows from Port A to Port B, and when DIR is low, data flows from Port B to Port A.

The IC uses a combination of MOSFETs and CMOS technology to achieve fast switching speeds and low power consumption. It ensures reliable data transmission by providing robust noise immunity and minimizing signal distortion.

Detailed Application Field Plans

The SN64BCT245NSRG4 is commonly used in various applications, including:

1. Microcontroller interfacing: It enables communication between microcontrollers operating at different voltage levels, allowing seamless integration of multiple microcontrollers in a system.
2. FPGA interfacing: It facilitates data transfer between FPGAs and other digital devices with different voltage requirements, enabling efficient communication in complex digital systems.
3. Bus transceiver: It serves as a bidirectional buffer for level shifting in bus communication systems, such as I2C, SPI, and UART, ensuring compatibility between devices operating at different voltage levels.

Detailed and Complete Alternative Models

1. SN74LVC245A: 8-bit dual-supply bus transceiver with configurable voltage translation
2. TXB0108: 8-bit bidirectional voltage-level translator with automatic direction sensing
3. PCA9306: Dual bidirectional I2C-bus and SMBus voltage-level translator
4. CD4504B: Hex voltage-level shifter for TTL-to-CMOS or CMOS-to-CMOS applications

These alternative models offer similar functionality and can be used as substitutes for the SN64BCT245NSRG4 in various applications.

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