74F163ADC – FSC

The 74F163ADC, manufactured by Fairchild Semiconductor (FSC) as indicated by the FSC prefix and date codes, is a synchronous 4-bit binary counter implemented in Fast Schottky TTL logic. Based on the ‘F’ family designation, it offers improved speed and lower power consumption compared to standard TTL. The “DC” suffix, along with the date codes “1985” and “1988,” suggests this part is packaged in a ceramic dual-in-line package (CERDIP), offering enhanced thermal performance and reliability compared to plastic packages, particularly in extended temperature ranges. The counter features synchronous counting, meaning all flip-flops change state simultaneously on the rising edge of the clock input, eliminating ripple-through delays. It includes a synchronous clear input and parallel load capability, allowing for preset initialization. The device outputs a ripple carry output (RCO) to enable cascading multiple counters for higher bit counts.