74LVCR2245ADBQRG4

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Level Shifter and Bus Transceiver
• Characteristics: Bidirectional, Non-Inverting, Tri-State Outputs
• Package: TSSOP-20
• Essence: Transceiver IC for voltage level translation between different logic levels
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• Logic Voltage Levels: 1.8V, 2.5V, 3.3V, and 5V
• Maximum Data Rate: 400 Mbps
• Number of Channels: 8
• Output Drive Capability: ±24mA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The 74LVCR2245ADBQRG4 has a TSSOP-20 package with the following pin configuration:

+-------------------+ OE --|1 20|-- VCCB A1B --|2 19|-- B1A A2B --|3 18|-- B2A A3B --|4 74LVCR2245 17|-- B3A A4B --|5 ADBQRG4 16|-- B4A A5B --|6 15|-- B5A A6B --|7 14|-- B6A A7B --|8 13|-- B7A A8B --|9 12|-- B8A GND --|10 11|-- VCCA +-------------------+

Functional Features

• Bidirectional voltage level translation between two logic voltage domains
• Non-inverting outputs preserve the logic state of the input signals
• Tri-state outputs allow multiple devices to share a common bus
• 3-state output control (OE) for enabling/disabling the outputs

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various logic families - High-speed data transmission up to 400 Mbps - Bidirectional operation simplifies interfacing between different logic levels - Tri-state outputs enable bus sharing among multiple devices

Disadvantages: - Limited number of channels (8 in this case) - Requires careful consideration of voltage level compatibility to avoid signal degradation or damage

Working Principles

The 74LVCR2245ADBQRG4 is designed to translate logic signals between different voltage levels. It utilizes a combination of MOSFETs and CMOS technology to achieve bidirectional voltage level shifting. The inputs are compatible with various logic families, such as TTL, CMOS, and LVCMOS, while the outputs can drive both standard and open-drain loads.

The device operates by monitoring the input logic levels and translating them to the corresponding output voltage levels. When the OE (output enable) pin is active, the outputs are enabled and reflect the logic states of the inputs. When the OE pin is inactive, the outputs are in a high-impedance state, allowing other devices to drive the bus.

Detailed Application Field Plans

The 74LVCR2245ADBQRG4 is commonly used in applications where voltage level translation is required. Some typical application fields include: - Interfacing between microcontrollers operating at different logic levels - Communication between devices with incompatible voltage levels - Level shifting in mixed-voltage systems - Bus transceivers in multi-device communication networks

Detailed and Complete Alternative Models

• SN74LVC245A: Octal Bus Transceiver with 3-State Outputs
• MC74LVX245: Low Voltage Octal Bidirectional Transceiver with 3-State Outputs
• CD4508B: CMOS Dual 4-Bit Latch/4-to-8 Line Decoder

These alternative models offer similar functionality and can be used as substitutes for the 74LVCR2245ADBQRG4 in various applications.

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