CD74ACT283

The CD74ACT283M from Texas Instruments is a 4-bit binary adder designed with Advanced CMOS Logic technology. This device efficiently adds two 4-bit binary numbers and generates a carry-out bit when the sum exceeds 15. It is suitable for applications requiring fast carry propagation, offering speeds comparable to bipolar FAST™/AS/S logic but with significantly reduced power consumption.

The adder features buffered inputs and provides ±24mA output drive current, with a fanout capability of up to 15 FAST™ ICs. It can also drive 50Ω transmission lines. The device operates over a wide temperature range of -55°C to 125°C and supports supply voltages from 4.5V to 5.5V, with a nominal voltage of 5V.

Packaged in a 16-pin SOIC, the CD74ACT283M is designed for surface mount applications. Its mechanical dimensions include a width of 3.91mm, length of 9.9mm, thickness of 1.58mm, and a pitch of 1.27mm. The maximum height is 1.75mm. The device also boasts 2kV ESD protection and is built using an SCR-latchup-resistant CMOS process.

This binary adder can be utilized in both active-HIGH and active-LOW operand configurations due to the symmetry of the add function. When using positive logic, the carry-in input should be tied LOW if no carry-in is present. The CD74ACT283M is recommended for new designs and is RoHS compliant.