| ??? 09/29/05 10:01 Read: times |
#101706 - '573? Responding to: ???'s previous message |
Wow, so far I thought that data have to be bidirectional... at least for a RAM (which MUST be present for BASIC52 to work).
But I can imagine two 573s in the opposite directions, I just don't know, why (well I can imagine that data needs to be held longer than PSEN/RD/WR lasts). Jan Waclawek |
| Topic | Author | Date |
| Buffering address/data bus Basic-52 | 01/01/70 00:00 | |
| direction | 01/01/70 00:00 | |
| Yes | 01/01/70 00:00 | |
| '573? | 01/01/70 00:00 | |
| 245 | 01/01/70 00:00 | |
| Only need one latch | 01/01/70 00:00 | |
| Re-read this... | 01/01/70 00:00 | |
| negative logic | 01/01/70 00:00 | |
| caqll a spade a spade | 01/01/70 00:00 | |
| Ok... I follow you, but... | 01/01/70 00:00 | |
| 74F623 instead of 74F245 | 01/01/70 00:00 | |
| I'd stick with a 245 | 01/01/70 00:00 | |
74AC623 is also fast | 01/01/70 00:00 | |
| A little clarification | 01/01/70 00:00 | |
| if you are ANDing them it will never wor | 01/01/70 00:00 | |
| How fast is your memory? | 01/01/70 00:00 |