onsemi Specialty Logic DM74S283N

The DM74S283N is a 4-bit binary adder designed to perform the addition of two 4-bit binary numbers, providing sum outputs for each bit and a carry output from the fourth bit. It features full internal look-ahead across all four bits, allowing for partial look-ahead performance while maintaining the simplicity and reduced package count typical of ripple-carry implementations. The adder logic is implemented in its true form, enabling end-around carry without additional logic or level inversion. This device operates with a supply voltage of 4.75V to 5.25V and has a typical power dissipation of 510 mW. It supports a temperature range from 0¬8C to +70¬8C for operation and ,àí65¬8C to +150¬8C for storage. The typical propagation delay time for the adder is approximately 15 ns for two 8-bit words and 30 ns for two 16-bit words. The DM74S283N is housed in a 16-lead plastic dual-in-line package (PDIP), making it suitable for various applications requiring efficient binary addition.