Product Overview: 74HCT423D from NXP Semiconductors

The 74HCT423D is a high-speed Si-gate CMOS device designed and manufactured by NXP Semiconductors. This integrated circuit belongs to the 74HCT family, which is known for its compatibility with TTL-based designs while offering the low power consumption and high noise immunity typical of CMOS technology.

Key Features

• Logic Type: Dual Retriggerable Monostable Multivibrator with Reset
• Package: SO-16 (Small Outline package with 16 pins)
• Supply Voltage Range: 4.5V to 5.5V
• Output Current: -8mA to 8mA
• Propagation Delay Time: 18ns (typical)
• Temperature Operating Range: -40°C to +125°C
• Logic Level Compatibility: TTL Input

Functional Description

The 74HCT423D device features two independent monostable multivibrators (or 'one-shots') with retriggerable capability. Each multivibrator has an active LOW trigger input (A), an active HIGH trigger input (B), an overriding active LOW direct clear input (nCD), an output (Q), and an inverted output (nQ). The device can be triggered on the falling-edge of input A or the rising-edge of input B. Once triggered, the output Q goes HIGH and the nQ goes LOW. The output pulse width is determined by external timing components (resistor and capacitor).

Applications

The 74HCT423D is suitable for a wide range of applications, including:

• Timing circuits
• Pulse shaping
• Missing pulse detection
• Enabling/disabling functions
• Industrial controls
• Embedded systems

Quality and Reliability

NXP Semiconductors is committed to delivering high-quality and reliable components. The 74HCT423D is subjected to rigorous testing and quality control processes, ensuring performance consistency and reliability for critical applications in industrial and consumer electronics.