78K
78K is the trademark name of 16- and 8-bit microcontroller family: 23-4–23-5 : 78 manufactured by Renesas Electronics, originally developed by NEC: 229 started in 1986.: 7, line 2 The basis of 78K Family is an accumulator-based register-bank CISC architecture. 78K is a single-chip microcontroller, which usually integrates; program ROM, data RAM, serial interfaces, timers, I/O ports, an A/D converter, an interrupt controller, and a CPU core, on one die.: 412
| General information | |
|---|---|
| Launched | 1986 |
| Discontinued | current |
| Common manufacturer(s) |
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| Performance | |
| Max. CPU clock rate | 32 kHz to 24 MHz |
| Data width | 16/8 |
| Address width | 20(24)/16 |
| Architecture and classification | |
| Application | Embedded |
| Instruction set | 78K Family |
| Physical specifications | |
| Cores |
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| Products, models, variants | |
| Variant(s) |
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| History | |
| Predecessor(s) | 87AD Family, 17K Family |
| Successor(s) | RL78 Family |
Its application area is mainly simple mechanical system controls and man-machine interfaces.
Regarding software development tools, C compilers and macro-assemblers are available.: 99 As for development tool hardware, full probing-pod type and debug port type in-circuit emulators, and flash ROM programmers: 22–24 are available.
Historically, the family has 11 series with 9 instruction set architectures. As of 2018, 3 instruction set architectures, those are 8-bit 78K0, 8-bit 78K0S, and 16-/8-bit 78K0R, are still promoted for customers' new designs. But in most of cases, migration to RL78 Family, which is a successor of 78K0R and almost binary level compatible with 78K0R,: 20 is recommended.