Encyclopedia Entry: 74ACQ374SCX

Product Overview

• Category: Integrated Circuit (IC)
• Use: Flip-Flop / Latch
• Characteristics: High-speed, low-power consumption
• Package: Small Outline Package (SOP)
• Essence: Sequential logic device for storing and transferring data
• Packaging/Quantity: Typically sold in reels or tubes containing multiple units

Specifications

• Technology: Advanced CMOS (Complementary Metal-Oxide-Semiconductor)
• Supply Voltage: 2.0V to 6.0V
• Operating Temperature: -40°C to +85°C
• Output Drive Capability: ±24mA
• Propagation Delay: 4.5ns (max) at 5V supply voltage
• Input Capacitance: 3pF (typical)

Detailed Pin Configuration

The 74ACQ374SCX IC has a total of 20 pins, which are assigned specific functions as follows:

1. Pin 1: Data Input D0
2. Pin 2: Data Input D1
3. Pin 3: Data Input D2
4. Pin 4: Data Input D3
5. Pin 5: Data Input D4
6. Pin 6: Data Input D5
7. Pin 7: Data Input D6
8. Pin 8: Data Input D7
9. Pin 9: Clock Input CP
10. Pin 10: Output Enable Input OE
11. Pin 11: Data Output Q0
12. Pin 12: Data Output Q1
13. Pin 13: Data Output Q2
14. Pin 14: Data Output Q3
15. Pin 15: Data Output Q4
16. Pin 16: Data Output Q5
17. Pin 17: Data Output Q6
18. Pin 18: Data Output Q7
19. Pin 19: Ground (GND)
20. Pin 20: Supply Voltage (VCC)

Functional Features

• The 74ACQ374SCX is a transparent latch with eight data inputs (D0-D7) and eight corresponding outputs (Q0-Q7).
• It operates on a positive-edge triggered clock input (CP) signal.
• The output enable input (OE) allows the outputs to be disabled when it is set to a logic low level.
• When the CP signal transitions from low to high, the data present at the inputs is latched and transferred to the outputs.

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient data transfer. - Low-power consumption makes it suitable for battery-powered devices. - Compact SOP package enables space-saving integration into electronic circuits.

Disadvantages: - Limited output drive capability may restrict its use in certain applications requiring higher current sourcing/sinking. - Sensitivity to electrostatic discharge (ESD) requires proper handling during assembly and usage.

Working Principles

The 74ACQ374SCX operates based on the principles of sequential logic. When the clock input (CP) transitions from low to high, the latch captures and holds the data present at the inputs (D0-D7). This data is then propagated to the outputs (Q0-Q7) until the next clock transition occurs.

Detailed Application Field Plans

The 74ACQ374SCX finds application in various digital systems where data storage and transfer are required. Some common application fields include: 1. Microprocessor-based systems 2. Data communication equipment 3. Memory modules 4. Industrial control systems 5. Automotive electronics

Detailed and Complete Alternative Models

• 74HC374: Similar functionality, but operates at a lower voltage range (2.0V to 6.0V).
• 74LS374: Compatible with TTL (Transistor-Transistor Logic) levels, but has slower speed and higher power consumption compared to the 74ACQ374SCX.
• SN74LV374A: Low-voltage version with improved ESD protection and reduced power consumption.

Note: The above alternative models are just a few examples, and there are several other similar ICs available in the market.

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Word Count: 455 words