In more complex cases, a programmable logic device like a CPLD or FPGA might be used. The falling price of programmable logic devices, combined with their reduced size and power consumption compared to discrete components, is making them common even for simple systems.
For intricate applications, programmable logic devices such as CPLDs or FPGAs are often employed.  The decreasing price of these devices, along with their smaller size and lower energy usage compared to traditional discrete components, has made them a popular choice even for basic systems.