74LCXR2245SJX

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Level Shifter and Bus Transceiver
• Characteristics: Bi-directional voltage level translation, high-speed operation, low power consumption
• Package: SOP (Small Outline Package)
• Essence: A versatile IC that enables bidirectional voltage level shifting between two different voltage domains.
• Packaging/Quantity: Available in tape and reel packaging, with a quantity of 2500 units per reel.

Specifications

• Supply Voltage Range: 1.65V to 3.6V
• Input Voltage Range (A Port): 0V to VCCA + 0.5V
• Input Voltage Range (B Port): 0V to VCCB + 0.5V
• Output Voltage Range (A/B Ports): 0V to VCCA/VCCB
• Maximum Data Rate: 400 Mbps
• Number of Channels: 8

Detailed Pin Configuration

The 74LCXR2245SJX has a total of 24 pins, which are distributed as follows:

• Pin 1: OE (Output Enable) - Active Low
• Pins 2 to 9: A1 to A8 (Channel A Inputs/Outputs)
• Pins 10 to 17: B1 to B8 (Channel B Inputs/Outputs)
• Pin 18: GND (Ground)
• Pin 19: VCCA (Voltage Supply for Channel A)
• Pin 20: VCCB (Voltage Supply for Channel B)
• Pin 21: DIR (Direction Control)
• Pin 22: NC (No Connection)
• Pin 23: NC (No Connection)
• Pin 24: VCC (Positive Power Supply)

Functional Features

• Bidirectional voltage level shifting: Allows seamless communication between devices operating at different voltage levels.
• High-speed operation: Supports data rates up to 400 Mbps, making it suitable for applications requiring fast data transfer.
• Low power consumption: Designed to minimize power consumption, making it ideal for battery-powered devices.

Advantages and Disadvantages

Advantages: - Versatile level shifter for bidirectional voltage translation. - Supports high-speed data transfer. - Low power consumption extends battery life in portable devices.

Disadvantages: - Limited to a maximum of 8 channels. - Not suitable for voltage translation beyond the specified supply voltage range.

Working Principles

The 74LCXR2245SJX utilizes a combination of MOSFETs and control logic to achieve bidirectional voltage level shifting. The DIR pin controls the direction of data flow, while the OE pin enables or disables the outputs. When the OE pin is low, the outputs are active, allowing data transmission between the A and B ports.

Detailed Application Field Plans

The 74LCXR2245SJX finds applications in various fields, including: 1. Communication systems: Enables voltage level translation between different communication protocols. 2. Embedded systems: Facilitates communication between microcontrollers operating at different voltage levels. 3. Consumer electronics: Allows interfacing between devices with varying voltage requirements, such as smartphones and peripherals. 4. Industrial automation: Enables communication between sensors, actuators, and control systems operating at different voltage domains.

Detailed and Complete Alternative Models

1. SN74LVC245A: Similar bidirectional voltage level translator with 8 channels, supporting data rates up to 100 Mbps.
2. TXB0108: Eight-channel bi-directional voltage-level translator with automatic direction sensing, supporting data rates up to 20 Mbps.
3. PCA9306: Dual bidirectional I2C-bus and SMBus voltage-level translator with configurable voltage levels.

(Note: This list is not exhaustive and serves as a starting point for exploring alternative models.)

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