MC74LCX374MELG

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Flip-Flop
• Characteristics: Low-voltage, high-speed CMOS technology
• Package: 20-pin SOIC (Small Outline Integrated Circuit)
• Essence: D-type flip-flop with 3-state outputs
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2.0V to 3.6V
• High-Level Input Voltage: 2.0V to Vcc + 0.5V
• Low-Level Input Voltage: -0.5V to 0.8V
• High-Level Output Voltage: Vcc - 0.4V
• Low-Level Output Voltage: 0.4V
• Maximum Input Current: ±10mA
• Maximum Output Current: ±24mA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. D0: Data input for flip-flop 0
2. CP0: Clock input for flip-flop 0
3. Q0: Output of flip-flop 0
4. Q̅0: Complementary output of flip-flop 0
5. GND: Ground
6. D1: Data input for flip-flop 1
7. CP1: Clock input for flip-flop 1
8. Q1: Output of flip-flop 1
9. Q̅1: Complementary output of flip-flop 1
10. OE: Output Enable input
11. D2: Data input for flip-flop 2
12. CP2: Clock input for flip-flop 2
13. Q2: Output of flip-flop 2
14. Q̅2: Complementary output of flip-flop 2
15. Vcc: Supply voltage
16. D3: Data input for flip-flop 3
17. CP3: Clock input for flip-flop 3
18. Q3: Output of flip-flop 3
19. Q̅3: Complementary output of flip-flop 3
20. GND: Ground

Functional Features

• Low-voltage operation allows compatibility with various logic levels.
• High-speed CMOS technology enables fast data processing.
• 3-state outputs provide flexibility in connecting multiple devices.
• Edge-triggered flip-flops ensure reliable and synchronized data storage.

Advantages

• Wide supply voltage range allows versatile applications.
• High-speed operation enhances overall system performance.
• 3-state outputs enable efficient bus sharing and multiplexing.
• Compact SOIC package offers space-saving integration.

Disadvantages

• Limited operating temperature range may restrict certain industrial applications.
• Low-level output voltage might not be compatible with all external devices.
• Maximum input/output current limits may impose constraints on specific designs.
• Availability in tape and reel packaging may not suit all assembly processes.

Working Principles

The MC74LCX374MELG is a D-type flip-flop with 3-state outputs. It stores data at the rising edge of the clock signal, allowing synchronized data transfer. The flip-flop has four individual storage units, each with a data input (D) and clock input (CP). The outputs (Q and Q̅) represent the stored data and its complement, respectively. The Output Enable (OE) input controls the 3-state outputs, enabling or disabling their connection to external devices.

Detailed Application Field Plans

1. Digital Communication Systems: The MC74LCX374MELG can be used in data transmission and reception circuits, ensuring synchronized data storage and efficient bus sharing.
2. Microcontroller Interfacing: It facilitates the connection between microcontrollers and external devices, allowing reliable data transfer and control signal synchronization.
3. Memory Addressing: The flip-flop's 3-state outputs enable efficient multiplexing of memory address lines, optimizing memory utilization in various systems.
4. Industrial Automation: It can be employed in control systems, providing synchronized data storage for real-time monitoring and decision-making processes.

Detailed and Complete Alternative Models

1. SN74LVC374A: Similar D-type flip-flop with 3-state outputs, offered by Texas Instruments.
2. CD74HC374: High-speed CMOS logic IC with 3-state outputs, manufactured by Texas Instruments.
3. 74HCT374: Octal D-type flip-flop with 3-state outputs, available from various semiconductor manufacturers.

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