The CD4008BK is a 4-Bit Full Adder with Carry-In and Carry-Out, part of the CD4000 series of CMOS logic integrated circuits. Manufactured by Intersil Corporation, this device is designed for implementing binary addition in digital systems.

Applications

• Binary addition circuits
• Arithmetic logic units (ALUs)
• Digital counters
• Process control systems
• Instrumentation

Features

• 4-Bit binary addition
• Full carry look-ahead across the four bits
• Carry-in and carry-out capability for cascading
• High voltage type (20V rating)
• Medium-speed operation: tPLH = 50ns (typ.) at VDD = 10V
• Standardized symmetrical output characteristics
• 100% tested for quiescent current at 20V
• 5V, 10V, and 15V parametric ratings
• Meets all requirements of JEDEC Tentative Standard No. 13B, "Standard Specifications for Description of 'B' Series CMOS Devices"

Benefits

• Enables efficient binary addition in digital circuits.
• Cascading capability allows for addition of wider bit words.
• High noise immunity reduces susceptibility to spurious signals.
• Standardized output characteristics simplify circuit design.
• Wide operating voltage range provides flexibility in system design.

Additional Details

The CD4008BK operates over a wide voltage range, typically from 3V to 18V, making it compatible with various power supply configurations. It is supplied in a 16-lead Dual-In-Line Package (DIP). The device's inputs and outputs are fully protected against electrostatic discharge (ESD). The carry look-ahead feature provides faster addition compared to ripple-carry adders. It is essential to observe proper CMOS handling precautions when using this device to prevent damage from static electricity.

The absolute maximum ratings for the CD4008BK include a DC supply voltage range of -0.5V to +20V, input voltage range of -0.5V to VDD + 0.5V, and a storage temperature range of -65°C to +150°C.