Catalog > Semiconductors > Integrated Circuits 74LS181 IC Vintage 4-Bit Arithmetic Logic Unit (ALU) Part No: 74LS181 12.97 ZAR inc for 1 Each (Quoting) Add to Cart Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Specifications Min VCC: 4.75V VCC (Max): 5.25V No. of Channels: 2 Inputs per channel: 4 IOL (Max): 16mA IOH (Max): 0.8mA Input type: Bipolar Output type: Push-Pull Max Speed: (TPD 10-50ns) Max Data rate: 70Mbps Low Power Requirements Standard TTL Switching Voltages Rating: Catalog Operating temperature range: 0°C to 70°C