74LVC544ADB,112

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Shifter
• Characteristics: Low-voltage CMOS Octal D-type Flip-Flop with 3-State Outputs
• Package: TSSOP-20
• Essence: This IC is designed to shift logic levels between different voltage domains.
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• High-Level Input Voltage: 0.7 x VCC
• Low-Level Input Voltage: 0.3 x VCC
• High-Level Output Voltage: 0.9 x VCC
• Low-Level Output Voltage: 0.1 x VCC
• Maximum Operating Frequency: 100 MHz
• Number of Inputs/Outputs: 8

Detailed Pin Configuration

The 74LVC544ADB,112 has a total of 20 pins. The pin configuration is as follows:

1. OE (Output Enable) - Output Enable Input
2. CP (Clock Pulse) - Clock Pulse Input
3. D0-D7 (Data Inputs) - Data Inputs
4. Q0-Q7 (Flip-Flop Outputs) - Flip-Flop Outputs
5. GND (Ground) - Ground Reference
6. VCC (Supply Voltage) - Positive Supply Voltage

Functional Features

• Octal D-type flip-flop with 3-state outputs
• Provides non-inverting level shifting between two voltage domains
• Allows bidirectional communication between different logic families
• Supports both TTL and CMOS voltage levels
• 3-state outputs allow multiple devices to share a common bus

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various systems - High-speed operation up to 100 MHz - Low power consumption - 3-state outputs provide flexibility in bus sharing applications

Disadvantages: - Limited number of inputs/outputs (8) - Not suitable for high-voltage applications

Working Principles

The 74LVC544ADB,112 is a level shifter that operates by using flip-flops to store and transfer data between different voltage domains. The input data is latched on the rising edge of the clock pulse and transferred to the output when the output enable signal is active. The 3-state outputs allow the device to be disconnected from the bus, enabling multiple devices to share the same communication lines.

Detailed Application Field Plans

The 74LVC544ADB,112 can be used in various applications where logic level shifting is required. Some potential application fields include:

1. Microcontroller interfacing with different voltage peripherals
2. Communication systems involving multiple logic families
3. Data acquisition systems with mixed voltage sensors
4. Industrial automation and control systems
5. Automotive electronics

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the 74LVC544ADB,112 are:

1. SN74LVC541A - Octal Buffer/Driver with 3-State Outputs
2. MC74LVX245 - Octal Bus Transceiver with 3-State Outputs
3. CD4508B - CMOS Dual 4-Bit Latch with 3-State Outputs
4. 74HC244 - Octal Buffer/Line Driver with 3-State Outputs
5. NC7SZ125 - Single Bus Buffer Gate with 3-State Output

These alternative models can be considered based on specific requirements and compatibility with the system.

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