BUY SN74LS83AN https://www.utsource.net/itm/p/1701401.html
4-BIT BINARY FULL ADDER WITH FAST CARRY
Description: 4-Bit Binary Adder with Fast Carry
Features:
- TTL-Compatible Input and Output Levels
- High Speed Operation
- Low Power Consumption
- 16-Pin DIP Package
Applications:
- Arithmetic Operations
- Binary Addition
- Binary Subtraction
- Binary Multiplication
- Binary Division
- Binary Comparisons
- Binary Counters
- Binary Registers
- Binary Encoders/Decoders
(For reference only)