CD4528BCN – NATIONAL SEMICONDUCTOR

Overview

The onsemi CD4528BCN is a dual monostable multivibrator IC designed to generate precisely timed output pulses in response to a trigger input. Its primary function is to provide a stable, fixed-duration pulse width, crucial for timing control in digital systems. A key design consideration for this CMOS device is the trade-off between its wide operating voltage range (3V to 15V) and the inherent susceptibility of its trigger inputs to noise, necessitating careful external filtering or Schmitt trigger buffering in high-EMI environments to prevent spurious triggering and ensure reliable pulse generation.

Key Features

• Dual Monostable Multivibrator Configuration
• Fixed Pulse Width: 65 ns (typical)
• Wide Supply Voltage Range: 3V to 15V
• Output Drive Capability: 3.5mA (High), 8.8mA (Low)
• Operating Temperature: -55°C to 125°C
• Package: 16-PDIP (0.300″ width)

Applications

The component is engineered for deployment in systems requiring high reliability and performance under specific operating conditions. It provides functional stability across the stated design envelope.

• Precise pulse generation for digital timing circuits
• Debouncing mechanical switch inputs in control panels
• Generating delay signals for sequential logic operations
• Creating fixed-duration strobes for data acquisition systems