74HC283DB,112

Overview

The 74HC283DB,112 is a high-speed Si-gate CMOS 4-bit binary full adder with fast carry, manufactured by NXP USA Inc. It operates within a supply voltage range of 2.0 V to 6.0 V and supports an ambient temperature range from -40 °C to +125 °C. The device performs the addition of two 4-bit binary words plus an incoming carry (CIN), producing sum outputs (S1 to S4) and an outgoing carry (COUT). It utilizes a 16-lead SSOP plastic shrink small outline package (SOT338-1). Propagation delays vary based on voltage and load; for instance, CIN to S1 delay ranges from 15 ns to 160 ns at 6.0 V and 2.0 V respectively under specified conditions.

Feature Summary

• High-speed 4-bit binary addition capability
• Fast internal look-ahead carry mechanism
• Cascadable in 4-bit increments
• ESD protection exceeding 2000 V per HBM standard

Applications

• Implementing 3-bit or larger binary adders
• Constructing 5-input encoders with equally weighted inputs
• Designing 5-input majority gates

Procurement Notes

Verify component authenticity through authorized channels as the product may be subject to discontinuation notices. Confirm that the SSOP-16 package matches design requirements. Ensure compliance with JEDEC standard no. 7A. Check for specific manufacturing date codes if long-term availability is critical, as Philips/Nexperia products often undergo lifecycle transitions.

Selection Notes

Select this component when a 4-bit binary full adder with fast carry is required in a surface-mount SSOP-16 package. It is suitable for designs needing operation across a wide temperature range (-40 °C to +125 °C) and supply voltages between 2.0 V and 6.0 V. Consider its pin compatibility with low power Schottky TTL (LSTTL) if interfacing with legacy logic families.

Part Context

This device belongs to the 74HC series of high-speed CMOS logic devices. It is functionally equivalent to the 74HC583 but handles pure binary rather than BCD arithmetic. The 'DB' suffix indicates the SSOP16 package variant, while '112' denotes the specific ordering code used by Nexperia/Philips Semiconductors for this configuration.

Replacement Considerations

Direct substitutes include other 74HC283 variants such as 74HC283N (DIP16), 74HC283D (SO16), and 74HC283PW (TSSOP16), provided the package footprint is adaptable.