SN74AHC14QDRQ1

Product Overview

• Category: Integrated Circuit (IC)
• Use: Inverting Schmitt Trigger
• Characteristics:
  • High-speed CMOS technology
  • Low power consumption
  • Wide operating voltage range
  • Schmitt trigger inputs for noise immunity
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: The SN74AHC14QDRQ1 is a hex inverter with Schmitt-trigger inputs, designed for automotive applications.
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2 V to 5.5 V
• Input Voltage Range: 0 V to VCC
• Output Voltage Range: 0 V to VCC
• Operating Temperature Range: -40°C to +125°C
• Propagation Delay Time: 7 ns (typical)
• Output Current: ±8 mA
• Input Capacitance: 3.5 pF (typical)

Detailed Pin Configuration

The SN74AHC14QDRQ1 has a 14-pin SOIC package with the following pin configuration:

__ __ 1 | 1 \/ 14 | VCC 2 | 2 13 | A 3 | 3 12 | Y 4 | 4 11 | B 5 | 5 10 | GND 6 | 6 9 | C 7 | 7 8 | Y ----------

Functional Features

• Hex inverter with Schmitt-trigger inputs
• Provides hysteresis for improved noise immunity
• Converts low-level signals to high-level signals and vice versa
• Suitable for use in automotive applications
• High-speed operation with low power consumption

Advantages and Disadvantages

Advantages: - Wide operating voltage range allows compatibility with various systems - Schmitt trigger inputs provide noise immunity - Low power consumption helps conserve energy - High-speed operation enables quick signal processing

Disadvantages: - Limited output current may not be suitable for high-power applications - Input capacitance can affect signal integrity in high-frequency applications

Working Principles

The SN74AHC14QDRQ1 is based on high-speed CMOS technology. It consists of six independent inverters with Schmitt-trigger inputs. The Schmitt trigger inputs ensure that the output transitions occur at different voltage levels for rising and falling input signals, providing hysteresis and improving noise immunity.

When the input voltage crosses the upper threshold level (VH), the output switches to a low logic level. Conversely, when the input voltage crosses the lower threshold level (VL), the output switches to a high logic level. This behavior makes the SN74AHC14QDRQ1 suitable for applications where noise rejection is critical.

Detailed Application Field Plans

The SN74AHC14QDRQ1 is commonly used in automotive electronics, where noise immunity is essential. Some specific application areas include:

1. Automotive Engine Control Units (ECUs)
2. Transmission Control Modules (TCMs)
3. Body Control Modules (BCMs)
4. Powertrain Control Modules (PCMs)
5. Anti-lock Braking Systems (ABS)
6. Airbag Control Units (ACUs)

In these applications, the SN74AHC14QDRQ1 helps ensure reliable signal processing and noise rejection, contributing to the overall performance and safety of the automotive system.

Detailed and Complete Alternative Models

1. 74HC14: Similar hex inverter with Schmitt-trigger inputs, but operates at a higher voltage range (2 V to 6 V).
2. CD40106: Hex Schmitt-trigger inverter with a wider supply voltage range (3 V to 18 V) and higher output current capability.
3. SN74LVC14A: Hex inverter with Schmitt-trigger inputs, designed for low-voltage applications (1.65 V to 5.5 V).

These alternative models offer similar functionality to the SN74AHC14QDRQ1 but may have different specifications or operating characteristics. The choice of alternative model depends on the specific requirements of the application.

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