74HC283N,652

Overview

The NXP USA Inc. 74HC283N,652 is a high-speed Si-gate CMOS 4-bit binary full adder with fast carry, housed in a DIP16 plastic dual in-line package (SOT38-4). It adds two 4-bit binary words plus an incoming carry to produce sum outputs and an outgoing carry. The device complies with JEDEC standard no. 7A and operates within a supply voltage range of 2.0 V to 6.0 V. Propagation delays from inputs to sums range from 16 ns to 23 ns at 5.0 V with 15 pF load. It supports temperature ranges of −40 °C to +85 °C and −40 °C to +125 °C.

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 for HBM and 200 V for MM

Applications

• Cascading in 4-bit increments for multi-bit arithmetic
• Implementing 3-bit or smaller binary adders
• Creating 5-input encoders with equally weighted inputs
• Constructing 5-input majority gates

Procurement Notes

Verify the specific ordering suffix matches the required package type, as the base part number covers multiple variants including SO, SSOP, and TSSOP packages. Confirm the temperature grade corresponds to your operational environment requirements. Ensure the component source aligns with the manufacturer's current production status and data sheet revision to guarantee parameter accuracy and availability.

Selection Notes

Select this component when pin compatibility with LSTTL is required alongside CMOS low-power dissipation. Choose based on the necessary operating temperature range, as specifications vary between −40 °C to +85 °C and −40 °C to +125 °C. Consider the propagation delay characteristics relative to your system clock speed and supply voltage constraints, typically operating between 2.0 V and 6.0 V.

Part Context

This device belongs to the 74HC series of high-speed CMOS logic functions. It serves as the binary equivalent to the 74HC583 BCD adder. The 'N' suffix in the model number specifically denotes the DIP16 package variant, distinguishing it from surface-mount options like the D (SO16), DB (SSOP16), or PW (TSSOP16) versions within the same functional family.

Replacement Considerations

Direct substitutes include other 74HC283 variants from different manufacturers that adhere to the same pinout and electrical specifications. Surface-mount equivalents such as 74HC283D, 74HC283DB, or 74HC283PW offer identical functionality in alternative packages. Verify that any replacement meets the specific temperature range and ESD protection levels defined in the original datasheet.