CD74HCT283E

Specialty Logic Overview

The CD74HCT283E is a high-speed CMOS logic binary full adder manufactured by Harris Corporation. It operates within a supply voltage range of 2V to 6V and features a 16-pin PDIP package for through-hole installation. The device supports a maximum low-level output current of 4mA and a maximum high-level output current of -4mA. It exhibits a maximum propagation delay of 240ns at load capacitance (CL). The component functions reliably across an extended temperature range from -55°C to 125°C.

Specialty Logic Feature Summary

• Performs 4-bit binary addition with internal carry lookahead functionality
• Generates a carry output when the sum exceeds 15
• Compatible with standard TTL logic input levels

Specialty Logic Applications

• Digital arithmetic processing units
• Address calculation circuits
• Data conversion systems

Specialty Logic Procurement Notes

Verify manufacturer origin as Harris Corporation, noting potential legacy status or Rochester Electronics distribution. Confirm RoHS compliance status, as older Harris batches may not meet current environmental standards. Validate pinout compatibility with target PCB footprints before integration.

Specialty Logic Selection Notes

Select this component for designs requiring 4-bit binary addition with TTL-compatible inputs. Ensure operating voltage remains between 2V and 6V. Consider the 240ns propagation delay for timing constraints. Verify package availability in 16-PDIP format for through-hole assembly requirements.

Specialty Logic Part Context

Part of the CDx4HC/CDx4HCT series of high-speed CMOS logic devices. Designed for general-purpose digital applications requiring reliable binary arithmetic operations. Utilizes advanced CMOS technology to provide performance comparable to earlier bipolar families while maintaining lower power consumption.

Specialty Logic Replacement Considerations

CD74HC283E offers similar functionality with HC logic family characteristics.