SN74LVCR2245ADW

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Level Translator
• Characteristics: Bidirectional, 8-bit, non-inverting
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Translates voltage levels between two different logic families
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• Logic Voltage Levels: 1.2V to 5.5V
• Input/Output Capacitance: 4pF
• Operating Temperature Range: -40°C to +85°C
• Output Drive Capability: ±24mA
• Propagation Delay: 3.7ns (typical)

Detailed Pin Configuration

The SN74LVCR2245ADW has a total of 20 pins, which are arranged as follows:

1. OE (Output Enable) A
2. A1 (Data Bus A Bit 1)
3. A2 (Data Bus A Bit 2)
4. A3 (Data Bus A Bit 3)
5. A4 (Data Bus A Bit 4)
6. A5 (Data Bus A Bit 5)
7. A6 (Data Bus A Bit 6)
8. A7 (Data Bus A Bit 7)
9. A8 (Data Bus A Bit 8)
10. GND (Ground)
11. B8 (Data Bus B Bit 8)
12. B7 (Data Bus B Bit 7)
13. B6 (Data Bus B Bit 6)
14. B5 (Data Bus B Bit 5)
15. B4 (Data Bus B Bit 4)
16. B3 (Data Bus B Bit 3)
17. B2 (Data Bus B Bit 2)
18. B1 (Data Bus B Bit 1)
19. OE (Output Enable) B
20. VCC (Supply Voltage)

Functional Features

• Bidirectional voltage level translation between two different logic families
• Non-inverting translation, preserving the logic state of the input signals
• Supports voltage translation from 1.2V to 5.5V logic levels
• Enables interfacing between devices operating at different voltage levels

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various systems - Non-inverting translation simplifies signal integrity considerations - High output drive capability enables driving capacitive loads - Fast propagation delay ensures efficient data transfer

Disadvantages: - Limited to 8-bit bidirectional translation - Requires careful consideration of power supply sequencing in mixed-voltage systems

Working Principles

The SN74LVCR2245ADW is a bidirectional voltage level translator that facilitates communication between devices operating at different logic voltage levels. It utilizes a combination of MOSFETs and CMOS technology to achieve non-inverting translation.

When the Output Enable (OE) pin is low, the device is enabled, and the input signals on Data Bus A are translated to the corresponding voltage levels on Data Bus B. Conversely, when OE is high, the translation is disabled, and the outputs are in high-impedance state.

The device operates by monitoring the voltage levels on both sides and translating them accordingly, ensuring proper signal integrity and compatibility between different logic families.

Detailed Application Field Plans

The SN74LVCR2245ADW finds applications in various fields, including:

1. Microcontroller interfacing: It enables communication between microcontrollers operating at different voltage levels.
2. Mixed-voltage systems: It facilitates integration of components with different logic voltage requirements.
3. Industrial automation: It allows interfacing between different control systems and sensors.
4. Consumer electronics: It enables communication between devices with varying voltage levels, such as smartphones and peripherals.

Detailed and Complete Alternative Models

1. SN74LVC4245ADW: Similar to SN74LVCR2245ADW but with inverting translation capability.
2. SN74AVC4T245PW: 4-bit bidirectional voltage level translator with higher output drive capability.
3. SN74HCT125N: Quad buffer/line driver with non-inverting translation for 3.3V logic levels.

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

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