| nr | 
name | 
description | 
manufacturer | 
| 100181 | 
100181 | 
4-bit ALU binary/decimal CERDIP24 | 
Philips | 
| 1855 | 
CDP1855 | 
8-Bit Programmable Multiply/Divide Unit, DIP28 | 
Intersil* | 
| 4581 | 
4581 | 
CMOS* 4 bit ALU 2us | 
| 54181 | 
 | 
4-Bit Arithmetic Logic Unit | 
NS | 
| 74181 | 
74181 | 
4-bit ALU | 
| 74181 | 
74HC181 | 
4-bit arithmetic logic unit DIL24, DIL24SK | 
Philips | 
| 74181 | 
74HCT181 | 
4-bit arithmetic logic unit DIL24, DIL24SK | 
Philips | 
| 74181 | 
74HCT181 | 
4-bit arithmetic logic unit | 
Philips | 
| 74181 | 
N74F181 | 
4-bit arithmetic logic unit DIL24SK | 
Philips | 
| 74281 | 
74S281 | 
4-bit RALU | 
| 74381 | 
74381 | 
ALU 20-pin look ahead carry | 
| 74382 | 
74382 | 
ALU 20-pin ripple carry | 
| 74583 | 
74HC583 | 
4-bit full adder with fast carry DIL16 | 
Philips | 
| 74583 | 
74HCT583 | 
4-bit full adder with fast carry DIL16 | 
Philips | 
| 74583 | 
74HCT583 | 
4-bit full adder with fast carry | 
Philips | 
| 74681 | 
74681 | 
4-bit RALU | 
| 74688 | 
74HCT688 | 
8-bit magnitude comparator | 
Philips |