| ??? 01/18/12 12:09 Read: times |
#185549 - Single chip solution is simple Responding to: ???'s previous message |
Since you have experience with PIC, you know that you need little external circuitry for many MCUs. e.g. decoupling caps, reset, optional crystal, ...
If you are connecting to an external bus like MIDI, RS232, RS485 you need external buffer / driver chips. On board or inside case wiring can often go without any external chips if they are inaccessible to the outside world. Many 8051 variants have internal pull-ups, push-pull drivers exactly like most other MCU families. This makes life easier. So I am surprised by your 'buffer' comments. If your design needs an external memory bus, life gets complicated. I would look for a single chip solution, or even using serial SRAM / EEPROM. David. |
| Topic | Author | Date |
| Thanks To All | 01/01/70 00:00 | |
| Single chip solution is simple | 01/01/70 00:00 | |
| well, I'm not | 01/01/70 00:00 | |
| Additional pull-ups are sufficient in many cases... | 01/01/70 00:00 | |
| Why not choose a modern 8051? | 01/01/70 00:00 | |
| I wasn't aware... | 01/01/70 00:00 | |
| sure | 01/01/70 00:00 | |
| Some Atmel and STC chips too | 01/01/70 00:00 | |
| SiLabs | 01/01/70 00:00 | |
SILabs | 01/01/70 00:00 |