SN74LVCC4245ADWR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Level Shifter and Voltage Translator
• Characteristics: Bidirectional, 8-bit, non-inverting, voltage-level translator
• Package: SOIC-20 Wide (DW) package
• Essence: Translates signals between different voltage levels
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Maximum Input Clamp Current: ±20mA
• Maximum Output Clamp Current: ±50mA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The SN74LVCC4245ADWR has a total of 20 pins. The pin configuration is as follows:

1. OE (Output Enable) A
2. I/O0A (Bidirectional Data I/O) A
3. I/O1A (Bidirectional Data I/O) A
4. GND (Ground)
5. I/O2A (Bidirectional Data I/O) A
6. I/O3A (Bidirectional Data I/O) A
7. VCC (Positive Power Supply)
8. DIR (Direction Control)
9. I/O4A (Bidirectional Data I/O) A
10. I/O5A (Bidirectional Data I/O) A
11. I/O6A (Bidirectional Data I/O) A
12. I/O7A (Bidirectional Data I/O) A
13. GND (Ground)
14. I/O7B (Bidirectional Data I/O) B
15. I/O6B (Bidirectional Data I/O) B
16. I/O5B (Bidirectional Data I/O) B
17. VCC (Positive Power Supply)
18. I/O4B (Bidirectional Data I/O) B
19. DIR (Direction Control)
20. OE (Output Enable) B

Functional Features

• Bidirectional voltage-level translation between two independent buses
• Non-inverting translation, preserving the logic state of the input signal
• Automatic direction control based on the DIR pin
• Output enable control through the OE pin
• Supports mixed-mode signal operation on each port
• Low power consumption and high-speed operation

Advantages and Disadvantages

Advantages: - Allows interfacing between devices operating at different voltage levels - Provides bidirectional data transfer capability - Preserves signal integrity by maintaining logic states during translation - Offers automatic direction control for ease of use

Disadvantages: - Limited to 8-bit data width - Requires careful consideration of voltage level compatibility

Working Principles

The SN74LVCC4245ADWR is designed to translate signals between two independent buses operating at different voltage levels. It utilizes a bidirectional voltage-level translation technique, ensuring non-inverting translation and preserving the logic state of the input signal.

The direction of translation is controlled by the DIR pin. When DIR is set to logic low, data is transferred from Port A to Port B. Conversely, when DIR is set to logic high, data is transferred from Port B to Port A.

The OE pin enables or disables the outputs. When OE is set to logic high, the outputs are disabled, effectively isolating the two buses.

Detailed Application Field Plans

The SN74LVCC4245ADWR finds applications in various fields where voltage-level translation is required. Some specific application areas include:

1. Microcontroller interfacing: It allows communication between microcontrollers operating at different voltage levels.
2. Sensor networks: It facilitates data exchange between sensors operating at different voltage levels.
3. Industrial automation: It enables communication between different control systems with varying voltage requirements.
4. Communication interfaces: It serves as a bridge between devices using different voltage standards, such as UART, SPI, or I2C.

Detailed and Complete Alternative Models

1. TXB0108PWR: 8-bit bidirectional voltage-level translator with automatic direction control.
2. PCA9306DCTR: Dual bidirectional I2C-bus and SMBus voltage-level translator.
3. SN74LVC4245APW: Octal bus transceiver and voltage-level shifter.

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

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