Max Speed
Max Distance
Topology
Max Nodes
| Physical Layer | Single-ended |
| Wire Count | 4+ |
| Power Delivery | No |
| Communication Mode | Synchronous |
| Architecture | Master-Slave |
| Error Detection | None |
| Addressing Method | Chip Select |
| Industry Domain | Embedded Systems |
| Primary Application | IC Communication |
| Year Introduced | 1980s |
| Standard Body | Motorola |
| Implementation Cost | Low |
| Complexity Level | Low |
| A high-speed synchronous serial communication protocol using separate lines for clock, data in, data out, and chip select. Commonly used for communication with sensors, displays, and memory devices in embedded systems. |