74HC283D/AUJ

Overview

The NXP USA Inc. 74HC283D/AUJ is a high-speed Si-gate CMOS binary full adder with fast carry, housed in a 16-lead SO plastic small outline package (SOT109-1). It adds two 4-bit binary words plus an incoming carry to produce sum outputs and an outgoing carry. The device operates within a supply voltage range of 2.0 V to 6.0 V and supports ambient temperatures from -40 °C to +125 °C. Propagation delays vary by output stage; typical values at 5.0 V include 16 ns for CIN to S1 and 23 ns for CIN to S4.

Feature Summary

• High-speed 4-bit binary addition capability
• Fast internal look-ahead carry mechanism
• Pin compatible with low power Schottky TTL (LSTTL)
• ESD protection exceeding 2000 V HBM and 200 V MM

Applications

• Implementing cascaded multi-bit binary adders
• Constructing 5-input encoders with equally weighted inputs
• Designing 5-input majority gates

Procurement Notes

Verify the specific suffix 'D/AUJ' against current manufacturer documentation, as the primary datasheet references '74HC283D'. Confirm RoHS compliance status and ensure the operating temperature range meets system requirements. Check for any product change notifications or obsolescence notices associated with this specific ordering code before finalizing procurement plans.

Selection Notes

Select this component when a 4-bit binary full adder with fast carry is required in a surface-mount SO16 package. Ensure the design accommodates the specified propagation delays and power dissipation limits. Verify that the logic levels match the active HIGH or LOW operand requirements of the application circuit.

Part Context

This part belongs to the 74HC series of high-speed CMOS logic devices. It functions as a dedicated arithmetic logic component, specifically designed for binary addition operations. The device is compliant with JEDEC standard no. 7A and offers multiple package options including DIP, SSOP, and TSSOP variants alongside the SO16 configuration.

Replacement Considerations

The 74HC583 serves as the BCD version of this adder. Other 74HC283 variants such as 74HC283N, 74HC283DB, and 74HC283PW are pin-compatible alternatives offering different package styles.